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As a Senior System Test & Validation Engineer at Optics11, you are responsible for defining and driving system-level verification and validation for complex multidisciplinary products. You develop a strong understanding of the product, customer use cases, system architecture, operating environment, and technical risks, and translate these into effective validation strategies, test setups, and test campaigns. The systems you validate combine sensing hardware, embedded software, Edge computing, networking, cloud software, data processing, algorithms, and customer-facing applications. Your role is therefore focused on validating the complete system and ensuring that critical customer workflows work reliably before release. You work closely with Product, Systems Engineering, Software, Embedded, Hardware, Algorithms, Operations, Manufacturing, and other IVVQ engineers. This is a senior hands-on individual contributor role, combining system-level thinking, test design, technical investigation, and practical validation. Qualifications BSc or MSc in Systems Engineering, Electrical Engineering, Software Engineering, Embedded Systems, Physics, or a related technical discipline. 7+ years of relevant experience in system testing, verification & validation, integration testing, or product qualification. Experience validating complex multidisciplinary products combining hardware and software. Strong understanding of system-level test strategy, risk-based testing, requirements verification, and product qualification. Experience translating requirements and customer use cases into practical validation approaches. Experience designing system test setups and representative test environments. Strong troubleshooting and root-cause analysis skills across subsystem boundaries. Working knowledge of Linux and networking. Experience with automated testing, CI/CD, and modern engineering workflows. Experience with requirements traceability and verification evidence. Strong communication skills in English and a collaborative working style. Eligible for required EU/NATO/security screening or clearance, where applicable. Nice to have Python experience for test automation, analysis, or tooling. Hardware-in-the-Loop or automated system-level testing experience. Experience with Edge systems, Docker, or cloud-connected products. Experience with environmental, reliability, lifetime, or mechanical testing. Experience with industrial sensing, condition monitoring, photonics, energy systems, or similar technologies. Experience with FAT, commissioning, or field validation. Experience with requirements-management tools such as Jira, Polarion. Why Join Us? Join one of Europe's most promising deep-tech scale-ups. Work on complex multidisciplinary products combining photonics, hardware, software, cloud, and algorithms. Shape how system-level validation is done within a growing R&D organization. Competitive salary and benefits package. Regular team activities, company events, and fresh team lunches. Find more English Speaking Jobs in Netherlands on Arbeitnow

As a Senior Embedded Software Test Engineer at Optics11, you own the embedded software system-test capability for our sensing interrogator platforms. You define, automate, execute, and continuously improve Hardware-in-the-Loop (HIL) and box-level integration and regression testing so that software and firmware release candidates are qualified on representative hardware before they move downstream to formal verification, FAT (Factory Acceptance Test), field, or application validation. Your scope covers the integrated behavior of embedded Linux applications and services, internal and external APIs, hardware interfaces, firmware and FPGA interactions, system control, calibration and configuration, diagnostics, data acquisition, boot and update behavior, recovery mechanisms, and sensor interfaces. You build and maintain automated test frameworks, HIL benches, test harnesses, CI/CD integration, and objective release evidence that make product behavior repeatable, observable, and measurable. You are part of the Sensing Platform Team and work closely with Embedded Software, FPGA/Firmware, Electronics, Photonics, Architects, Product System Engineering, Product Integration, Verification & Validation, Lifecycle Engineering, application/software teams, and external development partners. The primary ownership of this role is integrated interrogator/HIL system-level testing and release qualification. It complements developer-owned unit and component testing and does not replace independent formal verification, compliance, environmental, or end-to-end application validation performed downstream. Key Responsibilities: HIL & System-Level Test Development Own the interrogator/HIL test strategy, system-level regression suite, and embedded software/firmware release qualification approach for the Sensing Platform. Translate product, software, firmware, and interface requirements into test plans, acceptance criteria, coverage objectives, and automated regression tests. Design, build, and maintain HIL test setups using representative hardware, simulated or real sensor inputs, and remotely controlled lab equipment. Develop maintainable Python-based test automation for device control, test orchestration, data capture, analysis, and reporting. Integrate hardware-based regression testing into CI/CD pipelines, enabling repeatable and largely automated testing of release candidates. Maintain traceability between requirements, test cases, defects, results, and release evidence. Release Qualification & Failure Analysis Qualify embedded software and firmware releases on representative interrogator hardware before downstream V&V, FAT, field, or application validation. Design and execute system, negative, stress, endurance, fault-injection, restart/recovery, upgrade/rollback, and robustness testing based on product risk. Analyze logs, system state, performance, timing, communication behavior, and data outputs to identify regressions and integration issues. Triage failures and support root-cause analysis across software, firmware, FPGA, electronics, photonics, sensors, and system interfaces. Reproduce field, production, and customer issues in laboratory/HIL environments and turn important failures into permanent regression coverage. Provide clear, evidence-based input on release readiness, known limitations, unresolved defects, and coverage gaps. Test Engineering & Technical Ownership Identify quality risks, missing coverage, weak observability, testability limitations, and failure scenarios, and drive practical improvements. Evaluate test frameworks, HIL architectures, simulation approaches, instrumentation, and automation solutions. Work with Software, Firmware/FPGA, Electronics, Photonics, Systems, Integration and V&V engineers to improve design-for-testability, interfaces, diagnostics, and acceptance criteria. Own significant HIL, system-test, and automation workstreams with minimal guidance, while keeping test environments, tooling, configurations, and documentation reliable and reproducible. Contribute to requirement, design, code, test-plan, and test-result reviews. Collaboration & Continuous Improvement Collaborate across multidisciplinary engineering teams to solve complex integration and product-quality issues. Communicate test results, quality risks, defects, dependencies, and release readiness clearly to technical stakeholders. Share knowledge and mentor peers in embedded software testing, HIL automation, failure analysis, and robust test design. Continuously improve automated coverage, CI/CD quality gates, test reporting, diagnostics, test-environment stability, and release processes. Reduce flaky, manual, and repetitive testing through reusable test assets and reliable automation. Why Join Us? Join one of Europe's most promising deep-tech scale-ups. Shape the future of a rapidly growing multidisciplinary R&D organization. Competitive salary and benefits package. Enjoy regular team activities and company events. Fresh team lunches provided every day. Qualifications: BSc or MSc in Computer Science, Software Engineering, Electrical Engineering, Embedded Systems, or related technical discipline. 5+ years of relevant experience in embedded software testing, embedded systems integration, test automation, HIL testing, software quality engineering, or related fields. Strong experience testing embedded products on physical hardware and integrated systems throughout the product-development lifecycle. Strong Python skills for test automation, tooling, laboratory equipment control, and analysis. Strong understanding of embedded Linux systems, Linux applications and services, software processes, networking, logging/diagnostics, and hardware/software interaction. Hands-on experience designing or maintaining automated test harnesses, HIL or system-level test environments, and regression suites for embedded products. Experience with automated test frameworks such as pytest, Robot Framework, or comparable tools; Git; Linux; Docker; and CI/CD systems such as GitLab CI, Jenkins, GitHub Actions, or similar. Experience testing software APIs, hardware interfaces, inter-process communication, system-control functionality, data acquisition, and integrated embedded-system behavior. Strong analytical skills and experience applying structured test design, defect triage, problem-solving, and root-cause analysis methods. Experience debugging complex issues across software, firmware, FPGA, electronics, and hardware boundaries using logs, traces, diagnostics, and laboratory equipment. Strong communication skills in English and the ability to explain technical findings and product-quality risks clearly to both technical and non-technical stakeholders. Eligible for required EU/NATO/security screening or clearance, where applicable to the role. Nice to have: Experience in multidisciplinary high-tech product development involving software, firmware, electronics, FPGA, photonics, sensing, manufacturing, or defense/security applications. Experience with laboratory automation and instrumentation, for example programmable power supplies, function generators, switching/multiplexing equipment, serial interfaces, oscilloscopes, logic analyzers, or LabVIEW-based setups. Experience with SIL, simulation, device emulation, or virtualized test environments that complement physical HIL testing. ISTQB, or comparable test certification, is a plus, but hands-on embedded test-engineering experience is more important. Experience designing fault-injection, endurance, recovery, power-cycle, upgrade/rollback, and robustness tests for embedded systems. Familiarity with systems engineering, product verification, requirement traceability, configuration management, and product lifecycle management processes. You'll be working with clients in the defense and security sectors, obtaining a Certificate of No Objection issued by the AIVD (Dutch General Intelligence and Security Service) is mandatory. This means you will need to undergo a security screening. For more information, please refer to details on security screening. Find Jobs in Netherlands on Arbeitnow

As a Senior Embedded Software Engineer at Optics11, you are responsible for the development and engineering realization of embedded software solutions throughout the product development lifecycle. You translate allocated product and subsystem requirements into robust software solutions that deliver reliable system functionality while supporting maintainability, testability, scalability, product integration, and long-term product reliability. The embedded software subsystem comprises the software running on our sensing interrogator platforms, including e mbedded Linux applications, hardware interfaces, internal APIs, system control, calibration functionality, diagnostics, data acquisition interfaces, and supporting software infrastructure. You apply specialist embedded software expertise to develop, improve, and mature subsystem solutions that contribute to successful product realization as part of multidisciplinary engineering teams. You work closely with Architects, Photonics, Electronics, FPGA development, Product Integration, Verification & Validation, Lifecycle Engineering, application/software teams, manufacturing, and other subsystem development teams to ensure embedded software solutions are successfully developed and realized as part of the overall product. Key Responsibilities: Develop and maintain embedded software solutions throughout the product development lifecycle. Translate product and subsystem requirements into reliable, maintainable, testable, and scalable software designs. Design, develop, and integrate embedded Linux applications, hardware interfaces, internal APIs, system control, calibration, diagnostics, and related software components. Take ownership of significant software workstreams and mature existing software stacks into reliable product-level solutions. Develop and maintain software testing, automation, CI/CD, diagnostics, and repeatable release processes. Support prototype development, system integration, verification, qualification, industrialization, and product release. Analyze system and software performance and troubleshoot complex issues across software, electronics, FPGA, photonics, and system interfaces. Identify technical risks, evaluate design alternatives, and contribute to architecture, design, and code reviews. Ensure software quality, reliability, security, and suitability for manufacturing, deployment, and long-term product support. Plan and deliver assigned work against agreed priorities and milestones, proactively communicating risks, dependencies, and technical debt. Collaborate across multidisciplinary engineering teams and provide technical guidance within your area of expertise. Share knowledge, lessons learned, and software best practices to strengthen team capability and continuously improve engineering ways of working. Why Join Us? Join one of Europe's most promising deep-tech scale-ups. Shape the future of a rapidly growing multidisciplinary R&D organization. Competitive salary and benefits package. Enjoy regular team activities and company events. Fresh team lunches provided every day. Qualifications: BSc or MSc in Computer Science, Software Engineering, Electrical Engineering, Embedded Systems, or related technical discipline. 5+ years of relevant experience in embedded Linux software development (userspace and/or BSP). Strong experience developing software for embedded products throughout the product development lifecycle. Strong C++ and/or Python development skills for Linux userspace applications and services. Strong understanding of embedded Linux, Linux application development, and hardware/software interaction. Experience with software architecture, interfaces, APIs, multithreading, inter-process communication, and hardware abstraction. Experience building and maintaining embedded Linux BSPs and images using PetaLinux, Yocto, or similar. Ability to debug and patch existing Linux kernel drivers, device tree, and boot/integration issues. Experience with Git, CMake, unit testing, code reviews, and modern software development practices. Experience developing automated tests and contributing to CI/CD environments; familiarity with Docker in embedded development. Experience with Python for automation, testing, analysis, or tooling. Strong analytical skills and experience applying structured problem-solving and root-cause analysis methods. Experience debugging complex issues across software and hardware boundaries. Strong communication skills in English and a collaborative working style. Eligible for required EU/NATO/security screening or clearance, where applicable to the role. Nice to have: Experience with Xilinx Zynq UltraScale+, heterogeneous SoCs, or comparable embedded Linux platforms. Experience interfacing Linux software with FPGA-based systems. Experience with real-time or high-throughput data acquisition and signal-processing systems. Hands-on Linux kernel work beyond fixes. Experience in multidisciplinary product development environments involving software, firmware, electronics, FPGA, or photonics. Experience supporting prototype development, manufacturing transfer, product releases, or industrialization activities. Familiarity with systems engineering, product verification, configuration management, and product lifecycle management processes. You'll be working with clients in the defense and security sectors, obtaining a Certificate of No Objection issued by the AIVD (Dutch General Intelligence and Security Service) is mandatory. This means you will need to undergo a security screening. For more information, please refer to details on security screening. Find Jobs in Netherlands on Arbeitnow

We are looking for a hands-on Software Test Engineer to ensure the quality and reliability of software solutions used in real-world sensing and data processing systems. Optics11 is a deep-tech company developing advanced fiber-optic sensing technologies for challenging environments and applications in energy and underwater security. Our systems enable high-performance sensing and monitoring through advanced photonics, signal processing, and data-driven intelligence. We are expanding our R&D team with a Software Test Engineer who is passionate about quality, structured validation, and delivering robust software in complex engineering environments. As a Software Test Engineer, you will be responsible for defining and executing practical software tests to validate software components (including algorithms, cloud back-end, and user interfaces) that process sensor signals generated by fiber-optic sensing systems. You will work closely with data scientists, signal processing specialists, back-end developers, and software architects to ensure that products meet functional and non-functional requirements. This role requires a hands-on professional with a proactive mindset, a structured approach to software testing, strong attention to detail, and the ability to understand complex technical systems and translate requirements into effective test strategies. Key Responsibilities Perform functional, integration, regression, system, and end-to-end testing across edge devices, cloud services, APIs, databases, and graphical user interfaces. Define test strategies, test plans, test cases, acceptance criteria, and automated test scripts for an edge and cloud software platforms. Identify, document, and track software defects, ensuring clear reproduction steps and proper follow-up. Collaborate with product owners, developers and engineers to understand system requirements and ensure test coverage. Contribute to the development and maintenance of automated test frameworks and pipelines. Test edge–cloud behaviour under interrupted connectivity, delayed or duplicated messages, device restarts, software updates, and synchronization failures. Validate software performance, reliability, and stability under different operating conditions. Support testing of software running on edge hardware, including hardware–software integration in laboratory and field environments. Analyse test results and provide clear, actionable feedback to development teams. Ensure traceability between requirements, test cases, and test results. Integrate automated tests into GitLab CI/CD pipelines and help define appropriate quality gates. Contribute to continuous improvement of testing processes, tools, and quality standards. Participate in release readiness reviews and ensure software meets quality benchmarks before deployment. Join one of Europe's most promising deep-tech scale-ups. Shape the future of a rapidly growing multidisciplinary R&D organization. Competitive salary and benefits package. Enjoy regular team activities and company events. Fresh team lunches provided 3 times/week. Requirements: Technical skills Familiarity with test management and bug tracking tools (e.g., Jira, TestRail). Programming or scripting skills (e.g., Python, C++, Javascript or similar). Experience developing automated tests using tools such as Pytest, Playwright, Cypress, Selenium, or comparable frameworks. Experience testing web-based graphical user interfaces. Experience testing REST APIs, back-end services, or distributed software components. Experience with Docker, AWS, Gitlab , Linux and CI/CD pipelines. Ability to design structured, maintainable, and reproducible automated tests. Familiarity with behaviour-driven development and Gherkin specifications. Qualifications: A degree in computer science, software engineering, embedded systems, or a related technical discipline or equivalent practical experience. Proven experience in software testing or quality assurance. Strong understanding of software testing methodologies and lifecycle. Experience with both exploratory/manual testing and automated testing. Experience testing integrated systems rather than only isolated software components. Proactive in identifying risks and gaps in requirements and investigating failures across multiple system components. Pragmatic and hands-on when working with hardware, software, test environments, and imperfect real-world data. Able to work independently while collaborating closely with different engineering disciplines. Able to communicate technical problems and quality risks clearly to both technical and non-technical stakeholders. Nice to Have: Experience with AWS or another cloud platform. Experience testing data-driven or signal-processing systems. Knowledge of embedded systems and hardware–software integration. Experience testing unreliable-network, offline, reconnection, synchronization, and recovery scenarios. Experience in high-tech, industrial, or defense-related environments. Experience with LabVIEW Security & Compliance: You'll be working with clients in the defense and security sectors, obtaining a Certificate of No Objection issued by the AIVD (Dutch General Intelligence and Security Service) is mandatory. This means you will need to undergo a security screening. For more information, please refer to details on security screening. Find Jobs in Netherlands on Arbeitnow

We are expanding our team with a Data & ML Infrastructure Engineer who will take ownership of the platform that enables data ingestion, processing, storage, and machine learning workflows across multiple products. Operating at the intersection of data science, software engineering, and cloud infrastructure, you will build the foundations and ensure that our ML systems are scalable, reproducible, and production ready. In this role, you will design, implement, and continuously improve a cloud-agnostic data and ML platform that supports multiple products and teams. You will be responsible for platform reliability, scalability, and cost-efficiency, while providing data scientists and ML engineers with the tools and infrastructure to efficiently develop, train, validate, and deploy machine learning models. You will serve as a technical bridge between the data science and IT/infrastructure teams, translating requirements into robust and maintainable systems. This role includes ownership of an existing vendor-delivered platform and its evolution into a fully automated, reproducible, and multi-product ML platform. Key Responsibilities: Design, implement, and maintain the data and ML platform infrastructure, including systems for data ingestion, storage, processing, and training. Ensure high availability, reliability, and uptime of the platform, as it is critical to the business value proposition. Maintain and evolve vendor-delivered platform components and ensure long-term maintainability and independence. Build and maintain data workflows, including tools for dataset versioning, experiment tracking, and model lifecycle management across multiple products. Enforce DevOps / MLOps practices, including CI/CD pipelines, Infrastructure-as-Code, and automated workflows. Develop cloud-agnostic and containerized solutions that can run across public and private cloud environments within EU constraints. Optimize data storage, lifecycle policies, and cost efficiency, including tiered storage and retention strategies. Implement and maintain monitoring and alerting systems (e.g., Prometheus, Grafana) for pipelines, infrastructure, and resource usage. Ensure data governance, security, and compliance, including access control, audit logging, and anonymization requirements. Collaborate closely with data scientists, ML engineers, and IT teams to deliver infrastructure that meets operational needs. Manage resource and cost controls, including budgets, approvals, and tracking. Contribute to documentation, operational runbooks, and onboarding materials for the platform. Why Join Us? Join one of Europe's most promising deep-tech scale-ups. Shape the future of a rapidly growing multidisciplinary R&D organization. Competitive salary and benefits package. Enjoy regular team activities and company events. Fresh team lunches provided3 times/ week. Required Qualifications: MSc or equivalent with 5+ years' industry experience in Computer Science, Data Engineering, Machine Learning, or a related field. Strong experience with data platforms, cloud infrastructure, and distributed systems (AWS, GCP, Azure). Proven experience with Infrastructure-as-Code (e.g., Terraform) and automated deployments. Experience with ML platforms and tools (MLflow, Feast, DVC, DataHub or equivalent). Experience with AWS Sagemaker or Google Vertex AI platforms. Experience with databases (MongoDB, PostgreSQL, InfluxDB or equivalent). Experience with message brokers and streaming systems (Kafka, RabbitMQ or equivalent). Hands-on experience with containerization (Docker/OCI) and orchestration (Kubernetes or similar). Experience with CI/CD systems (e.g., GitLab CI). Programming skills in Python. Experience with monitoring and observability tools (Prometheus, Grafana). Understanding of DevOps and MLOps practices. Ability to work across teams and translate requirements into scalable infrastructure solutions. Nice to Have: Knowledge of data governance, IAM, and security frameworks. Experience with cost optimization and resource management in cloud environments. Familiarity with multi-tenant or multi-product platform architectures. Experience working with EU data compliance constraints in energy, maritime or defense. Security & Compliance: You'll be working with clients in the defense and security sectors, obtaining a Certificate of No Objection issued by the AIVD (Dutch General Intelligence and Security Service) is mandatory. This means you will need to undergo a security screening. For more information, please refer to details on security screening. Find more English Speaking Jobs in Netherlands on Arbeitnow

Who We Are WPP Enterprise Solutions designs, builds, and operates the growth systems that competitive businesses rely on. In a world where Al is reshaping how companies drive growth, we lead clients in business transformation and marketing modernization, connecting strategy directly to execution. Our 12,000 experts in engineering and platforms, commerce, consulting, content transformation, CRM, and CX work within a unified global operating unit across 40+ markets. WPP Enterprise Solutions works alongside best-in-class partners including Adobe, AWS, Braze, Google, Microsoft, Salesforce, and Shopify, as well as innovators in AI, to deliver growth solutions tailored to the needs of our clients' businesses. VML, part of WPP, supports WPP Enterprise Solutions by helping brands activate transformation through creativity and experience. About the role WPP Enterprise Solutions in Amsterdam is the central hub for SEO and GEO expertise across the WPP network. From our team, we work with major national and international organisations on complex challenges across search, websites, digital platforms and AI-driven discovery. Our team currently consists of ten SEO and GEO specialists and is growing rapidly. We are therefore looking for a Senior Technical SEO Specialist to strengthen our technical capabilities. This is explicitly not a traditional SEO role with some technical SEO added on top. We are looking for someone who approaches SEO from a technical perspective. Someone who understands how websites, platforms, JavaScript frameworks, crawlers, rendering, APIs and search engines interact, and who can independently investigate and solve complex technical problems. You are comfortable working with SEO specialists, developers, solution architects, product teams and other technical stakeholders. You are able to go deep into the technology when needed, while also translating complex findings into clear priorities, recommendations and implementations for enterprise clients. What you will do As a Senior Technical SEO Specialist, you will be responsible for the technical quality and scalability of our SEO solutions. You will work on complex websites and digital ecosystems where standard SEO checklists are simply not enough. Your responsibilities will include: Conducting advanced technical SEO audits for large and complex websites, platforms and international domain structures. Analysing crawling, indexing and rendering to identify the root causes of technical SEO and indexation issues. Working with modern JavaScript frameworks and rendering architectures, including SSR, CSR, SSG and hybrid rendering. Analysing HTML, JavaScript, HTTP requests, response headers, status codes, redirects, canonicalisation and robots directives. Investigating and optimising crawl architecture, internal linking and information architecture for websites with hundreds of thousands or millions of URLs. Advising on complex technical challenges involving migrations, replatforming, URL structures, faceted navigation, pagination, internationalisation and hreflang. Performing log file analysis to understand how Googlebot and other crawlers interact with websites and to improve crawl efficiency. Developing scripts, tooling and automation that make recurring analyses faster, more reliable and more scalable. Reviewing technical solutions, specifications and implementations from an SEO perspective before they go live. Working closely with developers and engineering teams to translate SEO recommendations into clear technical requirements and tickets. The technical expertise we are looking for For this role, we are looking for someone whose technical capabilities go well beyond using standard SEO tools. You have a strong understanding of: HTML, CSS and JavaScript, and can independently analyse source code and identify technical issues. HTTP and web architecture, including requests and responses, status codes, caching, redirects, headers and CDN behaviour. JavaScript SEO and the implications of client-side and server-side rendering for crawling, rendering and indexing. Technical concepts such as SSR, CSR, SSG, hydration and dynamic rendering. Crawling and indexing, and how search engines technically process websites. txt, XML sitemaps, canonical tags, meta robots, X-Robots-Tag and other crawling and indexing directives. Structured data and Schema.org. Core Web Vitals and web performance. International websites, hreflang and complex multi-market architectures. Website and platform migrations. Crawl budget and scalable website architectures. You do not need to be a software engineer in every area. However, we do expect you to be comfortable reading code, manipulating data, working with APIs and building scripts or technical solutions when needed. What seniority means to us Being senior means more than being able to independently deliver a technical SEO audit. We expect you to be able to break down complex technical problems where there is no obvious answer. You combine experience, data and technical knowledge to define your own investigative approach and develop solutions that can realistically scale within enterprise organisations. You will also: Proactively improve the way we work, using tooling and AI to increase efficiency, quality and impact. Make significant improvements to our SEO guidelines, workflows and processes. Develop innovative solutions to complex SEO challenges, including algorithm changes, large-scale site architecture, crawling and automation. Build frameworks, templates, scripts and automations that can be adopted across multiple clients and projects. Independently develop new approaches for challenges where no standard solution exists. Think beyond what needs to change and consider how solutions can be technically and organisationally implemented at scale. Help other SEO specialists grow their technical capabilities. Act as a senior technical sparring partner for our clients. What you'll need: 10+ years of experience in Technical SEO, with a strong track record of solving complex technical SEO challenges for large-scale, international and/or enterprise websites. Currently based in the Netherlands and able to work from our WPP office in Amsterdam. Deep technical knowledge of how modern websites are built, crawled, rendered and indexed, including strong expertise in HTML, JavaScript, HTTP, web architecture and rendering technologies. Strong experience working with l arge and complex website architectures, including crawling and indexation, faceted navigation, internationalisation, migrations, internal linking and crawl budget optimisation. Experience with Python and/or JavaScript for scripting and automation is highly desirable, as is experience with SQL, BigQuery or comparable data environments. A proven ability to turn complex technical findings into clear, actionable recommendations for developers, product teams, architects and senior stakeholders. Experience developing scalable frameworks, tooling, templates or automations that can be applied across multiple clients or projects. An eager and proactive mindset, with a strong interest in exploring how AI, automation, emerging search technologies and GEO can improve both our work and our clients' performance. Fluent in English. Dutch is highly desirable. What we offer: We offer a competitive salary, a vibrant and collaborative culture and ample opportunities for professional growth. You'll be part of a global network of talent, working on projects that truly make an impact. Our compensation: A gross annual salary range of 80,000€ - 95,000€, based on experience level. Hybrid working flexibility. Access to learning platforms . Wellbeing initiatives including mental health support programs and wellness activities. Employee discounts and access to WPP/VML global benefits ecosystem. Participation in team events, agency gatherings and cross-discipline workshops. At WPP ES, we believe in investing in people who build long-term value for our clients and their customers. Your growth is part of our growth. About WPP WPP is the trusted growth partner for the world's leading brands. With exceptional talent, trusted data and intelligence and world-class partnerships – all united by our agentic marketing platform, WPP Open – we help clients navigate change, capture opportunity and deliver transformational growth. For more information, visit WPP.com . WPP (VML/WPP Enterprise Solutions) is an equal opportunity employer and considers applicants for all positions without discrimination or regard to characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers. When you click "Submit Application", this will send any information you add below to WPP (VML/WPP Enterprise Solutions). Before you do this, we think it's a good idea to read through our Recruitment Privacy Policy . California residents should read our California Recruitment Privacy Notice . This explains what we do with your personal data when you apply for a role with us, and, how you can update the information you have provided us with or how to remove it. Find more English Speaking Jobs in Netherlands on Arbeitnow

We are AI builders Since 2018, Enjins has done one thing: ship AI that works in production. From Utrecht and Berlin, we build machine learning systems, data infrastructure, and agentic AI layers for European tech companies, with a deliberate focus on climate and energy, where we believe the biggest technological shift of our generation should meet its most critical challenge. We embed directly with the engineering teams of high-growth scale-ups like Crisp, PlanBlue, NextSense, and Groendus. We take ownership of the full technical lifecycle: from first architecture decision to a production-grade system running inside our partner's infrastructure, long after go-live. The role As Lead AI Engineer, you are the technical owner of client engagements. You architect the solution, ship it to production, and make sure it still performs a year later. Alongside the other Leads, you shape the engineering team and the way we build. In practice: Design AI roadmaps with client leadership and own them through to production Create and implement the AI solution architectures to deliver on those roadmaps Set and uphold Data Platform and MLOps standards across your client portfolio, so systems stay healthy after handover Mentor engineers and weigh in on hiring, team growth, and accounts Push our engineering practice forward, including how we use agentic coding workflows to build faster without compromising reliability. We test, document, and share what works, so the whole team levels up Elevate our product mindset to ensure we build the right things, not just more things Why a Lead role here, not somewhere else You'll work across more stacks, clouds, and frontier frameworks in a year than most engineers see in five, with the collective knowledge of the whole team behind you, not the isolation of freelance work. And because our clients build grid software, energy forecasting, and climate infrastructure, you develop real domain expertise in energy and climate systems on top of production-grade AI engineering. In your first months you'll join a client project alongside an experienced Enjins engineer, supported by a dedicated coach. Within half a year, you own the technical roadmap of at least one engagement, mentor engineers, and have a recognised voice in our Asset strategy. Requirements What matters most: you think in systems, own outcomes end-to-end, and grow the people around you. 5+ years building and scaling data & AI solutions in production environments Strong software engineering fundamentals: you write production-grade code and know your way around infrastructure (Docker, Kubernetes, CI/CD, data pipelines) Mastery of at least one major cloud platform (AWS, Azure, GCP) and experience leading MLOps/LLMOps architectures Proven experience taking LLM-based or agentic systems to production Experience mentoring engineers, overseeing delivery, and managing client accounts You can translate technical complexity into clear decisions for non-technical stakeholders Fluent in English and eligible to work in the Netherlands Benefits We publish our salary ranges and keep terms straightforward. No surprises. Compensation €5,950 - €7,800 gross per month (excl. holiday allowance, pension, bonus, equity, and AI-Leap benefits) Annual performance bonus of 1.5 months' salary Equity participation (VSOP) Growth AI-Leap: our structured development programme with a dedicated certification budget and a specialised track for Leads 1-on-1 mentoring with our founders and external coaching to close your specific gaps Team & culture Office on the Oudegracht in Utrecht (note: not yet fully accessible for individuals with physical disabilities); hybrid setup 28 vacation days, flexible across 3 national holidays Monthly team events and the annual two-day Enjins Summer Summit on AI × Climate OV-First travel policy, fully covered; meat-free catering Apple MacBook Pro and the tools you need Find more English Speaking Jobs in Netherlands on Arbeitnow

Wir rekrutieren einen Software Test Engineer (m/w/d) für ein neu formiertes Team rund um ein Dynamics 365 Projekt. Das Testing wird von Grund auf neu aufgebaut, du bist also massgeblich an der Definition des Vorgehens beteiligt. Du testest im Sprint mit und verantwortest gleichzeitig die Teststrategie, das Testkonzept und die Testplanung. Du koordinierst die UAT mit dem Fachbereich und bringst Qualitätsstandards in ein Team, das seine Testing-Reife gerade aufbaut. Der Fokus liegt überwiegend auf manuellem Testing, mit der Möglichkeit, später in die Automatisierung hineinzuwachsen. Must-have Anforderungen Mehrjährige Erfahrung im Software-Testing in agilen Umgebungen, sicher im Testfalldesign und in der Erstellung von Testkonzepten Erfahrung mit Azure DevOps (Boards, Test Plans) oder Jira Xray Erfahrung im Testing konfigurierter Business-Plattformen, idealerweise Dynamics 365 (CE/CRM) oder Power Platform Sehr gutes Deutsch und fliessendes Englisch Nice-to-have Anforderungen ISTQB Zertifizierung Kenntnisse in Power Platform oder Azure Das erwartet dich Flexibler Homeoffice-Anteil, du entscheidest frei, ob du von zu Hause oder im Büro arbeitest Flache Hierarchien Grosszügige Weiterbildungsförderung Halbtax, Gesundheitsangebote, gemeinsame Anlässe Interessiert an weiteren Informationen? Melde dich gerne unter Find Jobs in Switzerland on Arbeitnow

We are looking for a senior Java engineer with a strong performance engineering background to join a global financial technology platform team in Zurich. What you will be doing You will work within a cross-functional Scrum team on a high-throughput, enterprise-grade platform serving the global Securities Finance and Collateral market. Your focus will be on identifying and eliminating performance bottlenecks, rearchitecting critical components for scalability, and driving the platform's technical evolution alongside senior architects. What we are looking for 5+ years of hands-on Java enterprise development (Java SE/JEE, Spring, JPA/Hibernate) Real performance engineering experience acquired through development work: profiling, GC tuning, load testing, bottleneck analysis Strong SQL skills (Oracle, PostgreSQL, or SQL Server) Background in financial services or high-throughput enterprise systems Solid understanding of software design and enterprise architectural patterns Experience working in Agile, distributed team environments Strong communication skills in English Good to have Experience with Kubernetes/OpenShift CI/CD and DevOps practices Apache Camel or similar integration frameworks Find more English Speaking Jobs in Switzerland on Arbeitnow

Wir suchen einen erfahrenen Senior .NET Developer für ein etabliertes Schweizer IT-Dienstleistungsunternehmen im Raum Bern. Du arbeitest in einem motivierten SCRUM-Team an anspruchsvollen Kundenprojekten und übernimmst Verantwortung für Architektur, Codequalität und technische Entscheidungen. Aufgaben Entwicklung und Weiterentwicklung von Backend-Services und APIs auf Basis von .NET Core Mitarbeit an Frontend-Komponenten mit Blazor oder Razor Design und Umsetzung von Microservices- und Integrationsarchitekturen Sicherstellung von Codequalität durch automatisierte Tests und Code Reviews Aktive Mitgestaltung von Architekturentscheidungen im Team Anforderungen Mehr als 5 Jahre Erfahrung in der Softwareentwicklung mit .NET Fundierte Kenntnisse in .NET Core, Entity Framework, Blazor und REST APIs Erfahrung mit Microsoft Azure und Azure DevOps Kenntnisse in Microservices und Integrationsarchitekturen Kenntnisse in Kubernetes, Kafka, xUnit oder API Kana von Vorteil Erfahrung mit agilen Methoden (Scrum, Kanban oder SAFe) Sehr gute Deutschkenntnisse Was dich erwartet Festanstellung bei einem stabilen, finanzstarken Unternehmen mit über 35 Jahren Geschichte Breites Spektrum an Projekten und Technologien Strukturierte Weiterentwicklungsmöglichkeiten und echte technische Eigenverantwortung Moderner Tech-Stack mit aktivem Einsatz von AI-Tools in der Entwicklung Find more English Speaking Jobs in Switzerland on Arbeitnow

Für die Verstärkung eines agilen Produktteams innerhalb eines Agile Release Train bei einem unserer Kunden in Luzern suchen wir eine erfahrene Senior Frontend-Entwicklungspersönlichkeit. Im Fokus stehen eine starke operative Delivery, die saubere und selbstständige technische Umsetzung sowie eine verlässliche Zusammenarbeit im Team. Du konzipierst und realisierst komplexe Anforderungen eigenständig, bringst gute Engineering-Praktiken mit und treibst technische Themen konstruktiv voran. Aufgaben Eigenständige Konzeption und Umsetzung komplexer Frontend-Anforderungen mit Angular, TypeScript, HTML und SCSS Entwicklung wiederverwendbarer Web Components mit hohem Anspruch an User Experience, Accessibility und Usability Erarbeitung und Umsetzung architekturkonformer Lösungen inkl. Dokumentation Sicherstellung der Qualität durch E2E-Tests und UI-Testing mit Storybook und Chromatic Gezielter Einsatz von AI-basierten Coding-Assistants wie GitHub Copilot zur Steigerung von Qualität und Entwicklungsgeschwindigkeit Proaktive Identifikation von Verbesserungspotenzialen in Code und Prozessen Enge, teamübergreifende Zusammenarbeit mit Fachbereich und Entwicklungsteam sowie Weitergabe von Wissen im Team Fundierte praktische Erfahrung als Senior Frontend-Entwickler mit Angular, TypeScript, HTML und SCSS Ausgeprägtes Know-how in Web Components, Accessibility und Usability sowie Begeisterung für gute User Experience Erfahrung im DevOps- und Cloud-Umfeld Praxis mit E2E-Tests und UI-Testing, idealerweise mit Storybook und Chromatic Sicherer Umgang mit modernen AI-basierten Coding-Assistants (z.B. GitHub Copilot) Fähigkeit, anspruchsvolle Architekturanforderungen souverän in hochwertigen Code zu übersetzen und komplexe technische Herausforderungen zu lösen Erfahrung und Bereitschaft in der Backend-Entwicklung mit Java von Vorteil Erfahrung in agilen Teams, umsetzungsorientierte Macher-Mentalität und hohes Mass an Selbstständigkeit und Verantwortungsbewusstsein Gelassenheit unter Druck sowie Freude daran, Wissen zu teilen Adressatengerechte Kommunikation in Deutsch auf Niveau C1 Generelle Rahmenbedingungen Start: Ab sofort Dauer: bis 31.12.2026 (Option auf Verlängerung) Pensum: 100 % Arbeitsort: Luzern Remote: Max. 3 Tage pro Woche (zwei Teamtage vor Ort) Sprache: Deutsch Find more English Speaking Jobs in Switzerland on Arbeitnow

About Mirakl: Founded in 2012, Mirakl has been at the forefront of marketplace innovation, empowering every business to compete in the platform economy. Today, Mirakl's operating system combines an enterprise marketplace solution (Mirakl Platform) that enables retailers and B2B organizations to launch, scale, and operate marketplaces and dropship, AI-powered multichannel selling (Mirakl Connect), retail media (Mirakl Ads) and an agentic commerce infrastructure (Mirakl Nexus). With dual headquarters in Boston and Paris, Mirakl helps a global ecosystem of 450+ marketplaces (B2C and B2B) and a network of over 100k third-party marketplace sellers. Brands like Macy's, Decathlon, Carrefour, Asos, and Airbus Helicopters use Mirakl to grow their businesses in new and remarkable ways. For more information: www.mirakl.com . Mirakl in Numbers: 🗓️ Founded in 2012 | Member of French Tech Next40 👥 750+ employees in 9 offices worldwide: Paris, Barcelona, Bordeaux, Boston, London, Munich, New York, Sydney, Tokyo 🇫🇷 350+ Mirakl Tech teams members mainly based in France ⚙️ 5 Saas Solutions Our Values: Working at Mirakl means accelerating your career alongside ambitious, passionate, and supportive colleagues. We're proud of the diversity of backgrounds, perspectives, and experiences that make our teams unique. Our 5 values guide how we collaborate: 💡 Work Hard Together: Teamwork and collaboration are the foundation of our success 🏆 Get Things Done: We prioritize action and efficiency for impactful results 🚀 Go Above & Beyond: We tackle challenges proactively and always aim for excellence 🎓 Succeed Through Expertise: Knowledge sharing and continuous learning are core to our culture 🤝 Satisfy & Empower Clients: We're committed to our clients' success 1. The Team You'll Join You'll be part of one of our Mirakl Labs teams working on the Mirakl Connect product , alongside software engineers, a Product Manager, and a QA Engineer. Our teams own the full end-to-end scope of their products, from design and development to the delivery of high-quality features for Mirakl's SaaS platform, used by clients around the world. Starting in January or February 2027 , you'll join us as an apprentice and be mentored by Jérôme Valloire, Software Architect , who will support your technical growth and help you develop strong software engineering best practices. 2. Your Impact Participate in design sessions with your squad, Product Manager, and UX/UI teams to shape and scope new features Develop, test, and ship code to production through continuous delivery practices Engage in code reviews and pair programming, giving and receiving feedback to grow quickly Monitor and debug production issues, embracing a you build it, you run it mindset Contribute to agile ceremonies (stand-ups, sprint reviews, retrospectives) and the Labs product roadmap 3. What You'll Bring to the Role Experience: Currently enrolled in an engineering school or university, specializing in web or software development A first hands-on experience in development, whether through an internship, school project, personal project, or a previous apprenticeship Good understanding of Java and object-oriented programming Familiarity with modern frameworks such as Spring Boot is a plus A strong interest in AI technologies Skills: Java development and OOP principles Interest in databases (PostgreSQL, MySQL, MongoDB) Curiosity for microservices architecture, API design, and cloud environments Commitment to software quality practices (testing, clean code, design patterns) Collaborative mindset with a passion for knowledge sharing and problem solving 4. Tech Stack Back-end: Java 21, Spring Boot Front-end: ReactJS Data & Messaging: Kafka, ElasticSearch, PostgreSQL Tools & Practices: CI/CD, Git, Docker, Monitoring 5. Languages English: Professional proficiency (written and spoken) French: Fluent 7. Our Hiring Process We warmly encourage you to apply to any of our roles, even if you think you're not an exact match. Please click the "Apply" button to submit your application, this helps us make the best possible assessment and get back to you as quickly as possible. Manual screening of your CV by a recruiter and then an AI-powered screening conversation (10 min) with Emma, Mirakl's AI Talent Ambassador, to explore your background and motivation for the role. You will need to complete this step within 3 days, otherwise we won't be able to move forward with your application. Recruiter call (30 min): a conversation about your background, motivations, and an introduction to Mirakl Technical interview (45 min): an assessment of your Java and web development skills through a technical discussion STAR interview (1h): a conversation with one or two team members to explore Mirakl's values and culture fit We welcome collaborators with their diverse perspectives and experiences to power us forward. These often far exceed conventional job requirements and help us create a culture of continuous learning. If you're ready to join a global leader powering digital transformation for 450+ of the world's most innovative retailers and B2B organizations. As part of our recruitment process, Mirakl processes your personal data to review and manage your application and, where appropriate, to consider your profile for future opportunities. You can exercise your data protection rights at any time, and as further detailed in our policies. For more information about how we process your personal data and your rights, please consult our Recruitment Privacy Notice, here in English and here in French. We may use Artificial Intelligence (AI) solutions to help streamline our hiring process, including screening applications, analyzing resumes, and assessing responses. While AI helps us work efficiently, all final hiring decisions are made by humans. For more information, visit our AI Guidelines for Candidates and Interviews . Find Jobs in France on Arbeitnow