
Ore Energy · Amsterdam
THE ROLE At Ore Energy, we are on a mission to fundamentally expand the amount of energy society can reliably harness and use, helping move civilization toward...
At Ore Energy, we are on a mission to fundamentally expand the amount of energy society can reliably harness and use, helping move
civilization toward a more abundant energy future. We are doing this by developing long-duration, utility-scale iron-air batteries
that provide safe, low-cost, multi-day energy storage for electricity grids and data centers.
We are expanding our product validation capabilities and are looking for a Testing Architect to join our team in Amsterdam. In
this role, you will define the testing strategy and design the physical and digital test frameworks used to evaluate our battery
cells, modules, and supporting systems.
Operating at the critical intersection of electrochemistry, hardware engineering, and data analytics, you will build and run
highly efficient, cost-effective test setups. We are looking for a hands-on expert who understands battery behavior deeply, with
specialized knowledge in electrochemistry and corrosion mechanisms, to help us validate product performance, durability, and
safety under real-world conditions.
This role reports directly to the Chief Product Officer (CPO).
technical product requirements and failure modes into structured test protocols.
environmental test setups, balancing technical quality with cost-efficiency.
and corrosion resistance of battery materials under long-duration cycling.
develop automated scripts for data logging, real-time monitoring, and result analysis.
root-cause engineering recommendations and design feedback.
acceptance criteria and build engineering confidence levels.
(SOPs), calibration protocols, and mentoring engineers and technicians on data quality.
specific validation methods for corrosion and chemical degradation.
combining hardware sensors with software platforms.
System Analysis, process capability, or Python/MATLAB scripting for data processing).
setups without relying on bloated, expensive commercial turnkey solutions.
environments is highly valuable.
for multidisciplinary engineering teams.
Principal data architects at Thoughtworks play a key part in developing modern data architecture approaches to meet business objectives and provide end-to-end data solutions. They are responsible for enabling clients and Thoughtworks teams to align on outcomes that support the vision painted by data strategists. They lead the design and architecture of the initiatives which are key to delivery of solutions to budget and timelines. They also guide and mentor delivery teams on architectural decisions to deliver to the solution agreements. JOB RESPONSIBILITIES * You will collaborate with sales and pre-sales to clarify requirements and design viable solutions and drive pursuits with technical stakeholders. * You will lead complex data programs, navigating architectural concerns and enabling delivery teams to deliver on accepted standards within time and budget. * You will provide client-facing technical leadership and guidance on topics related to data architecture, engineering, and analytics to advise clients on bringing their data strategy to life. * You will interact with client counterparts from the enterprise architecture group and lead the delivery, alignment and sign-off of key architectural decisions, trade-offs and ways of working. * You will communicate both high- and low-level technical details of data architecture to engineers and business stakeholders. * You will be able to collaborate, influence and guide at the intersection of analytical and operational architecture. * You will be responsible for the technical design of data governance, data security and data privacy to fulfill compliance requirements. * You will seamlessly incorporate data quality frameworks and processes to address and fulfill requirements as set out in strategy and acceptance criteria. * You will represent Thoughtworks in various online and offline forums, including events and conferences. JOB QUALIFICATIONS TECHNICAL SKILLS * You have experience in defining and implementing different types of data architecture, analyzing trade-offs and can define technology stacks for different types of data architecture. * You have experience in designing application system architecture based on big data, artificial intelligence and related technologies. * You have rich experience in building, maintaining and tuning data platforms, as well extensive experience in data warehouse design, data modeling, data monitoring and operations. * You have experience with common design patterns, application frameworks and foundational/theoretical knowledge (i.e.: distributed systems, data intensive applications, etc.). * You are passionate about data infrastructure and operations, with expertise working in cloud environments. * You are proficient in common open-source distributed computing/storage technologies, including but not limited to YARN, Impala, Spark, MapReduce, Kafka and Flink, with practical project architecture experience. * You have experience in defining, developing and enabling data-driven techniques, advanced analytics, ML/AI and data mining applications in enterprise. * You have experience in developing real-time and low-latency data streaming solutions and a differentiated view on the complexities and tradeoffs connected with them. * You have experience in productionizing machine learning models and applying techniques, tools and processes. PROFESSIONAL SKILLS * You must have extensive pre-sales experience and a proven ability to independently drive complex pursuits and create winning commercial proposals. * You understand the importance of stakeholder management and can easily liaise between clients and other key stakeholders throughout projects, ensuring buy-in and gaining trust along the way. * You are a native-level German speaker (C1 German) that is comfortable and experienced to drive consensus with mostly technical stakeholders. * You are resilient in ambiguous situations and can adapt your role to approach challenges from multiple perspectives. * You have a good understanding of business and communication, collaboration skills, strong learning and summarizing abilities. * You don’t shy away from risks or conflicts, instead you take them on and skillfully manage them. * You coach, mentor and motivate others and you aspire to influence teammates to take positive action and accountability for their work. * You enjoy influencing others and always advocate for technical excellence while being open to change when needed. * Cultivating strong partnerships comes naturally to you; You understand the importance of relationship building and how it can bring new opportunities to our business. 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-Onsite See here our AI policy.
COMPANY Shoparize is a fast-growing e-commerce scale-up active in 21 European markets. We are on a mission to create the smartest and most performance-driven shopping platform in Europe. With a growing team of over 40 employees across tech, operations, marketing, and sales, we are building the financial foundation to support our next stage of scale. Shoparize. Where Comparison Drives Conversion. DESCRIPTION Shoparize is looking for a PHP Software Engineer to develop and maintain our internal platform. ROLE We're looking for a PHP Software Engineer to join our engineering team and help build, scale, and maintain our distributed microservices platform. You'll work across multiple Laravel-based services that power product comparison for billions of product offers across 21 European markets. This is a hands-on technical role where you'll write production code, architect solutions for complex integration challenges, and help establish engineering standards as we scale. WHAT YOU'LL WORK ON DISTRIBUTED SYSTEMS You will build and maintain Laravel-based services (Laravel >= 10, PHP >= 8.3) that communicate via RabbitMQ and REST APIs, design event-driven workflows using message queues for high-volume data processing, and optimize OpenSearch indexing pipelines handling billions of product updates. EXTERNAL INTEGRATIONS You will integrate with 10+ affiliate networks. This involves building robust API clients with error handling, rate limiting, and data transformation, as well as maintaining and extending our internal client libraries for service-to-service communication. CODE QUALITY & ARCHITECTURE You will write clean, testable code with PHPUnit and maintain high test coverage. You'll use static analysis tools like PHPStan and code standards to ensure quality, participate in code reviews, help establish engineering best practices, and contribute to architectural decisions around scalability and system design. PERFORMANCE & SCALE You will optimize queue consumers processing high-volume product data, design efficient database queries and indexing strategies, and monitor and improve system performance across our microservices ecosystem. WHAT WE'RE LOOKING FOR REQUIRED * Strong PHP experience with modern frameworks (Laravel preferred) * Microservices architecture understanding (APIs, message queues, service boundaries) * Testing mindset: Experience with PHPUnit, integration testing, and TDD * Docker/k8s proficiency: Comfortable with containerized development environments * API integration experience: Building and consuming RESTful APIs * Database expertise: MySQL and PostgreSQL optimization, query design, migrations NICE TO HAVE * Experience with RabbitMQ or similar message brokers (Kafka, SQS) * OpenSearch/Elasticsearch knowledge for search and indexing * React/Inertia.js for full-stack contributions * CI/CD setup with GitHub Actions * Experience with static analysis tools (PHPStan, Psalm) and code quality automation * Previous work with affiliate networks or e-commerce platforms PERSONALITY TRAITS * Ownership mindset: You estimate your own work, take responsibility for delivery, and follow through * Collaborative: You thrive in code reviews, technical discussions, and helping teammates solve problems * Pragmatic: You balance perfect solutions with shipping value quickly * Curious: You dig into system behaviors, read documentation, and propose improvements RESPONSIBILITIES * Build: Write production code across our microservices (product catalog, feed aggregation, Google integrations, frontend) * Review: Participate in code reviews and provide constructive technical feedback * Architect: Design solutions for complex integration and scaling challenges * Test: Write unit and integration tests; ensure new code meets quality standards * Collaborate: Join technical and product discussions to shape features and architecture * Mentor: Guide team members through troubleshooting and share knowledge on best practices * Improve: Identify system risks, performance bottlenecks, and areas for refactoring * Deliver: Estimate tasks realistically and take ownership of features from design to production OUR TECH STACK * Languages: PHP 8.3+, JavaScript/TypeScript * Frameworks: Laravel 10+, React, Inertia.js * Infrastructure: Docker, RabbitMQ, OpenSearch, MySQL, PostgreSQL * Tools: PHPUnit, PHPStan, GitHub Actions, Vite/Webpack Mix * Architecture: Microservices, event-driven queues, REST APIs, shared Composer libraries WHY JOIN SHOPARIZE? * Work on real scale challenges: 21 markets, millions of products, distributed systems * Technical ownership: You'll have autonomy to architect solutions and drive technical decisions * Modern stack: Laravel 12, PHP 8.5, Docker, React * Growing team: Help shape engineering culture and standards as we scale * Impact: Your code directly affects conversion rates and revenue across Europe Please note: applicants must currently reside in the Netherlands and hold a valid, unrestricted right to work here. We are unable to provide visa sponsorship (including 30% ruling / highly skilled migrant sponsorship) for this role.
ABOUT FAIRPHONE Fairphone is more than just a company - we are a global leader in sustainable, modular electronics, on a mission to change the electronics industry from the inside out. Built on strong social and environmental values, we are a diverse and inclusive team from all walks of life creating market consumer electronics that make a real impact. At Fairphone, you will find a supportive and safe space where everyone can be themselves, collaborate openly, and have the freedom to learn and grow - because that’s how we innovate and drive change together! So… are you a proactive, self-motivated team player who loves taking initiative and bringing positive energy? Do you thrive in a fast-moving start-up or scale-up environment? Are you a great communicator who values collaboration and embraces different perspectives? And most importantly, do you feel a strong connection to Fairphone’s mission and values? If you're nodding along and thinking, “Yes, that’s me!”, then check out our vacancy below! Please know that we acknowledge that we are living in a time where the use of AI can bring many efficiencies and support. However, we want to know the real YOU. Please try to limit the use of AI tools to generate answers to the application; we value authenticity and encourage you to use your creativity! * Location: Amsterdam-based position * Hours: 32 to 40 hours per week * Start: 01.08.2026 * Contract duration: The 1st 12-month employment contract with the possibility of extension to permanent * Deadline to apply: We review applications on a rolling basis. Please apply as soon as possible ABOUT YOUR ROLE The Fairphone Software Engineering team is seeking a Software Engineer to lead the integration of software features for our partners. In this role, you will be responsible for integrating specialized third-party solutions—such as advanced accessibility tools or robust digital safety features—directly into our Android ecosystem. In this role, you won't just maintain a device; you will be the technical bridge between Fairphone and our ODMs (original design manufacturers), ensuring that partner-specific software components are seamlessly architected, integrated, and maintained within our Android ecosystem. You will champion sustainable and long lasting software development while ensuring our partners' unique requirements are met with high-quality, scalable solutions. While this is a deeply technical engineering role, project management experience is essential. You will be expected to manage complex integration timelines, navigate vendor relationships, and coordinate cross-functional delivery, ensuring that technical milestones align with broader business objectives. You will report to our Head of Software Engineering, who reports to our CTO. KEY RESPONSIBILITIES & OBJECTIVES Your Key Responsibilities * Design and implement software bridges and integration layers for partner-specific components within the Android stack. * Provide direct technical guidance and oversight to the partners to integrate their solution both within our open-source tree and our production codebase. * Ensure the partner components are well integrated throughout the software development lifecycle, from bring-up to maintenance. * Collaborate with internal quality and testing teams to validate ODM deliverables, ensuring all partner integrated features meet Fairphone’s high performance and reliability standards. * Triage and resolve complex integration issues across hardware and software boundaries * Own the technical documentation for partner integration projects, ensuring clear communication with both internal stakeholders and external partners. * Manage project timelines and coordinate cross-functional delivery, ensuring that technical milestones for partner integrations align with business objectives and vendor delivery schedules. Key Objectives * Architect and deliver robust software integration solutions tailored for partner requirements. * Serve as the primary technical point of contact for ODMs and partners to ensure alignment on software stack integration, quality standards, and delivery timelines. * Bridge the gap between internal Fairphone & partner requirements and external ODM implementation capabilities, ensuring code integrity and long-term maintainability. This includes leveraging and contributing to our open-source (OSS) AOSP codebase, particularly for Proof of Concepts (PoCs). YOUR SKILLS & EXPERIENCE * You have a degree in computer science, software engineering, computer engineering, or a similar field, or have equivalent experience in one or more of these fields. * You have 5+ years of relevant, hands-on experience in the Android ecosystem. * You are an expert developer proficient in the core Android and chipset stacks, including C/C++ or Rust, Java and Kotlin. You don't just write code; you architect, test, and implement robust functional requirements. * You have the ability to lead technical discussions and negotiate technical solutions with external partners. * Knowledge of AI/ML integration in Android (e.g., on-device AI, NPU utilization, or relevant frameworks) * You can support building business cases * You are used to working with Legal teams, ensuring Software compliance * You are software quality-driven, used to unit and integration testing, code review tools, and continuous integration. * You are well-versed in open-source development methodologies and thrive in a collaborative environment. * You excel at resolving complex issues, performing root-cause analysis across hardware/software boundaries, and documenting your findings clearly. * Proven experience working directly with Original Design Manufacturers (ODMs) in a technical capacity. * Deep understanding of partner software integration workflows and the unique challenges of customizing Android for specific partner use cases. * You have a solid understanding of Enterprise Firmware Over-the-Air (EFOTA) solutions and the specific challenges of managing update rollouts for large B2B/Enterprise device fleets. * You are familiar with Android Enterprise system update policies (e.g., maintenance windows, mandatory updates). * Specific expertise in any of the various HALs within Android is a bonus, such as camera, audio, WiFi or Bluetooth. * You are proficient with GNU/Linux operating systems. * You are proficient in spoken and written English. Most of us don't have English as our first language, but it's the primary language we use internally, as well as with our teams and partners worldwide. WHAT FAIRPHONE CAN OFFER YOU? * The opportunity to create an impact on the electronics industry around the world. * A diverse work environment full of international, passionate, warm-hearted team members. * 25 paid holidays per year (based on a full-time contract) next to the other public holidays in the Netherlands. You’ll also get a day off on your birthday! Additionally, the longer you stay, the more holidays you get! * Daily, healthy lunch, organic FairChain coffee, and many more tasty things. * You will join Fairphone’s collective pension scheme, and we will contribute to building your pension. * You will receive a MacBook, Fairbuds, and a Fairphone as working devices. * Hybrid working model: We are remote-friendly and also contribute up to €250 toward your home office set-up. * Public transport allowance – we fully cover your 2nd-class commute from your home to the office * Bike allowance – We support you with a bike purchase of up to €300, and you’ll also have a yearly repair budget of up to €100! We also cover 23 cents per km for your biking distance from home to the office (or train station) and back! * Grow with us! We encourage you to develop at Fairphone. In addition to €500 for L&D, we’ll support your career goals with coaching (Inuka), workshops, or courses that you can join with your development budget. You will get access to Udemy with unlimited courses and trainings. * Kitchen with beautiful views to the IJ waterfront. * There’s a gym in the building where you can build healthy habits, stay active and have fun with your colleagues, as well as a subscription to our mental & physical well-being services (Inuka & Urban Sports)