Our partner is looking for a Senior+ Full-Stack Engineer based in Spain. As a Senior+ Full-Stack Engineer, you will build and evolve a developer infrastructure platform that enables AI applications and agents to connect seamlessly with external APIs and services. You will take ownership of product features from initial customer discovery and technical design through implementation, deployment, and continuous improvement. Working across backend services, APIs, runtime systems, and frontend interfaces, you will help deliver reliable, scalable, and intuitive tools for developers. You will join a remote-first, startup environment that values ownership, pragmatic problem-solving, open-source collaboration, and a strong developer experience. Design, develop, and ship full-stack product features, working across backend services, APIs, runtime infrastructure, dashboards, and developer-facing interfaces. Build and maintain the tools developers and AI agents use to interact with the platform, including APIs, SDKs, command-line interfaces (CLI), Model Context Protocol (MCP) integrations, and web applications. Own entire product features and technical initiatives from discovery and architecture through development, testing, deployment, and ongoing optimization. Design and maintain scalable, high-performance systems that remain reliable as customer adoption, integration complexity, and usage volumes increase. Contribute to product strategy and roadmap prioritization, making informed technical and product decisions that balance customer needs, engineering quality, and business objectives. Contribute to the development and maintenance of open-source projects, engaging with the developer community and supporting the evolution of shared tools and repositories.



Collaborate closely with engineering teammates and other stakeholders in a remote-first environment, sharing knowledge, resolving blockers, and supporting incident response when necessary. At least 5 years of software engineering experience at a senior level or above, with strong foundations in backend development, API design, database architecture, distributed systems, and performance optimization. Strong TypeScript skills and the ability to work confidently across the stack, including Node.js backend services and React-based frontend applications. Demonstrated experience building and shipping production-ready software, with the ability to take ownership of complex features from initial concept to successful release. Strong communication and collaboration skills, including the ability to work directly with customers, explain technical concepts clearly, and coordinate effectively with teammates in a remote-first environment. A strong commitment to developer experience, with an understanding of the importance of intuitive APIs, well-designed developer tools, reliable integrations, and polished user interfaces. Based in the Netherlands or otherwise eligible to work remotely from the designated European region. A track record of delivering polished frontend experiences, particularly dashboards, developer portals, or other technical user interfaces. Experience building developer tools, contributing to open-source software, or maintaining community-driven repositories. Fully remote working opportunities, with a remote-first culture across eligible locations in Europe, North America, and Latin America. Opportunities to contribute to open-source projects and help shape tools used by developers building AI-powered applications. Exposure to a fast-growing, venture-backed startup environment with a strong focus on product quality, scalability, and developer experience. #

📌 Senior TypeScript Full-stack Engineer (España)
🏢 Jobgether
📍 España