Full Stack Engineer

Full-Stack Developer (FastAPI + Next.js)Location: EU-based (remote)Contract type: B2BWork model: Remote, with in-person weeks at Oslo HQ every two monthsAbout the CompanyAn AI-first scale-up headquartered in Oslo, building sophisticated product experiences powered by the latest in AI tooling. Fast growth, high standards, and a culture of full ownership define how the team operates.The RoleA true full-stack role with depth on both ends. You'll need strong FastAPI back-end skills combined with substantial Next.js front-end experience. Bonus points if you've built chat or conversational AI interfaces, that's core to what this team delivers.ResponsibilitiesBuild and maintain full-stack features across FastAPI back-end and Next.js front-endDevelop AI-powered product experiences, including chat and conversational interfacesIntegrate with LangGraph and/or LangChain pipelines on the back-endDeliver end-to-end features with minimal hand-holding, from API design to UI implementationRequirementsStrong FastAPI back-end experience (same standard as back-end role above)Substantial, proven Next.js experience (not just exposure)Experience building chat applications or conversational UIs highly preferredLangGraph and/or LangChain familiarity preferredEU residency requiredOwns their work fully, no coaching, no shortcutsWhat's on OfferCompetitive B2B rate (DOE)Fully remote with bi-monthly Oslo in-person weeks (travel covered)A role where your work directly shapes AI product experiences used across Europe