Fullstack Engineer - Generative UI Platform

UI Studio is Spotify's internal generative UI prototyping platform that enables teams to spin up fully functioning replicas of Spotify surfaces — complete with playable music — to explore and pitch new product ideas. What started as a small internal project has evolved into a widely adopted platform, and we're now expanding it into a full generative UI system where teams can prompt for the interfaces they need. We're looking for a Fullstack Engineer who is strong across backend systems and confident building high-quality frontend experiences — to help scale the platform's technical foundations and AI-native capabilities. You'll play a meaningful role in shaping architecture, evolving core systems, and delivering reliable, developer-facing platform functionality used across Spotify.       What You'll Do Design and deliver fullstack features that power UI Studio's generative platform capabilities Architect and implement scalable services and user-facing workflows using TypeScript across frontend and backend (Node.js) Integrate LLM-powered coding agents into product workflows, including tool use, planning loops, evaluation loops, and multi-step orchestration Contribute to search and retrieval infrastructure, including vector-based search systems, indexing strategies, and relevance optimization Design, ship, and operate distributed systems deployed via containerized infrastructure such as Docker and Kubernetes Take end-to-end ownership of well-scoped systems and features, from technical design and implementation through deployment, monitoring, and operational support Improve internal APIs, platform primitives, and developer tooling to create intuitive and scalable platform experiences Uphold strong engineering standards through automated testing, observability, documentation, and continuous delivery practices Who You Are You have professional experience building production systems with TypeScript and Node.js, and you're comfortable contributing across the full stack You have hands-on experience building or meaningfully integrating LLM-powered coding agents, including tool integrations and multi-step workflows You understand search and retrieval design patterns, such as vector search systems, Elasticsearch, and indexing strategies You have experience designing and operating distributed systems and deploying services using containerized tooling such as Docker and Kubernetes You demonstrate strong software engineering fundamentals and can independently ship well-scoped features end-to-end You think in systems — considering reliability, scalability, observability, and maintainability in your designs You communicate clearly in writing and produce structured, actionable technical documentation You care about developer experience and have experience building tools or platforms used by other engineers Where You'll Be • This role is based in Stockholm • We offer you the flexibility to work where you work best! There will be some in person meetings, but still allows for flexibility to work from home. Spotify is an equal opportunity employer. You are welcome at Spotify for who you are, no matter where you come from, what you look like, or what's playing in your headphones. Our platform is for everyone, and so is our workplace. The more voices we have represented and amplified in our business, the more we will all thrive, contribute, and be forward-thinking! So bring us your personal experience, your perspectives, and your background. It's in our differences that we will find the power to keep revolutionizing the way the world listens. At Spotify, we are passionate about inclusivity and making sure our entire recruitment process is accessible to everyone. We have ways to request reasonable accommodations during the interview process and help assist in what you need. If you need accommodations at any stage of the application or interview process, please let us know - we're here to support you in any way we can. Spotify transformed music listening forever when we launched in 2008. Our mission is to unlock the potential of human creativity by giving a million creative artists the opportunity to live off their art and billions of fans the chance to enjoy and be passionate about these creators. Everything we do is driven by our love for music and podcasting. Today, we are the world's most popular audio streaming subscription service.