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As a Software Engineering Intern, you will work side-by-side with your mentor and teammates to build software for Optiver's real-time trading environment. You will work on projects that further develop and optimize our systems, testing and shipping code with guidance from experienced engineers and seeing how your work performs in production. In our business, where markets are always evolving, each day brings new engineering problems shaped by live conditions, performance requirements and system reliability. Optiver is building with cutting edge AI technology in the most competitive, data rich landscapes in the world: financial markets. That means no two days are the same, and every day brings new, exciting technical challenges to solve. What you'll do During the ten-week internship, you will be mentored by Optiver engineers, play a key role in advancing our world-class trading systems and work on projects that push the boundaries of performance and efficiency. You will: Build a strong foundation in trading fundamentals, from theoretical concepts and financial markets to strategies and the technology that supports them Work closely with senior engineers and traders to design, develop, test, and ship your code to production Tackle complex, real-world problems to enhance your critical thinking and problem-solving skills Learn how engineers collaborate with traders and researchers to understand requirements, respond to feedback and improve systems quickly Based on your performance during the internship, you could receive an offer to join our firm full-time after your studies, in either our London or Amsterdam office. What you'll get You'll join a culture of collaboration and excellence, where you'll be surrounded by curious thinkers and creative problem solvers. Motivated by a passion for continuous improvement, you'll thrive in a supportive, high-performing environment alongside talented colleagues, working collectively to tackle the toughest problems in the financial markets. In addition, you'll receive: A highly competitive internship compensation package and accommodation included Extensive office perks, including breakfast and lunch and world-class barista coffee. The opportunity to participate in sports and leisure activities, along with social events Who you are Penultimate-year student in Computer Science, Computer Engineering or equivalent, with the ability to work full time upon graduation in 2028 Passionate for clean code, simple, well-architected systems and continuous improvement Proficient in industry-standard coding languages such as C++, Python, or Java, with a strong understanding of underlying computer architecture and system operations Have an entrepreneurial attitude and an interest in the financial industry An analytical mindset and strong problem-solving skills Able to work closely with other engineers, traders and business operations Applicants must have the right to work in the UK for the full duration of the London Summer 2027 Internship. For this internship, Optiver is unable to provide visa sponsorship, visa extension support, or other immigration support. Any offer will be conditional on satisfactory right-to-work verification before the internship begins How to Apply: Apply directly via the form below for the position of Software Engineer Intern. Please provide us with a CV in English. Unfortunately we cannot accept applications via email for data protection reasons. If your application is selected to proceed to the next round, you will be required to complete online assessments. By submitting your application you are confirming that you will be able to take the assessment within 7 days. Kindly note that we do not require any assistance from third-parties including agencies in the recruitment of this role. If you have any questions feel free to contact our Recruitment team via the contact form Diversity statement Optiver is committed to diversity and inclusion . We encourage applications from candidates from any and all backgrounds, and we welcome requests for reasonable adjustments during the process to ensure that you can best demonstrate your abilities. Please let us know if you would like to request any reasonable adjustments by contacting the Recruitment team via the contact form , selecting "Reasonable Adjustments" as the subject of your inquiry. For answers to some of our most frequently asked questions, refer to our FAQs . For applicants based in India, our entry route is via the placement office internship hiring season (July/August). Optiver has a global application re-apply policy for our intern and graduate roles. If you have completed an online assessment or interviewed for a technology graduate or internship role at any Optiver location in the past 8 months, please note that you are not yet eligible to reapply. We welcome you to re-apply after the 8-month cool off period. Find Jobs in United Kingdom on Arbeitnow

We're making energy fair, clean, and simple for all using technology. Octopus Energy started with a bold idea: to build Britain's first truly digital energy supplier. By combining world-class tech with brilliant humans who care deeply about customers and driving the renewable energy transition, we made it happen and in 2025, we became Britain's largest energy supplier. Octopus Energy Group is a global energy transition collective. 10 businesses working across 4 continents to tackle energy transformation at nearly every front. And we constantly push to make energy better. Tirelessly campaigning for fair protections for customers. And building innovative technologies that forge a path to a green energy system. We're made up of 10,000+ authentic, committed people working around the world on stuff you'd never expect. We're united by a shared goal: to drive the global green energy revolution. Read our Spotlight series to meet some of the team. About the role You and a group of strong analysts will be generating insights to guide Octopus' commercial decisions. You will be leading the UK data commercial team and guiding global cooperation in this critical area. You will act as a strategic business partner to Commercial, Sales, Marketing and Energy Markets teams, combining hands-on technical expertise with strong team leadership. What You'll Do Lead UK team: Lead, set priorities, coordinate and review the work of a high-performance team of commercial and marketing data analysts. Strategic analytics : Use data to guide our understanding of our customers and our competitors. Impact our UK and global strategy through insights presented to the senior leadership team. Pricing operations : Enable us to react quickly to the ever-changing energy industry through smooth price changes, ensuring we offer good deals for our millions of customers and comply with regulations. Metrics : Help people all across the business understand the key drivers of their operations through well-defined KPIs and intuitive dashboards. Examples of metrics include seeing why people churn, performance of marketing campaigns, lifetime value calculations etc. Global cooperation: Prioritise and coordinate the data teams supporting Octopus' operations globally, balancing local needs with global opportunities. What You Have Experience as a manager of a high-performing data team. Hands-on expertise with modern data platforms and analytical tools (especially SQL and python - see our full stack below). Passion for both hands-on data work and leading teams to deliver insights. Strong communication skills to influence non-technical stakeholders and senior leadership. Strong commercial acumen, preferably in pricing, margin optimisation, and/or growth analytics. A track record of delivering actionable insights that drive measurable business impact. Our Data Platform Stack We employ software engineering best practices to design, test, and deploy our data platform and services using the below technologies: Python, pandas and SQL in Jupyter notebooks for analysis, and for scripting dbt and Databricks data platform with Delta Lake Lightdash as our BI tool and semantic layer Streamlit for interactive data applications Airflow / Orchestra for orchestration Kubernetes for application deployment CI/CD with GitHub and CircleCI Infrastructure on AWS, deployed with Terraform / Spacelift Why else you'll love it here • Wondering what the salary for this role is? Just ask us! On a call with one of our recruiters it's something we always cover as we genuinely want to match your experience with the correct salary. The reason why we don't advertise is because we honestly have a degree of flexibility and would never want salary to be a reason why someone doesn't apply to Octopus - what's more important to us is finding the right octofit! • Octopus Energy Group is a unique culture . An organisation where people learn, decide, and build quicker. Where people work with autonomy, alongside a wide range of amazing co-owners, on projects that break new ground. We want your hard work to be rewarded with perks you actually care about! We were named the UK's top company to work for in 2025 , and we ranked in the top ten in the Sunday Times Best Places to Work 2026 . Our Group CEO, Greg has recorded a podcast about our culture and how we empower our people. We've also been placed in the top 10 companies for senior leadership • Visit our UK perks hub - Octopus Employee Benefits If this sounds like you then we'd love to hear from you, tell us what you care about, why Octopus feels right and most importantly, bring us the real you! Applying for jobs can be a bit scary so have a nose through some of our tips first 🚀 P.S. Our process usually takes up to 4 weeks, but we'll always do our best to flex around what works for you. Along the way, you'll chat with our recruitment team and your Recruiter will help you throughout different stages. Got any burning questions before then? Drop us a message at ----- and we'd love to help! Are you ready for a career with us? We want to ensure you have all the tools and environment you need to unleash your potential. Need any specific accommodations? Whether you require specific accommodations or have a unique preference, let us know, and we'll do what we can to customise your interview process for comfort and maximum magic! Studies have shown that some groups of people, like women, are less likely to apply to a role unless they meet 100% of the job requirements. Whoever you are, if you like one of our jobs, we encourage you to apply as you might just be the candidate we hire. Across Octopus, we're looking for genuinely decent people who are honest and empathetic. Our people are our strongest asset and the unique skills and perspectives people bring to the team are the driving force of our success. As an equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone. Find Jobs in United Kingdom on Arbeitnow

Waracle are looking for a Senior QA for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations. This is a Hybrid role working from our London office 2 days a week and is available on a Contract (Inside IR35) basis, initially for 6 months. Are you a technical quality specialist who thrives on collaboration, engineering rigor, and robust automation? We are looking for a Senior Quality Engineer who combines strong software engineering discipline with deep test automation expertise to deliver scalable, reliable, and maintainable quality solutions across mobile and API platforms. Key Deliverables & Responsibilities Strategy & Framework Architecture: Design, build, and scale automated testing frameworks for mobile applications (iOS/Android) and APIs, integrating automated test suites directly into CI/CD pipelines. Quality & NFR Execution: Implement early-stage quality controls, test data management strategies, mobile security checks, accessibility testing, and performance validation across core user journeys. Cross-Functional Technical Integration: Collaborate with developers, DevOps, and security specialists to improve system testability, debug complex root causes, and build resilient continuous testing pipelines. Standards & Tooling: Establish robust test automation standards, evaluate tooling, and optimize technical test coverage to support reliable software releases. Requirements & Technical Experience Hands-on Quality Engineering: Proven experience delivering test automation solutions across mobile (iOS and Android) and API architectures. Core Automation & Programming: Strong object-oriented programming experience in Java, TypeScript, and/or Python, with direct experience building automation frameworks from scratch. Mobile Automation Frameworks: Demonstrable experience automating native and hybrid mobile applications using tools such as Appium, Espresso, and/or XCUITest . CI/CD & Pipeline Integration: Experience embedding automated test execution within modern continuous integration and delivery pipelines. What to expect from our hiring process First Hello: An informal chat with your dedicated Talent Attraction Partner to talk about Waracle, what you want out of your next move, day rate, contract duration and office hybrid working model. Craft Showcase: A chance to demonstrate your real-world expertise. This will be a focused take-home task (capped at 2–3 hours to respect your time) 3. Talking Impact: A collaborative deep dive into how you solve problems, work with others, and raise the bar, guided by our core values and competency framework. Your Talent Attraction Partner will be in your corner through every step right up to your Welcome Ritual on day one. We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, gender, disability, religion/belief, sexual orientation or age. Find Jobs in United Kingdom on Arbeitnow

Before the detail, here's the challenge you'd help us solve. We build the embodied intelligence that moves real vehicles safely, and the ecosystem a billion machines will run on in the future. Very few people in AI can say this. Every role here, whatever the team, plugs into that. Here's what this particular role covers. 🛠️ About our Talent Acquisition Teams Wayve's Talent Acquisition team plays a critical role in our success. We hire the people who build and ship our autonomous driving technology. We're a diverse team, based across the UK, US and Japan, and we take a sourcing first, quality focused and data-driven approach, acting as true partners to the business. 🧠 Your day-to-day • Manage end-to-end recruitment for each role - sourcing, screening, interviewing and closing candidates, using Ashby to track your pipeline. • Proactively source and headhunt candidates rather than relying on inbound applications, balancing depth of engagement for quality hires with the volume each search demands. • Run regular check-ins and debriefs with hiring managers to keep every search on track. • Deliver a world-class candidate experience through transparent communication, timely feedback and a seamless interview process. • Track day-to-day metrics and flag pipeline bottlenecks as they come up. 🧩 What you'll be working on: • Owning a portfolio of typically 10-15 concurrent roles spanning software engineering, machine learning, integration and data engineering through to product and program management. • Educating hiring managers and stakeholders on job profiles and search strategy, so every search starts from a sharp, well-defined brief. • Using data to make the right calls on where to focus search effort across your portfolio, and continuously improving how we hire based on what that data tells you. • Advising hiring managers on how AI is changing the shape of technical and product roles, and helping translate that into hiring strategy and candidate profiles. • Helping build the high-performing, diverse technical and product teams that drive Wayve's innovation and business impact as the company scales. 🙌 You should apply if: • You have 5+ years of full-cycle technical recruitment experience, in a fast-scaling tech startup or scale-up environment. • You're a sourcing-driven recruiter at heart. You proactively headhunt and engage candidates rather than waiting for applications to come to you, and you know how to balance sourcing for quality with adding volume into the funnel when the search calls for it. • You're highly data-driven, using pipeline data to diagnose bottlenecks, understand what's working, and course-correct your search when things aren't converting. • You act as a true business partner to hiring managers, helping shape and define roles, not just taking orders. • You're forward-thinking about AI and how it's changing roles and ways of working, and can advise hiring managers on how this shows up in the profiles they're hiring for. • You have hands-on experience using Ashby to manage your recruitment pipeline. • Ideally, you've worked across both agency and in-house recruitment, giving you a well-rounded view of sourcing and candidate management. 🌱 Not ticking every box? That's totally okay! If you're passionate about autonomy and keen to learn, we encourage you to apply even if you don't meet every requirement. More about Wayve: 🚀 Wayve is building the leading AI platform for autonomous driving. We are pioneering an end to end AI approach that enables vehicles to learn directly from real world experience, developing the ability to adapt, generalise and improve at scale. Instead of relying on hand coded rules or pre mapped environments, our AI Driver learns to drive by understanding the world around it. The result is technology that navigates complex urban environments with intelligence, precision and natural flow, unlocking meaningful advances in both safety and efficiency. We believe autonomy represents a once in a generation transformation in how people and goods move, comparable to the shift from horses to cars, and from human driven vehicles to intelligent machines. Our ambition is to make autonomy universal. Wayve's mapless and hardware agnostic AI platform integrates with global OEM partners, enabling continuous software evolution and unlocking advanced levels of automation from L2 plus through to L4 as our core AI model scales. In a race increasingly defined by intelligence and real world learning, Wayve is taking a distinct approach, building a generalisable driving intelligence that can power any vehicle, anywhere. By combining embodied AI with scalable deployment, we are creating technology that can be shaped to each OEM brand and driver experience, accelerating the transition to a safer, more intelligent future of mobility. How we work 💻- Locations & Flexible Working: Our main hubs are in London, Sunnyvale, Yokohama, Herzliya, Vancouver and Leonberg. We operate a hybrid working model that combines in-person collaboration in our dedicated office spaces with focused time working remotely. This gives our teams the connection and energy of working together, alongside the flexibility to do their best work in a way that fits their lives. 🔍 The Interview Process: Our process is clear and respectful of your time: Initial call (45 mins) Competency Interviews (Sourcing; 30 mins) Deep-dive technical interviews (Cross-function; 1.5 hours ) Final interview : mission & values alignment (30 mins). We'll always explain the format and work around your availability. What's in it for you (Location dependant): 💰 Salaries benchmarked against the market annually ✅ Hybrid working, core hours and the chance to work hands on in vehicle workshops and labs 📚 Learning and development budgets with support for training, conferences and growth 🩺 Comprehensive benefits including health insurance, dental, enhanced maternity and paternity leave, retirement or pension where applicable, access to therapists, wellbeing partnerships, team socials and more A quick, honest note before you apply. Wayve is not a mature, fully-structured place with the playbook already written. Much of how we work is still being written, and if you join, you'll help write it. That suits people who want real ownership more than people who need a settled structure from day one. If that sounds like the kind of problem you want to spend your time on, we'd really like to hear from you. At Wayve we're committed to creating a diverse, fair and respectful culture that is inclusive of everyone based on their unique skills and perspectives, and regardless of sex, race, religion or belief, ethnic or national origin, disability, age, citizenship, marital, domestic or civil partnership status, sexual orientation, gender identity, veteran status, pregnancy or related condition (including breastfeeding) or any other basis as protected by applicable law. For more information visit Careers at Wayve. To learn more about what drives us, visit Values at Wayve DISCLAIMER: We will not ask about marriage or pregnancy, care responsibilities or disabilities in any of our job adverts or interviews. However, we do look to capture information about care responsibilities, and disabilities among other diversity information as part of an optional DEI Monitoring form to help us identify areas of improvement in our hiring process and ensure that the process is inclusive and non-discriminatory. Find more English Speaking Jobs in United Kingdom on Arbeitnow

About the job Turn product intent into the technical work that moves AI compute forward. As a Technical Product Owner, you will help component-based software teams deliver clear, prioritised and meaningful outcomes. You will connect product intent, engineering delivery and cross-team coordination. Your work will support software that spans bare metal silicon through to the machine learning tools stack. You will make complex systems easier to plan, explain and deliver. You will own component backlogs, shape roadmaps, refine epics and stories, and support sprint and PI planning. You will also surface dependencies, risks and trade-offs early. This role suits someone who brings calm, clarity and momentum to technical teams. You will help engineers focus on the work that matters most. The team and culture You will work with component-based software teams across Graphcore's engineering organisation. These teams build across the full AI compute stack, from silicon-level software to ML tools. Work happens through clear planning, practical discussion and fast feedback. You will help teams visualise progress, involve the right people and make delivery risks visible early. Decisions are shaped by product outcomes, technical evidence and team insight. You will encourage open challenge, protect focus and enable empowered decision-making. What we're looking for · Experience working as a Product Owner, or in a similar agile role. · Strong backlog management, refinement and roadmap development skills. · Ability to communicate clearly with technical and non-technical stakeholders. · Confidence working with technical teams, complex systems and cross-team dependencies. · Strong facilitation skills, with the ability to guide discussions to clear outcomes. · Strategic mindset, with empathy and the ability to bring calm, clarity and support. While we have outlined a set of requirements, we value transferable skills and diverse experiences. If you meet most of our essential criteria, we encourage you to submit an application and showcase how your background makes you a strong candidate. Benefits · Unlimited annual leave · Up to 5% matched pension · Phantom equity – share in Graphcore's success · True flexibility in how and where you work · Office spaces designed for collaboration · Free food and an on-site barista · Health cash plan · Income protection · Life assurance · Along with other benefits you can choose from (private medical insurance, dental plan etc) We welcome people from all backgrounds and experiences and are committed to building an inclusive environment where everyone can do their best work. We're an equal opportunity employer and recognise that everyone brings different strengths and perspectives. If you need any adjustments during the interview process, just let us know - we're happy to support you. Join the Team at Graphcore Graphcore is one of the world's leading innovators in Artificial Intelligence compute. It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry. As part of the SoftBank Group, Graphcore is a member of an elite family of companies responsible for some of the world's most transformative technologies. Together, they share a bold vision: to enable Artificial Super Intelligence and ensure its benefits are accessible to everyone. Graphcore's teams are drawn from diverse backgrounds and bring a broad range of skills and perspectives. A melting pot of AI research specialists, silicon designers, software engineers and systems architects, Graphcore brings together deep expertise to solve complex problems and deliver meaningful progress in AI compute. If you want to bring clarity and momentum to the teams building Graphcore's AI compute stack, we'd love to hear from you. Apply now to be part of the journey. Find Jobs in United Kingdom on Arbeitnow

As a Senior Machine Learning Platform Engineer (m/f/d), you will design and build the platform that turns large-scale UxV and sensor data into validated, reproducible machine learning models. You will own and improve the end-to-end ML lifecycle—from data processing, selection, and annotation through distributed model training, experiment tracking and validation. Your work will enable ML engineers to develop autonomy and perception capabilities efficiently, reliably, and at scale. Beyond conventional platform engineering, you will also apply modern AI models to our internal data workflows. This may include semantic dataset search, automated metadata generation, data curation, and auto-labeling using foundation and multimodal models. By creating the foundations on which our AI teams build and validate models, you will directly contribute to Quantum Systems' next generation of autonomous UxV solutions. What is your Day to Day Mission: Design, implement, and operate scalable ML and data pipelines covering ingestion, dataset creation, training, and model validation. Build a reliable ML platform for reproducible experimentation and training across local, on-premises, and cloud GPU infrastructure. Develop efficient systems for large-scale multimodal datasets, including imagery, LiDAR, odometry, ground truth, and simulation data. Establish dataset and model versioning, metadata management, quality checks, and traceability from raw sensor data to validated model artifacts. Build and optimize distributed training workflows, job scheduling, GPU resource allocation, caching, and high-throughput data access. Develop AI-powered tools for internal data engineering, including semantic data search, metadata enrichment, automatic annotation, and quality assessment using foundation or multimodal models. Improve platform reliability, observability, security, cost efficiency, and developer experience. Collaborate with ML, data, and engineering teams to translate their technical needs into scalable platform capabilities. Mentor engineers, contribute to architectural decisions, and establish engineering standards for production-grade ML systems. What you bring to the team: You hold a degree in Computer Science, Artificial Intelligence, Data Engineering, or a related technical discipline. You have strong software engineering skills in Python and experience building reliable, maintainable software and automated workflows for data-intensive machine learning systems. You have several years of hands-on experience building production ML platforms, MLOps systems, or large-scale data and training pipelines. Solid knowledge of machine learning fundamentals and hands-on experience training and evaluating ML models. You have a deep understanding of the ML lifecycle, including dataset preparation, distributed training, experiment management, model validation, and reproducibility. You have experience with cloud platforms and containerized infrastructure using Docker and Kubernetes. You have worked with workflow orchestration, experiment tracking, and model or artifact management technologies such as Argo Workflows, Kubeflow, Metaflow, Airflow, MLflow, or comparable solutions. You have practical experience with large datasets, object and shared storage, data formats, partitioning or sharding strategies, and high-throughput data loading. You are familiar with CI/CD, infrastructure as code, monitoring, logging, access control, and operating reliable production systems. You communicate confidently in English and collaborate effectively across research, product, and infrastructure teams. You are highly self-motivated and take technical ownership from architecture through operation. Why Quantum-Systems: We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus. We are industry pioneers who are ambitious, bold, and visionary. We push limits, think outside-the-box and strive for technological excellence to shape the future of aerial data. We promise to be your runway for individual and professional growth. Our benefits: Company pension scheme: We support you so that you can already make provisions for later. Flexible working hours: With trust-based working hours, you are not only responsible for your working hours, but also for your work-life balance. Mobile Work: If things get a little busy in the office, you have the option to work remotely one flexible day per week to create the right balance. Stay active: With EGYM Wellpass, you get access to thousands of fitness and sports facilities — and of course, we subsidize the membership. Bike-Leasing: We support you in staying environmentally mobile and healthy. Corporate Benefits: Your opportunity for attractive offers and discounts from well-known suppliers and brands, e.g. Adidas, Apple, Expedia. Employee events: We not only want to grow together, but also celebrate our successes together. Lunch-Card: Be powerful with delicious energy, daily lunch budget is sponsored. Company Shuttle: Enjoy our convenient shuttle service that picks you up from Laim in Munich and brings you to our location, with return trips at the end of the workday. About us: Quantum Systems is a leading European deep-tech company for unmanned systems across air, land and maritime domains. We develop and scale integrated hardware, software and AI-powered solutions for mission-critical operations. By combining autonomous platforms with intelligent software and AI, Quantum Systems enables customers to operate, understand and act across domains. Our commitment: We are an open-minded company that not only values diversity, but actively promotes it. Regardless of gender, age, ethnic origin, religion, sexual orientation or disability, we firmly believe that the diversity of our employees is an essential part of our success. At our company, every voice is heard and every perspective is valued. We believe that our differences enrich us and help us to find creative solutions and generate innovative ideas. We pride ourselves on creating an inclusive work environment where all employees can reach their full potential. Find more English Speaking Jobs in Germany on Arbeitnow

Brief info about Vinted Our mission is to make second-hand the first choice, and we're looking for people who want to help us get there. Every day, we work together to help our members buy and sell pre-loved clothing and lifestyle items, giving each piece a second life – or even a third. The Vinted Group is made up of three business units that support this mission: Vinted Marketplace is Europe's leading platform for second-hand fashion and a go-to destination for all kinds of pre-loved items, with a growing range of categories. Our platform connects millions of members across 20+ markets, helping great items find a new life. Vinted Go enhances the shipping experience with a vast network of over 500,000 pick-up and drop-off points, partnering with more than 60 carriers across Europe, with added services like item verification for peace of mind on high-value pieces. Vinted Pay is the newest part of the Vinted Group, dedicated to bringing secure, reliable payments to buyers and sellers across Europe. Seamlessly integrated into the Vinted app, it helps keep every transaction safe, efficient, and easy for our members. Founded in 2008 in Lithuania, Vinted began as a way for friends to find new homes for clothes they no longer needed. In 2019, we became Lithuania's first unicorn! Today, our headquarters remain in Vilnius, and we've grown with offices across Europe, supported by a team of over 2,000 people. Information about the position The Buyer Domain at Vinted is dedicated to creating a seamless, delightful, and highly engaging experience for our members as they search, discover, and purchase items. Our challenge is unique: unlike standard e-commerce, our peer-to-peer catalog consists of hundreds of millions of entirely unique, single-inventory listings, with millions of new items uploaded daily. Connecting the right buyer with the perfect item in real-time is at the very core of Vinted's success. To tackle this challenge at scale, we are looking to bring talented Data Scientists into the Buyer Domain's two highly specialized, ML-focused teams: Search Relevance: This team is responsible for the retrieval and ranking systems that power search queries across all markets. Their mission is to ensure our members can effortlessly find exactly what they are looking for in Vinted's vast, unique catalog. The team's ownership and focus areas include multi-stage search ranking pipelines, query intent classification, semantic dense retrieval, and the integration of ML relevance models with content policy controls, all optimized for real-time execution. Recommender Relevance: This team owns the Recommender System that powers Vinted's Homepage Feed and which is responsible for driving a significant portion of all discoveries and purchases across the platform. Their mission is to inspire our members by surfacing highly personalized, engaging, and relevant recommendations. The team's ownership and focus areas include deep sequence-based user modeling, real-time candidate generation and ranking, and exploration of diverse member interests, built to handle massive scale and high-throughput constraints. We will work with you to match your background, technical interests, and experience with the team where you can drive the most impact. Regardless of the team you join, you will be a proactive product partner. We work in a highly collaborative culture to align on technical approaches, and we validate all changes through rigorous offline evaluation and online A/B testing on our custom-built, in-house Experimentation platform. In this position, you'll Build and optimize end-to-end machine learning models for retrieval, ranking, and personalization (e.g. gradient boosting, two-tower architectures, sequence models, and neural rerankers). Partner closely with platform and software engineers to serve models directly in our search and recommendation engines, optimizing for high throughput and millisecond-level latency budgets. Lead or contribute to collaborative design proposals for new modeling approaches, features, or training pipelines. Define tracking requirements, perform offline evaluations, and design and analyze online A/B tests to measure real-world business impact. Collaborate with Data, Engineering and Product stakeholders to identify product opportunities, translate business problems into ML objectives, and align on technical trade-offs. Share knowledge, participate in peer reviews, and actively contribute to the growth and development of other scientists in the ML Guild and the Data Science & Analytics function. About you We are looking for Data Scientists who strike a balance between deep technical curiosity and practical business impact, engineers who are passionate about making second-hand fashion highly discoverable. A strong collaborator with hands-on experience designing, training, and deploying machine learning models in a production environment (ideally within search, recommendations, or large-scale personalization). High proficiency in Python and SQL. Experience with deep learning frameworks and gradient boosting libraries. Solid understanding of modern information retrieval, Learning-to-Rank (LTR), semantic search, or sequence-based user preference modeling. Experience or strong interest in high-performance model serving. Familiarity with search/vector engines like Vespa or Elasticsearch, and serving frameworks like Triton, is a plus. Comfort working with massive datasets in modern cloud-based data warehouses. Strong grasp of statistics, offline evaluation metrics, and online A/B testing methodologies. Work perks The opportunity to benefit from our share options programme 30 days of paid annual leave Newest MacBook models Confidential Employee Assistance Program (EAP) for you and your family Home office support: we provide IT workstation equipment and a personal budget of up to €540 for home workplace furniture Lunch benefit per your workday Frequent team-building events A personal monthly budget for shopping on Vinted Access to a discounted gym membership plan Pension Plan with Vinted matching 150% of your chosen contribution Supplemental Private Health Insurance Life and Disability insurance A subsidised Deutschlandticket for your commute to the office by public transport The opportunity to spend up to 90 days per year - 21 of which can be spent working outside of the EU - on workation A dog-friendly office Working at Vinted Individual Learning Budget We invest in your professional growth! As part of our commitment to continuous learning, we offer an annual learning budget to support your personal and career development through courses, certifications, workshops and more. Hybrid Work We've adopted a hybrid workplace model where 2 days in the office are recommended but not enforced. It's up to you and your team to decide on the exact days you'll spend working together in person. Equal Opportunity The Vinted Group is committed to building an inclusive workplace where people from all walks of life feel a sense of belonging. We welcome applications from people of all backgrounds, identities and life experiences. At Vinted, all applicants are treated fairly without regard to their race, age, religion or belief, sex, national origin, citizenship, gender identity, sexual orientation, disability, or any other protected characteristic. The annual gross salary range for this position is: €61.200 — €100.100 EUR Find more English Speaking Jobs in Germany on Arbeitnow

Automatically cataloging more than 2 billion offers from over 50,000 online shops is a complex challenge that requires intelligent and scalable machine learning solutions. At idealo, our team working on offer recognition and catalog association is responsible for this process, which forms a central part of our price comparison platform. We develop and apply modern machine learning methods, explore the potential of Large Language Models and agentic AI systems, and ensure our ML systems operate reliably and at scale in the cloud. From researching and evaluating new approaches to MLOps and production-ready ML systems, we combine scientific research with real-world engineering challenges. As part of your Bachelor's or Master's thesis, you'll have the opportunity to contribute your own ideas, experiment with emerging technologies, and explore machine learning solutions using real-world e-commerce data. You'll be supported by experienced software engineers with academic backgrounds and extensive experience supervising scientific research projects. This gives you the chance to connect academic research with practical challenges at one of Germany's largest price comparison platforms. About your new role AI Agents: You research and develop agentic AI systems for automatically recognizing, processing, and cataloging product offers. Foundation Models: You explore how Foundation Models and Large Language Models can be applied to product classification in e-commerce. Machine Learning Development: You develop ML solutions in Python using frameworks and technologies such as PyTorch, AWS Strands, and AWS Bedrock in a cloud-based environment. Scientific Research: You investigate current scientific approaches, develop your own ideas, and evaluate them using real-world datasets and use cases. Practical Application: You explore how your approaches can improve automated offer cataloging while considering the requirements of scalable, production-ready ML systems. Skills & Requirements You are studying Computer Science, Computer Engineering, Data Science, Mathematics, Information Technology, or a related STEM field, ideally with a focus on Machine Learning or Artificial Intelligence. You are enrolled at a German university, will remain enrolled for at least another 12 months, and can arrange academic supervision for your thesis at your university. You have a solid theoretical understanding of Machine Learning and Deep Learning, along with good Python programming skills and experience with libraries such as scikit-learn, pandas, NumPy, or PyTorch. You take ownership and independently drive topics forward. You enjoy tackling challenges actively and solving them pragmatically. At idealo you can expect You want to further your education? We take your personal development goals seriously and, in addition to our idealo Learning Hub, eLearning offerings (e.g., Udemy), coaching & mediation, we also offer you the opportunity to benefit individually from additional learning and development budget. And what about the office? Our office in the heart of Berlin offers free organic breakfast, excellent free lunch (vegan and vegetarian), as well as free coffee, lemonades and after-work beer, in addition to the "standard foosball". It also has a fabulous rooftop terrace with view of the whole of berlin where you can network with colleagues from our group of companies. In need of additional support in any areas of your life? We offer free counseling and support in all areas of life (professional, private, family, health, etc.) in cooperation with the pme-Familienservice . You want full flexibility on your way to work and beyond? No problem with a job bike or Deutschlandticket - and it's environmentally friendly, too! Want to keep yourself fit? We offer many different fitness and sports options, such as an Urban Sports or Gympass membership, to suit your personal needs. And what else is there? Of course, success must be celebrated! In addition to team events, you can also expect big company events and other moments of organized connection with others in the company and your team throughout the year! #LI-MR1 Find Jobs in Germany on Arbeitnow

This is a unique opportunity to lead the development of the software that makes our rockets fly. We are looking for a highly capable Lead Flight Software Engineer to own the architecture, development, verification, and integration of software across the vehicle and ground segment. From low-level embedded software controlling propulsion systems and flight hardware to flight-computer routines, telemetry, telecommand, and ground-support infrastructure, your work will be critical to launch success. You will provide technical leadership while remaining hands-on across the software stack and supporting real hardware campaigns. About us We're a Germany-based rocketry startup currently in stealth mode, scaling up rapidly to meet the demand for high-performance, reliable, and scalable solid propulsion technologies for space and defense applications. We are already launching suborbital and ballistic rockets on a regular basis, generating significant revenue and applying our knowledge toward the development of an orbital rocket. We are working hard to build something truly spectacular. To thrive here you will need to be comfortable working at pace, with the autonomy to make decisions and execute on them quickly. If you're excited by hard technical challenges and want a role where you will make a real difference each day to the future of the company, we may be the place for you. At our company, job titles and career progression are earned, not determined by years of experience alone. They reflect the responsibility you take on and the dedication you bring to each project. If you're ready to rise to the challenge, we'd love to hear from you. Key responsibilities Own the technical direction and architecture of the flight-software platform across embedded, real-time, and ground-segment systems. Lead the development of deterministic software for propulsion systems, flight computers, avionics, sensors, and other vehicle hardware. Define software requirements, interfaces, design documentation, development standards, and verification strategies. Develop and maintain ground software, embedded test tools, telemetry and telecommand processing, and data-distribution systems. Work closely with avionics, propulsion, systems, and AIT teams to integrate, test, debug, and validate software on real hardware. Provide technical leadership through design reviews, code reviews, mentoring, and software support during vehicle and test campaigns. What we are looking for Significant professional experience developing embedded, flight, or real-time software for aerospace, defence, robotics, automotive, or another safety-critical hardware environment. High proficiency in C or C++ for resource-constrained and real-time systems. Direct experience with real-time operating systems, embedded Linux, or comparable low-level software environments. Strong understanding of hardware interfaces, network programming, TCP/IP, UDP, and data serialisation. A disciplined approach to deterministic execution, fault handling, testing, debugging, and software verification. A degree in computer science, aerospace engineering, electrical engineering, robotics, or a related discipline; equivalent practical experience may also be relevant. Desirable experience Flight software for launch vehicles, spacecraft, aircraft, missiles, or other complex aerospace systems. Hardware abstraction layers, board-support packages, low-level drivers, avionics interfaces, or flight-computer development. Telemetry and telecommand systems, packet processing, data buses, ground stations, or mission-control software. Hardware-in-the-loop, software-in-the-loop, automated testing, or formal verification and validation. Python or similar languages for test automation, tooling, data analysis, and ground-support software. Supporting live hardware campaigns, launch operations, static-fire tests, or vehicle integration activities. Benefits and important information: We offer top-decile compensation packages, bonuses and meaningful equity, to attract exceptional aerospace talent. Every employee is awarded stock options in the company, you will directly benefit from your own hard work and success. Comprehensive relocation support including flights, shipping and visas. Lunch, dinner and drinks provided everyday Free access to shared company housing Please note, we are a fast paced, hyper-scaling startup. You will need to be comfortable working extended hours with high levels of autonomy, ownership, and flexibility, with contracts structured around a 48-hour working week. We are committed to building an equitable and inclusive workplace where everyone feels valued, has equal access to opportunity, and can thrive. We welcome different perspectives, backgrounds, and experiences—and believe our differences make us stronger. Please submit applications in English Find more English Speaking Jobs in Germany on Arbeitnow

Headquarters: Remote (US) At Current At Current, we partner with ambitious brands to create digital experiences that drive meaningful business results. By bringing together strategy, design, production, and technology, we help organizations solve complex challenges and build experiences that create lasting impact. We're looking for a Senior Engineer (.NET) to build scalable, high-quality digital experiences across websites, platforms, and applications. You'll collaborate closely with strategists, designers, producers, and fellow engineers to deliver thoughtful technical solutions while contributing to architecture, code quality, and engineering best practices. What You'll Do Develop, maintain, and optimize web applications and digital experiences across multiple client engagements Write clean, scalable, and well-documented code using modern .NET technologies and JavaScript Contribute to technical architecture, solution design, and implementation planning Translate designs into responsive, accessible, and performant user experiences Build reusable components and integrate websites with CMS platforms Develop and integrate RESTful APIs and third-party services Collaborate with cross-functional teams to deliver high-quality solutions that meet business and technical requirements Participate in code reviews and contribute to engineering standards and best practices Provide accurate estimates, project updates, and technical guidance throughout delivery Test features across front-end and back-end systems before deployment Stay current with emerging technologies and share knowledge with the engineering team What You'll Bring 5–7 years of software or web development experience, ideally within an agency, consulting, or fast-paced product environment Strong experience building applications with C# and modern .NET Proficiency with JavaScript and modern front-end frameworks such as React or Angular Experience working with CMS platforms and custom web applications Strong understanding of RESTful APIs, system integrations, and service-oriented architecture Experience with Microsoft SQL Server and cloud platforms such as AWS Solid understanding of HTML, CSS, JavaScript, responsive design, accessibility, and web performance best practices Experience using Git, pull requests, and modern CI/CD workflows Strong problem-solving skills with the ability to work independently while collaborating across disciplines Excellent communication skills and the ability to manage multiple priorities in a fast-paced environment Nice to Have Experience with Umbraco CMS Experience with AI-assisted development tools and workflows Experience contributing to technical architecture and mentoring other engineers Familiarity with Node.js and modern full-stack development practices Tools Required C# .NET Core JavaScript HTML5 CSS3 Git Microsoft SQL Server AWS Preferred React Angular Umbraco CMS Node.js AI-assisted development tools (Claude, GitHub Copilot, or similar) Why Current At Current, you'll work alongside talented strategists, designers, producers, and engineers to build digital experiences that make a meaningful impact for our clients. We're a remote-first agency that values collaboration, craftsmanship, curiosity, and continuous learning. You'll have the opportunity to contribute across a variety of industries while helping shape the technical quality and evolution of our engineering practice. This is a temporary-to-permanent opportunity . The role will begin as a hourly position, with the opportunity to transition into a full-time employee based on business needs and individual performance. The target hourly compensation range for the temporary portion of this role is $50.00 - $60.00 per hour . If converted to full-time, the target range of base compensation for this role is $100,000 - $120,000 annually . Actual compensation is influenced by a wide array of factors, including but not limited to skill set, level of experience, and location. To apply: https://weworkremotely.com/remote-jobs/current-senior-engineer-net

About tonies: tonies is the world's leading interactive audio platform for children, with over 12 million Tonieboxes and 165 million Tonies sold globally. Our intuitive, screen-free system empowers children to learn and play independently in a safe and engaging way. With a presence in over 100 countries and a diverse portfolio of ~1,500 Tonies across multiple languages, we continue to redefine how children experience storytelling and learning. Since our IPO in 2021, our global team of 630+ colleagues is united by a shared mission: shaping the future of play, learning, and imagination. You as part of tonies: Do you want to develop a product that is used worldwide? Do you have high standards for continuous discovery, usability and clean code? Do you challenge decisions and ideas against current requirements to ensure continuous improvement? If you answered "YES!" to these questions, we want to talk to you! As a Senior Backend Engineer (m/f/d) you will join a talented product team dedicated to developing and maintaining the Toniecloud IoT services. Your focus will be on continuous discovery, usability, quality and security, ensuring a top-tier experience for our millions of users worldwide. In the IoT and Control stream, you will play a central role in ensuring the seamless integration of our IoT products. You will empower our users by providing them with intuitive tools to set up and customize their devices to suit their unique needs. Your tasks and responsibilities will include: You take charge of developing and maintaining our Toniecloud IoT services, ensuring they meet the needs of millions of users Play a key role in our Toniecloud ecosystem, which includes: A robust django backend platform offering RESTful and GraphQL APIs An IoT messaging stack that processes technical diagnostic data from millions of Tonieboxes around the globe Maintain our commitment to reliability, ensuring our services are available 24/7, 365 days a year, and helping us achieve our 99,99% SLA Collaborate within a cross-functional, stream-aligned team, where you'll champion technical excellence to deliver seamless, always-on services. You'll also work closely with the Product Manager and team members to ensure a fantastic user experience within the app (enabling parents to set up and configure their Tonieboxes and Tonies, enabling unlimited joy for our little listeners) What we are looking for: You have been a passionate software engineer for many years and are excited to continue improving your skills Track record in building or maintaining backends for IoT products You are fluent in at least two programming languages, one of them is Python – and you can quickly adapt to new languages when needed Experience with Django is essential Your code is lean, well-structured and easy to understand. You avoid unnecessary complexity from the outset and have a knack for solving complex problems with simple solutions You are familiar with database systems (ideally PostgreSQL) and use ORMs thoughtfully and efficiently Linux is your preferred environment and working with Git and GitLab is part of your daily routine Your work style is characterized by agility, teamwork, independence and creativity, especially when exploring new solutions You place great importance on automated tests, CI/CD, and observability APIs (REST or GraphQL) are like your native language You are comfortable communicating in English in a professional work environment You must be currently based in Germany. Last but not least: you are enthusiastic about our product and want to join us on our exciting journey! Why tonies? Global Teamwork: We collaborate across departmental and country borders on our vision to bring the Toniebox into every child's room in the world. Come as you are: This applies not only to the dress code but also to everything else. Because only where you truly feel comfortable can you give your best. Mobility : Choose the option that suits you best – a Deutschlandticket (public transport ticket) for unlimited mobility, a monthly contribution for an office parking space, a leasing bicycle, or a remote work subsidy. Enhanced Security: Benefit from subsidies for company pension plans, occupational pension schemes, and occupational disability insurance. Rest & Time Off: Enjoy 30 days of paid annual leave plus three additional days off such as Rosenmontag, Christmas Eve, and New Year's Eve. After one year of employment, you can also use up to 10 "toniecation days" (unpaid leave days). Continuous Learning : Benefit from our internal and external training opportunities as well as an individual learning budget to continuously expand your knowledge. Language Learning & Relaxation: Improve your communication skills with the language learning app Babbel and find relaxation through our access to the meditation app Calm. Discounts: Benefit from attractive discounts on our entire range of tonies products. Good to know: As part of our principles, we are committed to supporting inclusion and diversity at tonies. We actively celebrate our colleagues' different abilities, ethnicities, faith and gender. Everyone is welcome and supported in their development at all stages in their journey with us. We look forward to hearing from you! Florina Varga Senior Talent Acquisition Manager Find more English Speaking Jobs in Germany on Arbeitnow

Auterion builds a cutting-edge operating system for autonomous robotic systems that empower a diverse range of platforms to perform surveillance, reconnaissance, inspection, mapping and logistics tasks. Our industry-leading software drives the adoption of robotic fleets and is recognized by the U.S. government as the future standard for its drone programs. We are looking for a Senior Embedded Performance Engineer who is passionate about getting the most out of embedded systems — from low-level Linux tuning and hardware integration to high-performance video and data pipelines. This role is ideal for someone who enjoys working close to hardware, moving across the stack, and solving the kinds of problems where milliseconds, bandwidth, startup time, and system efficiency matter. You will work across the AuterionOS ecosystem on topics such as: Embedded Linux performance and system tuning Low-latency video streaming and media pipelines C/C++, Python, and Bash-based platform development Hardware integration, system profiling, and end-to-end optimization Collaboration with experienced and driven engineers across Auterion Responsibilities Work within the Apps & Simulation team and collaborate with other development teams to build high-performance products for autonomous systems. Design, optimize, and maintain performance-critical components within AuterionOS, Auterion's custom embedded Linux distribution. Improve end-to-end system behavior across compute, networking, video, and hardware interfaces, with a strong focus on latency, throughput, reliability, and resource efficiency. Analyze and optimize demanding workloads such as real-time telemetry, video streaming, media processing, and communication between distributed system components. Investigate system bottlenecks across the full stack, from kernel and OS behavior to application-level code and tooling. Collaborate with engineering and product teams to understand both internal and customer use cases, and translate them into robust technical solutions. Propose and implement new platform capabilities with a strong emphasis on measurable performance gains in real-world deployments. Participate in daily stand-ups, release planning, and prioritization discussions. Qualifications and Skills B.Sc. or M.Sc. in Computer Science, Software Engineering, or a related field. 5+ years of professional experience writing object-oriented C++ and/or Python. Deep experience with embedded Linux systems, including cross-compilation, debugging, profiling, and performance tuning. Strong hands-on background in diagnosing and optimizing real-world system behavior, including CPU, memory, I/O, networking, boot time, and application latency. Experience building or optimizing low-latency video or data-streaming pipelines, ideally on embedded platforms. Excellent understanding of software systems that span embedded devices, higher-level applications, and fully integrated products. Strong software engineering fundamentals, including system design, implementation, debugging, and testing. Experience with video codecs, GStreamer, RTP/RTSP, or hardware-accelerated media pipelines. Solid experience with Debian/Ubuntu-based systems, Bash scripting, and systemd. Experience with Docker and docker-compose in complex development and deployment environments, as well as qemu. Strong debugging and performance analysis skills at both system and application level, combined with a proactive and self-directed working style. Proficient in ROS2/DDS-style middleware and experienced with networking across multiple OSI layers, including REST APIs and performance-sensitive communication paths. Experience with system integration and interfacing sensors or peripherals, especially via USB and Ethernet. Experience working in an agile engineering environment with stand-ups, sprint planning, and shared ownership across teams. Bonus: Experience with build systems such as CMake, including improving build performance in large-scale software projects. Benefits Flexible working hours Stock Options Generous holiday allowance Company pension plan Car parking Enhanced maternity & paternity leave Mental health and wellbeing support Learning and development opportunities About Auterion We are building the leading software platform for AI-powered autonomous systems for enterprise and government customers. Our team is supporting the most important missions and solving the most challenging problems. At Auterion, we bring together the sharpest minds who love to solve the hardest problems. Join a vibrant team built on innovation, openness, and excellence, where you'll be empowered to develop ideas, collaborate across all levels, and make an impact that matters. Find more English Speaking Jobs in Switzerland on Arbeitnow