Fullstack Software Engineer at Onramper | Amsterdam

About UsScaler is an innovative sustainability data platform designed specifically for the real estate sector. Our mission is to empower real estate managers and investors with the critical data they require to safeguard asset value, comply with reporting mandates, and mitigate long-term risks.The RoleWe are seeking a Senior Fullstack Engineer who will play a pivotal role in developing new products and features from inception to deployment. You will collaborate closely with product management and design teams to transform complex data into intuitive tools that clients utilize every day. Additionally, you will contribute to establishing code review standards and architectural decisions that maintain a robust and scalable codebase as our team expands. This position is ideal for individuals eager to influence product development rather than just execute tasks from a backlog.What You'll DoDesign and deploy comprehensive full-stack features within a data-centric platform utilized by real estate investment teams.Develop and oversee features that leverage Large Language Models (LLMs) in production, including Retrieval-Augmented Generation (RAG) pipelines, LLM integrations, safeguard parameters, and evaluation frameworks.Lead architectural decisions concerning backend systems built to accommodate ongoing increases in data volume and client demand.Establish engineering standards across code reviews, testing, monitoring, and observability practices.What You'll BringAt least 6 years of fullstack engineering experience with a proven history of delivering production systems.Extensive expertise in Python and JavaScript/TypeScript, coupled with strong proficiency in CSS.Hands-on experience with LLM integration, including prompt engineering, RAG pipelines, function calling, evaluations, or safeguard measures.Familiarity with one or more frameworks such as FastAPI, Laravel, Vue.js, Tailwind CSS, ECharts.Demonstrated ability to work with large, intricate datasets and create systems that present data clearly.Experience with web metrics, monitoring, and observability tools.Strong foundation in data structures and algorithms as applied to real-world engineering challenges.Ability to thrive in a small, agile team environment and take ownership of outcomes beyond just ticket completion.Our Tech StackFront-end: Vue.js, Tailwind CSS

Join the dynamic team at Scaler as a Workplace Experience Intern in Amsterdam! This hybrid position offers a unique opportunity to gain hands-on experience in enhancing workplace environments and employee experiences. As a key member of our team, you will assist with various projects aimed at improving the overall workplace atmosphere and supporting employee engagement initiatives.

Dataiku is the leading platform for AI success, providing an enterprise orchestration layer for developing, deploying, and governing AI. Within a unified environment, teams can craft and manage analytics, machine learning, and AI agents with the transparency, collaboration, and governance that enterprises demand. Dataiku sits above various data platforms, cloud infrastructures, and AI services, seamlessly connecting the entire enterprise AI stack—enabling organizations to implement AI across diverse environments with centralized oversight.The world's foremost companies depend on Dataiku to operationalize AI, transforming it into a genuine business performance engine that delivers quantifiable value. Explore more about us through the Dataiku blog, LinkedIn, X, and YouTube.Why Join the Engineering Team at Dataiku?At Dataiku, our platform—whether deployed on-premise, in the cloud, or as SaaS—integrates a myriad of data science technologies, reflecting our unwavering commitment to quality and innovation. We harness the best data and AI technologies, selecting tools that genuinely enhance our product. From cutting-edge LLMs to our dedication to open-source communities, you will have the opportunity to work with an exciting array of technologies while contributing to the collective knowledge of global tech pioneers. To learn more about our engineering culture, check out this link.For additional insights into Dataiku’s offerings, explore: Key Capabilities; GitHub; and the Gallery, showcasing example projects (note that editing is limited and regularly reset).Our flagship product, Dataiku DSS (Data Science Studio), is at the forefront of our mission. Interested in seeing it in action? Watch our demo here.

Join us at Databricks, where our mission is to empower data teams to tackle some of the world's most significant challenges — from revolutionizing transportation to accelerating medical advancements. We achieve this by developing and operating the premier data and AI infrastructure platform, allowing our customers to harness profound data insights to enhance their businesses. Founded by engineers and driven by a customer-centric philosophy, we eagerly embrace every chance to overcome technical hurdles, whether that's crafting next-generation UI/UX for data interaction or scaling our services across millions of virtual machines. And this is just the beginning. Unlike conventional enterprise software, we create and build innovative SaaS products that delight all stakeholders: decision-makers, administrators, and end-users. As a Senior Fullstack Software Engineer, you will collaborate closely with your team and product management to deliver exceptional user experiences. Here are a few of the dynamic teams you could become a part of: SQL Analytics Console: This new product provides Databricks customers with a top-notch experience for Business Intelligence (BI) and executing SQL workloads directly on the data lake. Our team develops the console for SQL Analytics, where users configure, manage, and monitor their SQL usage.Jobs and Workflows: This team supports all asynchronous customer workloads for Databricks, which constitute the majority of our usage. As this demand has surged, we have restructured the system to enhance stability and scalability, while also introducing exciting new features for advanced workflows and customer observability. This team combines frontend, backend, and reliability engineering skills across various projects.Developer Ecosystem: Focused on enhancing the development experience and best practices with external tools, we oversee the core open-source components of the developer ecosystem: the SDK, CLI, and Terraform.Apps Developer Experience: This team is dedicated to making application development on Databricks seamless and enjoyable. We have built an SDK and services tailored for app developers, including our AppKit. Our Codegen sub-team develops tools that ensure apps function perfectly from the start. We are also working on an MCP server for Cursor/Claude Code and developing Skills.

P-1320 At Databricks, we are dedicated to empowering data teams to tackle the most pressing challenges facing the world today. From revolutionizing transportation to advancing medical innovations, we achieve this by developing and maintaining the leading data and AI infrastructure platform. Our customers leverage deep data insights to enhance their operations and drive growth. Founded by engineers who are obsessed with customer success, we eagerly embrace every opportunity to address technical challenges — whether it’s creating next-gen UI/UX for data interactions or scaling our services across millions of virtual machines. We’re just getting started! Unlike conventional enterprise software, we craft modern SaaS products that bring satisfaction to all stakeholders: decision-makers, administrators, and end-users alike. As a Fullstack Software Engineer, you will collaborate closely with your team and product management to deliver exceptional user experiences. Here are a few teams you might join: SQL Analytics Console: This innovative product offers Databricks customers a superior experience for Business Intelligence (BI) and executing SQL workloads directly on the data lake. Our team develops the console for SQL Analytics, enabling users to configure, manage, and monitor their SQL activities. Jobs and Workflows: This team supports all asynchronous customer workloads for Databricks, which constitutes the majority of our usage. As this demand has surged, we have reengineered the system for enhanced stability and scalability, while also introducing exciting new features for advanced workflows and customer observability. Our projects encompass a diverse skill set, including frontend, backend, and reliability engineering. Developer Ecosystem: Focused on improving the development experience, this team governs the core open-source components of our developer ecosystem, which includes the SDK, CLI, and Terraform. Neon Backend as a Service: Responsible for transforming Neon.com into more than just a database, this team provides essential services that empower developers and AI agents to build full-stack applications seamlessly on our platform (auth, data API, email, etc.). Our focus is on designing the foundational elements that will drive the next generation of AI agents and developer workflows.

Are you ready to revolutionize the mortgage industry with innovative technology?At Frits, we believe that mortgage advice can be fundamentally improved. Gone are the dusty reports and lengthy conversations; we utilize intelligent technology to make complex choices understandable for everyone. Generative AI plays a pivotal role in shaping the future of Frits' mortgage advice.As a Fullstack TypeScript AI Engineer, you will translate state-of-the-art LLM technology into robust, secure solutions that empower clients and accelerate mortgage advisors. Given the significant financial implications for clients and stringent regulations, our quality standards are exceptionally high. With the complexity of the subject matter and our ambition to bring generative AI directly to consumers, you will be working at the forefront of what is technologically possible.Your ResponsibilitiesIn your role as Fullstack TypeScript AI Engineer, you will be central to implementing LLM applications within Frits' mortgage advisory platform. You will ensure that intelligent technology provides tangible value to both clients and advisors. Collaborating closely with fellow developers, AI specialists, and mortgage and compliance experts, you will develop AI solutions that are comprehensible, reliable, and effective.Full stack development: Engage in software development across both the front and back end of our AI application stack.Front-end thought leadership: While our multidisciplinary team operates as full stack, each member brings deep expertise in a specific area. You will be our front-end thought leader, elevating user experience, performance, and visual consistency of our applications.Prompt design: Design, test, and optimize effective prompts and guardrails to ensure AI models produce consistently useful, safe, and relevant outputs.Evaluation & quality assurance: Design and implement tests (in collaboration with mortgage experts) for the LLM systems based on extensive test datasets.Monitoring & continuous improvement: Analyze production traces, logs, metrics, and user feedback to identify issues and optimize performance.Collaboration: Work closely with mortgage advisors, compliance officers, fellow developers, and AI specialists to translate domain-specific knowledge, business logic, and compliance requirements into effective LLM solutions.Why Join Us?Make a significant impact from day one: As a Fullstack TypeScript AI Engineer at Frits, you will have the opportunity to leave your mark from the start. No minor optimizations here, but transformative advancements.

Join Altura, a trailblazing SaaS startup that has recently secured Series A funding!At Altura, our mission is to empower organizations to successfully navigate complex bidding processes, including tenders and RfPs. Our innovative AI-driven platform streamlines bid management, transforming it into a seamless and strategic endeavor. By integrating workflows, automating tasks, and enhancing knowledge accessibility, we enable teams to operate with unparalleled efficiency and effectiveness.And this is just the beginning.We are on the path to creating the first AI-powered Agentic Virtual Bid Management Assistant, which aims to fully automate the bid lifecycle. With fresh capital, ambitious goals, and a rapidly expanding team, we are just scratching the surface of what’s possible.If you are passionate about innovation, thrive in collaborative environments, and seek to make a significant impact, we invite you to join our team.Together, let’s shape the future!Role OverviewAs a Senior AI Engineer, you will become an integral part of our high-performing team, responsible for developing the agentic layer that propels Altura's next phase of growth. This is not a role that involves simply integrating prompts into an API; instead, you will design and implement authentic agentic workflows: context-aware, production-grade systems built on our proprietary data graph, establishing a robust technical foundation.You will collaborate within a nimble team, enjoying the freedom to experiment with the latest technologies: Claude Code, Cursor, Copilot, and emerging models as they are released. If it pushes the envelope of innovation, we are all in.You will lead high-impact AI initiatives from inception to execution:From discovery and greenfield prototypingTo model evaluation and multi-model strategyTo production rollout, observability, and ongoing enhancementsIn addition to product capabilities, you will contribute to the development of foundational AI platform components, including context engineering, agent orchestration, evaluation frameworks, tone monitoring, and real-time observability.We prioritize speed, ownership, and genuine technical influence—free from corporate bureaucracy and endless committees.You will deliver AI solutions that are:Dependable in a production environmentScalable across diverse customer basesQuantifiable in terms of impactEconomical by designAdditionally, you will play a key role in defining what exceptional AI engineering entails within a forward-thinking Series A company.

Be Yourself at Protolabs At Protolabs, we believe in the power of individuality. Research indicates that underrepresented groups often hesitate to apply unless they meet every qualification. We are an equal opportunity employer, dedicated to fostering a diverse team where every member feels valued and included. If you find yourself intrigued by this opportunity but don’t meet every requirement, we encourage you to apply anyway!Why Choose Protolabs? We are pioneers in digital manufacturing, seeking innovative thinkers who embrace challenges with an entrepreneurial mindset. Our vibrant culture revolves around meaningful work that propels innovative products to market at unmatched speeds. We take pride in our diverse team, which is composed of talented individuals from various backgrounds who are genuine, humble, and passionate about their craft. It’s our people who fuel our creativity and make our workplace feel like home.Become a part of our team as a Senior DevOps Engineer in Amsterdam!The Senior DevOps Engineer collaborates closely with IT, software development, and technology stakeholders to support and enhance Protolabs’ internal and external business applications. As a vital member of our DevOps team, you will be responsible for provisioning, configuring, operating, and maintaining version control systems, build tools, and continuous integration platforms, ensuring the reliable and efficient delivery of software solutions.

Dataiku is the premier Platform for AI Success, acting as the enterprise orchestration layer for the development, deployment, and governance of AI initiatives. Our platform enables teams to design and operate analytics, machine learning, and AI agents within a cohesive environment that ensures transparency, collaboration, and control, essential for enterprises. Positioned above data platforms, cloud infrastructure, and AI services, Dataiku integrates the entire enterprise AI stack, empowering organizations to implement AI across diverse vendor environments with centralized governance.Top global companies trust Dataiku to operationalize AI, transforming it into a vital business performance engine that delivers tangible value. Discover more by visiting the Dataiku blog, LinkedIn, X, and YouTube.Why Join Engineering at Dataiku?At Dataiku, our platform can be deployed on-premise, in the cloud, or as a SaaS solution, integrating a wide array of data science technologies. Our commitment to quality and innovation is reflected in our technology stack, where we select tools that genuinely enhance our product. You will engage with a dynamic range of technologies, from the latest LLMs to our contributions to open source communities, and help expand the collective knowledge of global tech innovators. Learn more about life in Engineering at Dataiku here.Within Business Solutions, we are developing applications that leverage Dataiku's capabilities in data and AI, focusing on key enterprise use cases that require user-centric UIs and workflows. We cater to various industries, including Manufacturing, Life Sciences, and Finance, enhancing critical processes within their business and operational models. In essence, our work embodies the spirit of 'everyday AI'!Your ImpactInnovative AI-Driven Applications: Design, develop, and deploy AI-powered applications that tackle intricate business challenges.

Senior Data EngineerAbout AND DigitalAt AND Digital, we are committed to accelerating the growth of digital capabilities for organizations. Our mission is to empower visionary leaders and businesses by creating the teams, products, processes, and operational frameworks necessary to bridge the digital skills gap, ensuring their success into the future.Our clients trust us for our extensive expertise, agility, and craftsmanship across technology and business strategy, software development, and product management. We tackle some of today’s most pressing challenges with creative solutions.We are on the lookout for innovative thinkers, skilled tinkerers, passionate software craftsmen, and motivating technologists to join us in solving complex issues. Together, we are driven by a common purpose and the belief that while technology can enable transformation, it is ultimately the people who drive meaningful change.Your RoleAs a Senior Data Engineer, your primary focus will be to assist clients in meeting their data engineering requirements. You will be involved in the development, deployment, and maintenance of data pipelines within a dynamic Agile environment.Your contributions will significantly influence the team’s Agile practices, technical decision-making, and the overall quality and reliability of our data and processes. Your role will also include mentoring junior and mid-level technologists, both at AND and for our clients, which encompasses the following responsibilities:Extracting data from diverse data sourcesCreating code for data ingestion and transformationTransforming data to empower data scientists and product analystsDesigning and building scalable and extensible data architecturesExecuting large-scale batch and real-time processingAdvising clients on effective data engineering strategiesCollaborating with technical leads for system integrationsShaping Technical DirectionActively engaging with our Consultancy Data Strategy and Insight practice to formulate and implement clients’ data strategiesPromoting and maintaining high standards of technical quality

Join a dynamic team at Insify, a rapidly growing European insurtech, and take the lead in shaping impactful outcomes.At Insify, we are entrepreneurs at heart, dedicated to creating innovative insurance solutions tailored for other entrepreneurs. We understand the journey of building from the ground up, taking calculated risks, and embracing responsibilities that extend beyond traditional hours.Our mission is both straightforward and ambitious: to revolutionize business insurance, making it 10 times simpler, faster, and fairer for entrepreneurs and SMEs throughout Europe. We eliminate cumbersome paperwork, obscure fine print, and outdated complexities, relying instead on modern software, intelligent automation, and an unwavering commitment to customer satisfaction. As a high-growth scale-up in Europe, we have secured €43M in funding from top-tier investors and aim to lead the global market in digital insurance for entrepreneurs and SMEs, starting from the Netherlands and expanding into France and Germany.We are fundamentally a technology-driven company, crafting our own insurtech platform while leveraging data, automation, and AI to transform the entire insurance process, from underwriting to claims. Our fully digital customer portal, coupled with a strong focus on user experience, is redefining insurance as a simple, transparent, and equitable service.Our leadership comprises seasoned entrepreneurs who have successfully built and scaled businesses, instilling that same drive, urgency, and sense of ownership in everything we do.Our CultureWe are not merely creating a company; we are establishing a category leader, which demands ambition, accountability, and speed.Our culture is characterized by three core principles:High Ownership Team members take full responsibility for their challenges. If something is unclear or broken, we proactively take action to resolve it.High Pace Priorities are dynamic, and decisions are made swiftly. We prioritize momentum and learning over perfection.High Standards Results are valued more than appearances. We focus on outcomes, quality, and commitment to our work.Furthermore, you will not be working in isolation.We believe that exceptional work is the product of close collaboration. Our team engages in face-to-face interactions, challenges each other's ideas, and encourages contributions from all levels, irrespective of title or experience.

Welcome to Adyen Adyen is a premier financial technology platform that delivers an integrated solution for payments, data, and financial products, serving renowned clients such as Meta, Uber, H&M, and Microsoft. We are dedicated to fostering an environment where ambition thrives. We empower our teams to succeed by providing opportunities for growth, a supportive culture, and the freedom to take charge of their careers. Our motivated team tackles unique technical challenges at scale and collaborates to create innovative and ethical solutions that accelerate business success. Position Overview: Senior Data Engineer At Adyen, we regard data and its components as integral to our operations, serving as the foundation for our business and product insights. We are seeking a Senior Data Engineer in Amsterdam who possesses a keen understanding of the business context and data requirements, and excels in constructing high-quality data pipelines on our Big Data Platform. In this role, you will significantly impact our data infrastructure and facilitate seamless data flow across different systems.

About UsAsula is a pioneering bitcoin company dedicated to developing cutting-edge financial products that bridge the gap between bitcoin, blockchains, stablecoins, and traditional finance. Currently, we are focused on our innovative mobile application, Dawn, which empowers users to save and enhance their wealth through bitcoin and stablecoins. In addition to Dawn, our initiatives include enabling seamless bitcoin swaps and credit access for holders of all sizes via onchain protocols.RoleWe are in search of a versatile Senior Software Engineer to join our dynamic team, contributing across the backend stack to breathe life into our products. In this role, you will be expected to:Design and implement robust backend systems that support both user-facing applications (like Dawn) and essential protocol components.Architect scalable and resilient services, including APIs, stateful services, and blockchain data pipelines capable of handling real-world demands.Drive significant architectural enhancements to the codebase while establishing best practices in our evolving organization.Mentor team members to elevate long-term architecture and code quality.QualificationsA minimum of 3 years of hands-on experience as a systems engineer, designing and managing production services with real traffic, preferably in finance, trading, or blockchain sectors.In-depth knowledge of distributed systems, data modeling, and network architecture — with a focus on latency, throughput, and fault tolerance.Proficiency in at least one strongly-typed backend programming language (Rust, Go, or C++) and comfortable navigating various frameworks, APIs, and infrastructure.A genuine interest in bitcoin, blockchains, and onchain finance.Nice to HavesExperience utilizing stablecoins and/or bitcoin in your everyday transactions.Background in developing low-latency systems for trading.

Are you ready to transform the banking experience? At bunq, we strive to simplify lives and redefine banking for everyone. This is your opportunity to contribute to the future of digital banking, creating the ultimate app experience. Leverage your coding skills to develop and enhance the Bank of The Free, ensuring seamless, secure, and flawless functionality for our users.Take OwnershipAs a Senior Backend Engineer at bunq, you will lead our backend development, providing users and employees with unmatched stability and performance.Collaborate with our product team to design and implement robust backend structures for innovative user-facing features, utilizing technologies such as MySQL, Redis, Elasticsearch, and PHP.Support the growth of our backend team by mentoring junior developers and helping them reach their full potential.Oversee high-availability production systems and assist other departments by developing and maintaining efficient, scalable processes.

Be Yourself at ProtolabsWe embrace diversity and are an equal opportunity employer. We encourage individuals from all backgrounds to apply, even if they don’t meet every single qualification. Your unique perspective can help us grow and innovate.Why Choose Protolabs?As leaders in digital manufacturing, we attract doers, makers, and innovative thinkers who approach their work with an entrepreneurial mindset. Our culture revolves around delivering meaningful work that introduces new products to the market at unmatched speeds. We take pride in our diverse team, which is smart, genuine, humble, and passionate. It’s our people who inspire creativity and make our workplace feel like home.Join Our Team as a Senior Backend Engineer!This position is hybrid and open to candidates located in the Netherlands.The Manufacturing Partner Marketplace is the operational backbone of the Protolabs Network. We oversee the entire order lifecycle, from matching orders to the right manufacturing partners through production and quality control to ensuring timely delivery. Our role is crucial for maintaining seamless operations and customer satisfaction.In this role, you will develop systems that drive the marketplace, including automated auctions, order allocation, supplier tools, production workflows, global logistics, quality control, and internal operations tools. We seek a pragmatic problem solver who thrives in a dynamic environment and takes ownership of both the business challenges and technical solutions.

About Tebi Tebi builds a Connected Restaurant Management System that brings together sales, reservations, kitchen prep, payments, and essential data in one platform. The goal: smoother operations and clear analytics for hospitality businesses. Founded by Arnout Schuijff (Adyen co-founder) and backed by €50 million from Index Ventures and CapitalG, Tebi focuses on real needs in the hospitality sector. Thousands of restaurants, cafés, bars, and coffee shops in the Netherlands, the UK, and other countries already use Tebi’s solution. Role Overview: Senior Software/DevOps Engineer This role centers on strengthening Tebi’s backend and infrastructure. The Senior Backend/DevOps Engineer shapes scalable services and fine-tunes core software architecture. Expect to work on both the underlying system and new product features. The work directly supports a seamless experience for users and staff in the hospitality industry. Tebi looks for someone who enjoys tackling complex systems, cares about performance, and wants to help modernize a sector that still faces many technical challenges. Location Amsterdam (on-site). Tebi supports relocation for EU citizens moving from abroad. Relocation Support Comprehensive relocation package available for EU citizens relocating to the Netherlands.

Adyen is looking for a Senior Machine Learning Engineer to help shape the future of payment solutions. This position is based in Amsterdam and focuses on building and improving machine learning models that support a global client base. Role overview This role centers on developing and refining machine learning technologies for payment systems. The work involves applying advanced techniques to deliver solutions that address real-world challenges in the payments industry. What you will do Design, build, and optimize machine learning models for payment-related use cases Collaborate with a team focused on innovation in payment technology Contribute expertise to advance Adyen’s machine learning capabilities for global clients Location This position is based in Amsterdam.

Join Winthrop Technologies, a premier data centre solutions provider headquartered in Dublin, delivering comprehensive services across Europe. As the leading dedicated data centre delivery partner, we specialize in turnkey solutions that encompass design, construction, and commissioning across civil, structural, architectural, mechanical, and electrical services.Currently, we are engaged in multiple large-scale data centre projects across seven European countries, representing over 430 MW of IT load. We are excited to welcome a Senior Mechanical Engineer to our dynamic team in Amsterdam.The Senior Mechanical Engineer will play a pivotal role in supporting the mechanical delivery aspects of our projects by collaborating closely with our multidisciplinary team.

Join Winthrop Technologies, a premier data center delivery partner committed to providing comprehensive turnkey solutions across Europe. Headquartered in Dublin, we deliver exceptional services in design, construction, and commissioning across civil, structural, architectural, mechanical, and electrical disciplines.As the leading dedicated data center partner in Europe, Winthrop is currently executing numerous projects across seven European countries, amounting to over 430 MW of IT load in progress. We are excited to expand our team in Amsterdam with the addition of two Senior Electrical Engineers.Your role will involve collaborating with a dynamic project team to oversee the electrical aspects of our turnkey data center projects. Here are some of your key responsibilities: Conduct thorough electrical design reviews to identify any discrepancies or inconsistencies in specifications and IFC drawings. Create detailed RFIs to clarify ambiguities and resolve potential design challenges. Evaluate equipment sizing (cable, containment, etc.) and provide informed recommendations. Manage the submittals process and ensure timely procurement and delivery of electrical equipment, including conducting receipt verifications. Perform electrical system walk-downs to verify compliance with specifications, drawings, and the Winthrop Integrated Management System. Participate in regular supplier and subcontractor meetings to track progress against the overall construction schedule. Coordinate electrical services with other disciplines and the project BIM team. Guide subcontracted staff on technical project aspects. Work with the construction team to ensure subcontractor adherence to site and project requirements, including health and safety regulations. Develop method statements and risk assessments for construction activities. Collaborate with the project team to optimize the installation sequence of electrical systems for efficiency and safety. Employ troubleshooting techniques to diagnose issues and implement corrective actions. Maintain document control to ensure accuracy and timeliness of logs.