Find Your Dream Career

Hi, we're Back Market. We're here to help make tech reliable, affordable, and better than new . We're a global marketplace for refurbished devices, helping lower our collective environmental impact by providing trustworthy, affordable tech with 92% less carbon emissions than new. Yep, you read that right. Turns out refurbished tech is way better for the planet than new. In fact, With every device purchased on Back Market, our positive impact on the planet grows. From our Customer Care representatives to our software engineer, every individual at Back Market cuts the planet — and consumers — a break. Our mission is simple: to do more with what we already have. Are you ready to join us? The performance marketing team drives targeted traffic to the website and the App in order to generate measurable results and maximize return on investment (ROI) . Specifically, the team focuses on designing and executing campaigns that drive user acquisition through various digital channels. Be a part of the movement. Join the circular revolution. YOUR MISSION (IF YOU ACCEPT IT): 🥇 Look into ways to help your affiliate partners do better and suggest improvements. Take care of a group of partners, keeping everything organized. Support in creating promotional materials with our internal studio for the partners. Talk with your partners to make sure everyone agrees on marketing plans and check how these plans are working. Collaborate with other teams to ensure consistency in messaging. Help with everyday tasks to support the team that handles the affiliate partners. YOU ARE IN THE RIGHT PLACE IF: ⭐ Good networking and business development skills Familiarity with fundamental marketing and media principles. Interested in customer acquisition and paid advertising. Competency with Excel or Google Sheets. Interested in learning new things with a growth approach. Excellent communication and organizational skills. You're fluent in French and English (Both are Mandatory!) . ABOUT THE INTERNSHIP ℹ️ Starting date: January 2027 Duration: 6 months Schedule: Full-time (35H/week - Monday to Friday) Location: Paris, France Contract: Internship agreement provided by your French school is required RECRUITMENT PROCESS: 📅 Technical Interview with the direct manager (45min) Cultural fit Interview with another person in the team (30min) Video-call Interview with the Talent Acquisition Specialist (30min) WHY SHOULD YOU JOIN US ? ✌🏼 At Back Market, we're committed to hiring and supporting diverse teams of people from all backgrounds, experiences, and perspectives — it's one of the reasons we're such a high-scoring certified B Corp company (93.2). No matter your role and seniority level, you'll enjoy impact-driven work with hands-on career development in an innovative, driven, and fast-paced environment — with benefits to match, like: - A mission driven work environment where your day to day makes an impact on the planet. Seriously. - Hybrid work environment, with 2 remote days a week and 1 remote work week per quarter, plus 3 flex days. - Employee Resource Groups, including mentorship programs, comprehensive accessibility policies, and cultural competency training. At Back Market, we strive to create a workplace that embodies the world we're trying to change. We've embedded our diversity, equity, and inclusion principles into our DNA — from dedicated staff to employee resource groups to our company values. We know that the perfect background for a role doesn't mean the perfect fit — we encourage you to apply for a role even if you think you may not have all the qualifications. If reasonable accommodations are needed for the interview process, please do not hesitate to discuss this with the Talent Acquisition Team. Compensation: €1.2K – €1.4K per month • €1.2K – €1.4K per month Find more English Speaking Jobs in France on Arbeitnow

Company Description We're Checkout.com . You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we're behind many of the digital experiences you use every day. We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers. Whether you want to book a holiday, order food, renew a subscription, or check out online, there's a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale. If you want to do career-defining work, you've come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact. With 20 offices across six continents and London as our HQ, we're shaping the future of fintech – and we're just getting started. Global payments are complex and ever-evolving. At Checkout our software engineers develop the next-generation payments technologies that enable our Merchants to boost their acceptance rates, cut processing costs, fight fraud, and create cutting edge technology that enables extraordinary customer experiences. We're looking for Software engineers who bring fresh ideas, have a curious nature and are passionate about working in an Engineering environment which focuses on building products to achieve the company's strategic goals. You'll get to work with teams from across Checkout.com 's portfolio of products and services who all have a real customer first philosophy. As a Software engineer, you will lead and drive specific projects critical to Checkout's needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display exceptional leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward. With your technical expertise you will lead project priorities, deadlines, and deliverables. You will design, develop, test, deploy, maintain, and enhance software solutions. What are we looking for: Bachelor's or Master's degree in Computer Science, Engineering, or related field Proficiency in C# .NET, Java, or Go, with a strong understanding of software development principles in either a backend or full stack environment. Great communication skills and ability to interact effectively with a wide range of stakeholders Experience working in agile environments and delivering high-quality code within tight deadlines Excellent problem-solving skills and the ability to work independently as well as part of a team Someone who is AI proficient or AI curious, you will be hungry to embrace what the latest technology has to offer to enhance yours and your teams productivity Payments or financial knowledge is a plus, but not a necessity How you'll make an impact Be part of, and collaborate with, cross-functional teams including product management, across a large engineering community. Define and design loosely coupled, scalable systems in a wider microservices using industry best practices. Stay up-to-date, use, and spread knowledge of the latest technologies used by Checkout. Write clean, maintainable, extendable and testable code on some of Checkout's most impactful systems. Build, own and operate your systems to the highest levels of resilience and service. Mentor junior team members and assist in their technical development Additional Information Bring all of you to work We create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one. Here, you'll move fast, take on meaningful challenges, and be recognized for the impact you deliver. It's a place where ambition gets met with opportunity, and where your growth is in your hands. We work as one team, and we back each other to succeed. So whatever your background or identity, if you're ready to grow and make a difference, you'll be right at home here. It's important we set you up for success and make our process as accessible as possible. So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable. Life at Checkout.com We understand that work is just one part of your life. Our hybrid working model offers flexibility, with three days per week in the office to support collaboration and connection. Curious about what it's like to be part of our team? Visit our Careers Page to learn more about our culture, open roles, and what drives us. For a closer look at daily life at Checkout.com , follow us on LinkedIn and Instagram Find more English Speaking Jobs in France on Arbeitnow

About the Role We are seeking a highly skilled Commodity Pricing Engine Developer to design, build, and enhance a bespoke pricing engine that generates real-time prices for client RFQ (Request for Quote) workflows. The ideal candidate will have deep expertise in commodity derivatives pricing, quantitative model development, and software engineering, with a strong focus on delivering accurate and low-latency pricing solutions in trading environments. Key Responsibilities Design, develop, and maintain pricing models for commodity and OTC derivatives products. Build, calibrate, and validate quantitative pricing models to ensure accuracy and robustness. Develop and enhance a bespoke pricing engine for RFQ quote generation. Integrate pricing models with market data feeds, trading platforms, and RFQ systems. Optimize pricing calculations for real-time performance and low-latency execution. Collaborate with traders, quants, and technology teams to translate business requirements into scalable solutions. Conduct model testing, performance analysis, and continuous improvements. Ensure compliance with model governance, validation standards, and risk management frameworks. Support production deployments and troubleshoot pricing-related issues. Required Skills & Experience Strong experience in Commodity Derivatives or OTC Derivatives Pricing. Proven expertise in Quantitative Development, including model creation, calibration, and validation. Deep understanding of financial mathematics and derivatives valuation techniques. Strong software engineering skills with proficiency in: Python C++ Java Similar object-oriented programming languages Experience integrating pricing systems with market data and trading platforms. Strong problem-solving and analytical skills. Ability to work effectively in a fast-paced trading environment. Preferred Qualifications Experience building real-time pricing engines within electronic trading (e-Trading) environments. Knowledge of Bloomberg market data integration. Experience with messaging technologies and connectivity frameworks. Familiarity with distributed systems and high-performance computing concepts. Understanding of commodity markets, trading workflows, and risk management processes. Find Jobs in United Kingdom on Arbeitnow

About Airwallex Airwallex is the AI-native financial operating system for a real-time, intelligent economy. More than 675,000 businesses, including McLaren Racing, Qantas, SHEIN, and TikTok, use us, directly or through our platform partners, to run their financial operations or build and monetize financial products of their own. We started in Melbourne in 2015 to build the infrastructure global commerce runs on. We're the regulated backbone behind global payments: not by accident, but by design. A decade plus, 85+ licenses, and a financial infrastructure spanning North America, Europe, the Middle East, and Asia-Pacific. We're co-headquartered in San Francisco and Singapore, with more than 2,300 people across 27 offices. We hire builders with founder-level energy, people who move fast with good judgment, dig in with real curiosity, and make calls from first principles rather than waiting to be told what to do. Read our operating principles to see it in full. Hiring Location: London (Hybrid Mode) Total Compensation: 140,000 to 200,000 GBP How you'll make impact The Founders' Lab turns ambitious, ambiguous ideas into financial products that can be tested with real users. You'll combine software engineering and product judgement to move from executive vision to working software quickly, with ownership across the full product lifecycle. Partner directly with the CEO and global leadership to turn strategic visions and disruptive AI capabilities into functional, market-ready financial software in weeks, not quarters. Shape product direction by synthesising business requirements, regulatory realities, user needs and emerging technology. You won't just build to a specification — you'll help define what to build and why. Run rapid proofs of concept, deploy products to live users, test market fit and balance fast iteration with sound technical foundations. Deliver end-to-end solutions across the stack, from backend architecture and API design through to frontend polish, putting useful products in the hands of global users. Build clean, maintainable software from ambiguous executive direction, with complete end-to-end ownership across both product and engineering. You'll work from our London office three days a week. What we're looking for Essentials 6+ years of software engineering experience, with a strong foundation in backend architecture and the ability to work confidently across the full stack when needed. A track record of personally shipping products from scratch in a high-growth startup, corporate innovation lab or greenfield environment. Strong product and commercial judgement, with the ability to challenge assumptions and evaluate technical decisions through the lens of user experience and business impact. A pragmatic, resourceful approach to problem-solving, with a track record of finding creative paths around institutional and technical roadblocks. Comfort working with high ambiguity and translating high-level strategic or executive direction into clean, maintainable software. Preferred Experience building software that uses generative AI, large language models or intelligent workflow automation. Experience in fintech, payments, compliance or money-movement infrastructure. Experience as a startup founder, founding engineer or technical lead of a rapid-prototyping team. You'll thrive here if You own the outcome and you don't wait for permission to fix what's broken. You're comfortable with ambiguity. Give you a problem, not a prescription, and you'll run with it. You default to action. You'd rather course-correct in motion than wait for perfect clarity. You're not precious about your ideas. You push hard for what you believe in, but you pivot fast when the data says otherwise. You value in-person collaboration and are happy being in the office three days a week. Learn more about your team The Founders' Lab is Airwallex's elite internal innovation hub. Operating like an agile startup backed by our global network, we partner directly with our CEO and Co-Founder to architect, build, and ship next-generation Fintech AI Innovations and 0-to-1 product lines. We don't build in isolation, nor do we over-engineer for theoretical problems. Our mandate is high-velocity validation: we take raw, ambitious, and ambiguous concepts from the executive suite, build the MVP, and deploy it onto our global financial infrastructure to test with real users. We look for High-Agency Builders. There are no layers of middle management or rigid ticketing queues here. You will hold complete end-to-end technical and product ownership—wearing the hat of a Product Manager to define the what and the why, and acting as a lead engineer to build the how. Applicant Safety Policy: Fraud and Third-Party Recruiters To protect you from recruitment scams, please be aware that Airwallex will not ask for bank details, sensitive ID numbers (i.e. passport), or any form of payment during the application or interview process. All official communication will come from an @ airwallex.com email address. Please apply only through careers.airwallex.com or our official LinkedIn page. Airwallex does not accept unsolicited resumes from search firms/recruiters. Airwallex will not pay any fees to search firms/recruiters if a candidate is submitted by a search firm/recruiter unless an agreement has been entered into with respect to specific open position(s). Search firms/recruiters submitting resumes to Airwallex on an unsolicited basis shall be deemed to accept this condition, regardless of any other provision to the contrary. Equal opportunity Airwallex is proud to be an equal opportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don't regard color, religion, race, national origin, sexual orientation, ancestry, citizenship, sex, marital or family status, disability, gender, or any other legally protected status when making our hiring decisions. If you have a disability or special need that requires accommodation, please let us know. Compensation: £74,822 – £138,955 • Offers Equity • Offers Bonus • Base salary £74,822 – £138,955 • Offers Equity • Offers Bonus Find more English Speaking Jobs in United Kingdom on Arbeitnow

About Us: Fireworks is the platform for specialized intelligence, enabling companies to build, train, and serve AI models tailored to their own data, workflows, and products. Founded by the team behind PyTorch and backed by AMD, Atreides, Benchmark Capital, Index Ventures, Lightspeed, NVIDIA, Sequoia Capital, and TCV, Fireworks powers production AI with hundreds of state-of-the-art open models across text, image, embedding, audio, and multimodal workloads. Today, Fireworks is a Series D company valued at $17.5 billion, bringing together an ambitious, collaborative team that's building the future of enterprise AI. The Role: As a Member of Technical Staff on the EMEA field team, you build on top of one of the largest inference platforms in the world. The work spans the stack: capabilities on top of inference and serving, tooling around fine-tuning and post-training of LLMs, and the product our region's customers need that the core platform team will not take on. You are first and foremost an excellent software engineer; that is what we are testing for. You prefer building product to being customer-facing, and that is exactly right for this role, though you are welcome to join customer work when it interests you. Treat this as a flexible role: a bucket for exceptional builders at different levels of experience rather than a fixed job spec. There is no specific seniority requirement; anywhere from 3 to 10 years of experience can fit. What we value most is first principles thinking: reasoning about unfamiliar problems from the ground up rather than from playbooks. You will be evaluated on this directly in the interview process, and strength here can outweigh gaps elsewhere in your background. Key Responsibilities: Build: Design and ship product capabilities end to end, from ambiguous need to running in production. Build on Inference: Create capabilities on top of the serving stack: routing, model controls, observability, and whatever a deployment turns out to need. Build on Training: Ship tooling around fine-tuning and post-training of LLMs, from data pipelines to evaluation, working alongside our applied ML engineers. Own Regional Capability: Turn EMEA-specific requirements into product, working with core platform where the line is unclear. Engineering Quality: Set the engineering bar for the regional team; your code is the reference. Agentic Development: Use coding agents and AI tooling as a core part of how you build, with judgment about when to trust the output. Optional Customer Work: Join deployments or customer conversations when useful or interesting; never required. Minimum Qualifications: First principles and critical thinking: the ability to break down novel problems and reason to a solution without a reference implementation. This is the primary interview signal and can outweigh other qualifications. Excellent software engineering: depth in backend systems and infrastructure, and a track record of shipping production systems you owned. Strong coding skills in Python and at least one systems language. Fluent in AI-assisted and agentic engineering: uses coding agents and AI tooling as a core part of how you build, and knows when to trust the output and when not to. Genuine interest in inference and AI infrastructure. Why Fireworks? Solve Hard Problems: Tackle challenges at the forefront of AI infrastructure, from low-latency inference to scalable model serving. Build What's Next: Work with bleeding-edge technology that impacts how businesses and developers harness AI globally. Ownership & Impact: Join a fast-growing, passionate team where your work directly shapes the future of AI—no bureaucracy, just results. Learn from the Best: Collaborate with world-class engineers and AI researchers who thrive on curiosity and innovation. Fireworks AI is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all innovators. Find more English Speaking Jobs in United Kingdom on Arbeitnow

About Swap Swap is the infrastructure behind modern agentic commerce. The only AI-native platform connecting backend operations with a forward-thinking storefront experience. Built for brands that want to sell anything - anywhere, Swap centralises global operations, powers intelligent workflows, and unlocks margin-protecting decisions with real-time data and capability. Our products span cross-border, tax, returns, demand planning, and our next-generation agentic storefront, giving merchants full transparency and the ability to act with confidence. At Swap, we're building a culture that values clarity, creativity, and shared ownership as we redefine how global commerce works. About the role Our agentic storefront is an AI shopping experience that helps shoppers discover, decide, and buy through natural conversation. As a Staff Software Engineer, you'll be a technical leader on the team building it. You'll set direction for several engineering teams, take on the hardest cross-cutting problems, and stay hands-on in the code that matters most. You'll work closely with Product, Design, Data, and engineering leadership to turn ambitious goals into practical plans, and you'll help the engineers around you do their best work. Responsibilities Lead large initiatives that run for several quarters and involve multiple teams, from first scoping through to production. Write exemplar code in critical paths, setting the implementation bar for the wider group. Review important designs from other teams, helping engineers balance quality, speed, reliability, and long-term maintainability. Define and uphold operational standards for the group: monitoring, availability, scalability, security, release safety, and cost awareness. Help lead serious incidents and follow through on the right fixes. Lead tool evaluations and architecture migrations, making build-vs-buy trade-offs explicit. Use AI well beyond the basics, and push back on AI-generated complexity so code health holds as we speed up. Own the business result of your work. Define success metrics, monitor after launch, and challenge constructively when something won't move the needle for merchants. Mentor Senior Engineers and below, and lead or join senior-level interviews. Write and improve the documentation others rely on, such as architecture direction, decision records, and runbooks. Requirements Significant experience (typically 8+ years) building and shipping production software, with a record of leading complex initiatives that cross team lines. Deep expertise in TypeScript/JavaScript and Node.js, including architecting REST and/or GraphQL APIs and distributed systems. Comfort outside your home language and stack. We expect Staff engineers to be T-shaped. Strong relational database, data modelling, and SQL skills, plus familiarity with NoSQL. Experience designing for reliability and scale in the cloud, with solid CI/CD, observability, and incident-response practices. Hands-on experience with LLMs or agentic systems, or a track record of picking up new technology fast and applying it sensibly. Daily use of AI coding tools, with a sense for when to trust them and when not to. Experience in eCommerce systems and platforms is preferred. Excellent written and verbal communication. You can explain trade-offs in business terms to any audience. A team player with a bias for ownership: you bring a solution along with the problem, and work isn't done until it's live and stable. What we offer 💰 Competitive base salary: Pay that reflects your experience and the impact you'll have, reviewed regularly as you grow with us. 📈 Stock options: Own a piece of what we're building. As a high-growth scale-up, you'll share in the upside as the company grows. 🏖️ Generous PTO: Competitive annual leave, with public holidays on top, plus your birthday off so you can celebrate properly. 🏥 Private healthcare: Comprehensive private medical cover, so you can get the care you need quickly. 🏦 Pension contributions: Company contributions to help you build long-term financial security. 🧘 Wellness benefits: Support for your physical health and wellbeing, so you can look after yourself in the way that works for you. 💚 Mental health support: Access to mental health resources and support, because looking after your mind matters as much as your body. 👶 Enhanced maternity and paternity leave: Extra support when you're growing your family, so you can focus on what matters most. 🏡 Flexible working: Choose how and where you do your best work, with the trust and autonomy to manage your own time. ✈️ Work abroad for 4 weeks a year: Take your laptop somewhere new for up to four weeks each year, whether that's family, travel, or a change of scenery. 🎉 Quarterly team offsite budget: A dedicated budget each quarter for your team to get together, connect, and have fun. 🍻 Thursday happy hour: Wind down the week with your colleagues at our Thursday happy hour, held across all of our locations. 🥞 Breakfast Mondays: Start the week with a good meal and good company. Diversity & Equal Opportunities: We embrace diversity and equality in a serious way. We are committed to building a team with a variety of backgrounds, skills, and views. The more inclusive we are, the better our work will be. Creating a culture of equality isn't just the right thing to do; it's also the smart thing. Find Jobs in United Kingdom on Arbeitnow

The Solution architect for Enterprise Modernization in Europe is a senior subject matter expert responsible for technical excellence, solution integrity, and capability development within the service line. This hands-on role leads high-impact client engagements, contributes to pre-sales and solution design, and ensures the regional adoption and evolution of service-specific delivery frameworks, tools, and best practices. The role brings deep expertise in modernization strategies and execution in large legacy systems modernization programs, serving as a trusted technical advisor to both clients and internal teams. This role is key to ensuring delivery quality, enabling service adoption, and evolving the technical maturity of the offering. Job responsibilities Provides technical guidance on Enterprise Systems Modernization. Supports delivery teams in solving complex client problems. Contributes to solution design, proposals, and pre-sales activities. Develops and refines service accelerators and reference architectures. Mentors engineers and architects within the service domain. Acts as a bridge between delivery teams and global service development. Measures success by technical quality, asset adoption, and talent uplift. Requires 10+ years of experience in software engineering or technical consulting. Requires 3+ years in Enterprise Systems Modernization advisory. Focuses on technical depth in modernization strategies and enterprise solution architecture. Job qualifications Technical Skills Experience supporting solution design and technical delivery in complex enterprise environments. Proven ability to build, extend, and support delivery tools, frameworks, and reusable assets. Deep technical expertise in modernization strategies, cloud architecture, and platform thinking. Strong engineering skills, architecture patterns knowledge, and toolchain understanding. Excellent communication to translate technical insights into actionable business decisions. Collaborative with mentorship abilities and solution-oriented with asset contribution commitment. Professional Skills 10+ years in software engineering, platform delivery, or technical consulting roles. 3+ years in a subject matter expert or senior technical advisory role within Enterprise Systems Modernization. Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field. Certifications in relevant platforms, tools, or frameworks for the Enterprise Systems Modernization domain. Experience contributing to internal accelerators, open-source projects, or client-aligned IP development. Familiarity with enterprise transformation programs and the consulting delivery lifecycle. Other things to know Learning & Development There is no one-size-fits-all career path at Thoughtworks: however you want to develop your career is entirely up to you. But we also balance autonomy with the strength of our cultivation culture. This means your career is supported by interactive tools, numerous development programs and teammates who want to help you grow. We see value in helping each other be our best and that extends to empowering our employees in their career journeys. Responsible Use of AI in Recruitment At Thoughtworks, we use AI tools to support our recruitment team with administrative tasks such as drafting communications, scheduling interviews and writing job descriptions. Crucially, our AI tools do not screen, assess, rank or make hiring decisions. Every application is reviewed by our team and all selection decisions are made exclusively by our interviewers and hiring managers. We are committed to fairness and responsible AI. We actively manage our AI systems by testing, monitoring for biased outcomes and implementing mitigation measures. We hold our third-party vendors to these same high standards through a rigorous governance process. For additional information, please see our full Thoughtworks AI Policy for Recruitment . About Thoughtworks Thoughtworks is a dynamic and inclusive community of bright and supportive colleagues who are revolutionizing tech. As a leading technology consultancy, we're pushing boundaries through our purposeful and impactful work. For 30+ years, we've delivered extraordinary impact together with our clients by helping them solve complex business problems with technology as the differentiator. Bring your brilliant expertise and commitment for continuous learning to Thoughtworks. Together, let's be extraordinary. #LI-Hybrid See here our AI policy. Find more English Speaking Jobs in United Kingdom on Arbeitnow

Senior Software Engineer (Motorsport) DO YOU WANT TO WORK FOR THE WORLD LEADER IN ELITE SPORTS PERFORMANCE ANALYTICS? Catapult is a world leader in sports performance technology, serving over 5000 teams across 40 sports. We improve many of your favorite athletes' performances with our wearable tracking technology, video and data analysis systems, and athlete management products. Our technology offers objective solutions to sport-based challenges and can be found throughout the NFL, NHL, NBA, AFL, NRL, Premier League, Bundesliga, La Liga and many more. In Motorsport, Catapult's SBG race management and team strategy systems are the technology of choice for elite-level organisers and competitors around the world, including in Formula 1, Formula E, IndyCar, NASCAR, WEC/Le Mans and other worldwide endurance racing. Customers include the FIA (in F1, F2, F3, F1 Academy, FE and WEC), nine Formula 1 teams (including the 8-time World Champion Mercedes AMG Petronas F1 Team), the majority of Formula E teams, the winners of multiple Le Mans 24-hour races over the last 10 years (Audi, Porsche, and Toyota) and teams and organisers in both IndyCar and NASCAR. We have major offices in the UK (London and Leeds), USA (Boston) and Australia (Melbourne) as well as multiple smaller offices around the world. WE WANT PEOPLE WHO ARE PASSIONATE ABOUT SPORTS AND WANT TO WIN We are looking for a talented and enthusiastic Senior Software Engineer (Motorsport) to grow our Motorsport development team as we expand our RaceWatch products into new series and tackle new challenges. Based in London, you will be a key player in developing new capabilities in RaceWatch, particularly for Endurance racing strategy, but also contributing to the entire RaceWatch suite across different racing series. We believe that our customers deserve the best platform, and we are on a mission to maximise and enhance their performance through delivering the highest quality experience. As a Senior Software Engineer, you will help us drive our products and processes forward, as well as acting as a mentor and providing technical leadership to other team members. You will be able to excel in a fast-paced environment with short project timelines from conception to deployment. WHAT YOU'LL DO Lead the development of our RaceWatch software for one or more motorsport series. Work with product managers and customers to design features and prioritise tasks. Identify ways to add innovative new features to the software. Lead others to anticipate and meet customer needs. Be one of the technical leaders within the team. Design, build, and maintain efficient, reusable, and reliable code. Ensure code quality, organization, and best practices throughout the development process. Lead with a growth mindset, encouraging others to share ideas and opinions. Maintain and enhance software reliability. WHAT YOU'LL NEED A passion for Motorsport. 5+ years working in a fast-paced, technical environment, delivering software to customers. A proven track record of building applications in C/C++. Experience developing products, scaling them, and supporting them throughout the entire lifecycle. An aptitude for working with complex data. Strong interpersonal skills and an ability to communicate effectively with technical and non-technical staff, both internally and when speaking to customers. A willingness to go above and beyond for the customer. Ability to help cover live motorsport events at weekends on a rotational basis with the rest of the team. An ability to multi-task and thrive in a dynamic work environment with changing priorities. NICE TO HAVE Degree in computer science or other scientific or technical subject. Prior experience working in motorsport is a strong advantage. An understanding of the challenges faced by motorsport officials and teams in managing and participating in events. Experience using Catapult's RaceWatch software. Experience with ticketing and project management platforms, such as JIRA or Monday. Experience developing Windows applications in Visual Studio. Experience developing applications that process video. WHY CATAPULT? We have amazing people. We can promise you will work with some of the most ambitious and intelligent people in an exciting industry, and you will do some of the best work of your life. We encourage our people to have constructive, open and honest communication; to make Catapult extraordinary; innovate and create smart solutions; establish a collaborative, yet challenging, environment to develop our performance and the performance of our customers. Our workforce spans more than 20 countries so you'll have the opportunity to work across multiple nationalities and cultures. We value improvement and development. We are challenging ourselves to continuously grow and become a high-performance company. That means we maintain a growth mindset in everything we do, and our people are always looking for ways to do things better. There is unlimited opportunity to grow, do more, and do better. We care about you. We offer outstanding paid maternity and paternity leave. Whether you are interested in sports or not, you'll have the satisfaction of knowing your work is supporting some of the most successful teams, organisations and competitors on the planet! While we have access to many exciting opportunities, we also realize that we are here to do a very important job for our customers. As a result, we aim to work with purpose and intention. We look for people that fit into our team culture, those who actively contribute and individuals who are excited about what they do. In order to build the future of sports performance, we need the brightest talent. If you think you can contribute to the empowering, enjoyable and exciting Catapult environment, then we invite you to apply. All offers of employment are subject to Catapult's positive prehire check. To find out more, please contact the Talent Partner for this role. Find Jobs in United Kingdom on Arbeitnow

Why SDK Engineering at Langfuse Your work will have an outsized impact. Our SDKs are downloaded 26M+ times per month. When you ship a new integration or improve SDK performance, thousands of developers benefit the same day — and they'll tell you about it in GitHub issues, on Twitter, and in our community channels. Everything you build is open source (MIT-licensed) and immediately visible. The SDK is often the very first thing a developer touches when they try Langfuse, so your work directly shapes their first impression. You will also have direct exposure to how cutting-edge LLM-applications are built. The users you serve are some of the best and most ambitious software engineers in the world and that leverage Langfuse to improve their applications. Deeply understanding the problems they solve will help you design the best possible SDK experience and along the way makes you an expert on LLM engineering yourself. You will grow at Langfuse by Owning our SDKs . We maintain SDKs in Python and TypeScript both built on OpenTelemetry. You'll be responsible for their reliability, performance, and developer experience. These SDKs run inside our users' production systems, which means they must never fail, must have minimal impact on CPU and memory, and must work flawlessly across every environment — from serverless functions to long-running agent loops. You'll think deeply about the exposed interfaces, error handling, batching, async flushing, and graceful degradation. Designing APIs that developers love . How are functions named, how are parameters structured, how are breaking changes communicated, how does the documentation read? Developer experience is a core differentiator for Langfuse and you'll own every detail of it. When we shipped the Python SDK v3 and TypeScript SDK v4 , both were full rewrites on OpenTelemetry — that's the kind of thoughtful, high-impact SDK work you'll lead. Apart from tracing, we also support core workflows of engineers building with LLMs with our SDKs, see our Experiment Runner SDK for example. Integrating with every major AI framework : Langfuse integrates with 40+ frameworks and model providers: OpenAI SDK, Vercel AI SDK, AI SDK, LangChain, LlamaIndex, Pydantic AI, OpenAI Agents, CrewAI, Amazon Bedrock AgentCore, LiveKit, and many more. You'll maintain these integrations, ensure new Langfuse features are supported across all of them, and add new integrations as the ecosystem evolves. When a new framework gains traction, you'll be among the first to instrument it. Maintaining our OpenTelemetry endpoint : some users send traces directly to our OTLP endpoint instead of using our SDKs. You'll ensure this path is robust, well-documented, and supports the full range of Langfuse features. This also extends our language support to Java, Go, and any language with an OpenTelemetry SDK. You can work with the OpenTelemetry community to steer the GenAI conventions. Writing public documentation : you'll own the SDK docs, integration guides, and migration paths. At Langfuse, docs are part of our core product. When you ship a new SDK version or integration, the docs ship with it. What we're looking for Strong engineer who gets excited about developer experience, API design, and writing code that runs reliably in other people's production systems Experience building or maintaining SDKs, client libraries, or developer tools — ideally in Python and/or TypeScript Deep understanding of performance: you know how to profile, benchmark, and minimize CPU/memory overhead in hot paths Someone who can manage projects themselves — you know how to develop strong conviction about what to build and how to ship it Thoughtful about versioning, backwards compatibility, and migration paths Interest in open source software and genuine excitement about talking to developers about their integration challenges Thrives in a small, accountable team where your output is visible and matters CS or quantitative degree preferred Bonus points: Experience with OpenTelemetry internals or observability instrumentation Former founder or early startup experience Contributions to popular open source SDKs or developer tools ML/AI background or familiarity with the LLM framework ecosystem No candidate checks all boxes. If you feel you are a good fit for this role, please go ahead and apply. Learn more about SDK Overview — architecture and design of our Python and TypeScript SDKs All Integrations — the full list of frameworks, model providers, and gateways we support OpenTelemetry Integration — how we use OTEL as the foundation SDK Upgrade Paths — how we think about versioning and breaking changes Project you could have built: TypeScript SDK v4 (GA) Project you could have built: Python SDK v3 (GA) Our codebase: GitHub Repository Ben Kuhn on Impact, Agency and Taste Who we are & how we work Perks Flexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in over 25 countries. Healthcare - Employer contributions towards your healthcare. Equity in the company - Every new team member who joins our company receives stock options. Time off - Flexible time off in the US, generous entitlement in other countries. A USD$500 Home office setup if you're a remote employee. Global Gatherings – We believe in the power of in-person connection and offer opportunities to engage with colleagues at company-wide offsites. Culture - We All Shape It As part of a rapidly scaling start-up, you will be instrumental in shaping our culture. Are you interested in finding out more about our culture? Learn more about our values here . Check out our blog posts or follow us on LinkedIn to find out more about what's happening at ClickHouse. Equal Opportunity & Privacy ClickHouse provides equal employment opportunities to all employees and applicants and prohibits discrimination and harassment of any type based on factors such as race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Please see here for our Privacy Statement. Compensation: €90K – €160K • Offers Equity • Salary €90K – €160K • Offers Equity Find more English Speaking Jobs in Germany on Arbeitnow

Company Description We're Checkout.com . You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we're behind many of the digital experiences you use every day. We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers. Whether you want to book a holiday, order food, renew a subscription, or check out online, there's a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale. If you want to do career-defining work, you've come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact. With 20 offices across six continents and London as our HQ, we're shaping the future of fintech – and we're just getting started. The Role As part of Checkout.com 's #NextGen Graduate Program you'll work alongside experienced professionals, gaining hands-on experience and a comprehensive introduction to digital payments and technology. The program offers an extensive learning experience through technical training, professional development workshops, and direct access to industry experts. You'll be part of a global Early Careers, Graduate community, with regular networking events, mentoring opportunities, and social activities designed to build connections and accelerate your growth and leadership potential. By the end of the scheme, you'll be equipped with the knowledge, experience, and confidence to make a lasting impact at Checkout.com and beyond. How you'll make an impact Design, build, and maintain scalable, high-performing systems using best practices in a microservices architecture. Write clean, testable, and maintainable code for some of Checkout's most impactful platforms. Collaborate with cross-functional teams, including product management, to solve real-world business challenges. Stay up to date with emerging technologies and share your knowledge across the engineering community. Operate and own the resilience and performance of the systems you develop. Mentor and support peers while growing your own technical expertise. What we're looking for You're a curious, motivated, and innovative future engineer, either due to graduate in summer 2027 or having graduated within the last 12 months, who is excited to dive into the world of digital payments and technology. Here's what you'll bring to the team: A Bachelor's or Master's degree in Computer Science, Engineering, or a related field or relevant work experience in these fields. Proficiency in one or more programming languages (e.g. .NET C#, Java, Python, or Go), with an understanding of core software engineering principles. Strong communication skills and the ability to collaborate with diverse teams and stakeholders. Experience with or enthusiasm for working in agile environments and delivering high-quality code on tight deadlines. A passion for solving complex technical problems—independently and as part of a team. Payments or financial knowledge is a bonus, but not required. Why Join Us? Work on impactful projects alongside industry experts, tackling some of the most exciting challenges in fintech. Grow your skills in a dynamic, fast-paced environment where learning and development are a top priority. Join a diverse and supportive team that values innovation, collaboration, and excellence. Be part of a company shaping the future of digital payments on a global scale. Additional Information Bring all of you to work We create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one. Here, you'll move fast, take on meaningful challenges, and be recognized for the impact you deliver. It's a place where ambition gets met with opportunity, and where your growth is in your hands. We work as one team, and we back each other to succeed. So whatever your background or identity, if you're ready to grow and make a difference, you'll be right at home here. It's important we set you up for success and make our process as accessible as possible. So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable. Life at Checkout.com We understand that work is just one part of your life. Our hybrid working model offers flexibility, with three days per week in the office to support collaboration and connection. Curious about what it's like to be part of our team? Visit our Careers Page to learn more about our culture, open roles, and what drives us. For a closer look at daily life at Checkout.com , follow us on LinkedIn and Instagram Find Jobs in United Kingdom on Arbeitnow

Cambridge, UK | Full-time | Fixed-term, 10–12 weeks | Hybrid Salary: £30,000–£35,000 per annum, depending on experience, paid pro rata for the internship duration. About us Riverlane's mission is to master quantum error correction (QEC) and unlock a new age of human progress. From advances in material and climate science, to complex chemistry simulation for new drug design, quantum computers will help humanity solve some of its most important challenges. But without QEC, the industry's defining technical challenge, such breakthroughs can never be achieved. Riverlane is the world leader in QEC technology. QEC is a complex problem that requires a range of skills, talent and passion. Having raised more than $125M in funding to date to accelerate our cutting-edge R&D in quantum error correction (QEC), Riverlane partners with many of the world's leading quantum hardware providers and government agencies to make fault-tolerant quantum computing a reality. We're making remarkable progress and growing fast. About the role Our full-time summer internships give current students in technical fields the opportunity to apply their skills and expertise in an industrial setting. You will join us at our head office in Cambridge, UK, for 10 to 12 weeks, working alongside talented software and hardware engineers, mathematicians, quantum information theorists and physicists who are experts in their fields. You will have a dedicated supervisor and work on a project designed to make the best use of your existing skills while developing your knowledge of quantum computing and quantum error correction. We will support you in producing a meaningful piece of work that you can be proud of by the end of your internship. Previous interns have committed code to industry-standard open-source compilers, co-authored research papers and led the design of new software tools. What you will do Design, develop and test software that contributes to Riverlane's quantum error correction technology. Work closely with colleagues across software engineering, research and other technical disciplines Explore ideas, evaluate different approaches and contribute to technical problem-solving Communicate your work clearly through discussions, presentations and written reports Develop your understanding of quantum computers, quantum error correction and their potential applications What we need You must be a current student at the time of application, studying towards a Bachelor's degree (second year or later), Master's degree or PhD. You must be studying Computer Science, Software Engineering, Physics, Chemistry, Mathematics, Electronic Engineering or another related technical subject. Experience using at least one general-purpose programming language, demonstrated through coursework, personal projects or research. An understanding of core programming concepts, including data structures and algorithms. Strong analytical and problem-solving skills. Clear written and verbal communication skills. The ability to take initiative and work effectively as part of a team. An interest in applying your software skills to quantum computing; prior quantum computing knowledge or experience is not required. Availability to work full-time for 10–12 weeks. Even better if… You have experience with C++ or Python, the main languages you will use during the internship. You have experience writing tests, debugging code or using version control tools such as Git. You have developed software as part of a collaborative project. Important notes You must already have the right to work in the UK for the full duration of the internship. If you hold a UK student visa, please check that its conditions allow you to undertake this full-time internship. PhD students may need to temporarily step away from their PhD to complete the internship. This may affect their right-to-work status, and applicants should check their individual circumstances You must be available to work full-time for 10 to 12 weeks during the summer vacation period You will be required to sign an agreement assigning ownership of any intellectual property produced during your internship to Riverlane Internships are based at our head office in Cambridge, UK How to apply Please upload a CV and covering letter through our careers page. Your CV should include the grades you have received so far in your degree(s). Your covering letter should explain why you are applying for the software engineering internship and what skills and experience you would bring. Deadline Please submit your application by Friday 6 November 2026 . Interviews will be held in Cambridge, or virtually if required. What can you expect from us Alongside a competitive salary, we offer private medical insurance, a health cash plan and life assurance, as well many other benefits. You can also expect a diverse work environment that brings together experts in many fields (including software and hardware development, quantum information theory, physics and maths) and over 25 different nationalities. If you have any queries, please contact com . Please do not send your applications to this email address, all applications should be submitted via our careers page. Everyone is welcome at Riverlane. We are an equal opportunities employer and encourage applications from eligible and suitably qualified candidates regardless of age, disability, ethnicity, gender, gender reassignment, religion or belief, sexual orientation, marital or civil partnership status, or pregnancy and maternity/paternity. Women and other underrepresented groups may be less likely to apply for a role unless they meet all or nearly all of the requirements. If this applies to you, we still encourage you to apply - you may be a great fit, even if you don't meet every single qualification. We'd love to hear from you. If you need any adjustments made to the application or selection process so you can do your best, please let us know. We will be happy to help. GDPR notice: Riverlane collects and processes personal data in accordance with applicable data protection laws. If you are a European Job Applicant see the privacy notice for further details. Find Jobs in United Kingdom on Arbeitnow

CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage—domain dominance. The company's products are powered by Coherent Distributed Networks (CDN™), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats. CHAOS Industries was founded in 2022 and has raised a total of $1 billion in funding from leading investors, including 8VC, Accel, and Valor Equity Partners. The company is headquartered in Los Angeles, with offices in Washington, D.C., San Francisco, San Diego, Seattle, and London. For more information, please visit www.chaosinc.com . The Role You'll join a small, highly collaborative team working across London and San Francisco, building the software behind some of the world's most advanced radar systems. Working alongside software, hardware, and systems engineers, and the teams who take these systems into the field, you'll design the backend services, data pipelines, and operator-facing applications that turn raw sensor data into decisions people can act on. The systems you build must be reliable, resilient, secure, and performant - enabling operators to depend on them in the environments where they matter most. This is a high-ownership role where you'll influence architecture and help define the engineering foundations of a rapidly evolving platform. We're looking for engineers who enjoy scaling distributed systems and solving hard data problems. What You'll Build Backend Services - develop high-performance Python services that ingest, process, and distribute real-time sensor data with low latency, high reliability, and security at scale. Operator Interfaces - build and evolve the web applications operators use to monitor live missions and investigate what the sensors saw (TypeScript and React). Cloud Platform - design and build secure, scalable Azure services that power distributed radar systems, defining the infrastructure as code and instrumentation for the systems you own. Platform Architecture - help shape the technical direction of the platform, making architectural decisions that support new capabilities, increasing scale, and long-term maintainability. What We're Looking For We're looking for exceptional software engineers who are excited by solving hard technical problems and building systems that matter. You don't need experience with every technology we use - we value strong engineering fundamentals, curiosity, and the ability to learn quickly. You'll thrive in this role if you: Enjoy building scalable backend systems and taking ownership of production services. Enjoy solving complex distributed systems and real-time data challenges. Are eager to learn new technologies and adapt to new technical domains. Care deeply about reliability, security, and scalability. Get real leverage from AI coding tools, with a considered view on what to delegate to them and what not to. Communicate well and enjoy collaborating across teams. Are motivated by building technology with meaningful real-world impact. Requirements Right to work in the UK. Willingness to travel. You'll be based in our Soho office in London, but most of the team is in San Francisco - expect to co-locate there for around a week each quarter. Why CHAOS? Health Benefits: private medical, dental and vision benefits (for employees & dependents) will be 100% paid for by the company Additional benefits : 5% pension match Compensation Components: competitive base salaries, generous pre-IPO stock option grants, relocation assistance + (coming soon!) annual bonuses Team Growth: 350 employees and counting across 5 global offices The stated compensation range reflects only the targeted base compensation range and excludes additional earnings such as bonus, equity, and benefits. If your compensation requirements fall outside of the range, we still encourage you to apply. The salary range for this role is an estimate based on a range of compensation factors, inclusive of base salary only. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. Recruiting Agencies: CHAOS Industries does not accept unsolicited resumes or outreach. Unsolicited submissions will not be reviewed or compensated. #LI-onsite Find Jobs in United Kingdom on Arbeitnow