Jobs, fresher vacancy - Full Stack Engineer • UK

Company: Stoneborn Technologies

UK

Stoneborn Technologies builds the operating system for modern re/insurance with the mission to automate the infrastructure of risk capital. We are a small team of former Palantir and Swiss Re engineers building AI-native systems that turn the manual backbone of insurance into transparent, code-defined workflows.What We BuildInsurance still runs on PDFs, spreadsheets, and email. We build modular AI agents that turn these workflows into deterministic, auditable process chains. Our first product is in pilot at leading re/insurers. With the first product license signed, we are expanding across the value chain to capture end-to-end processes.The RoleYou will build production systems used by our clients, owning application logic across the full stack. You will work closely with backend services and AI agents, prioritizing correctness, maintainability, and clean system design over speed-to-ship. You will own features from design to deployment and iterate directly with users.ResponsibilitiesBuild and ship production features across the full stackImplement application logic that connects user workflows to backend services and agentsWork with product and users to translate manual workflows into softwareIntegrate with APIs, databases, and third-party systemsRaise the bar on code quality, testing, and engineering standards across the teamYou Bring4+ years of professional software engineering experienceStrong engineering fundamentals: you write clean, well-tested, maintainable code and hold others to the same standardProficiency in TypeScript + Python and comfort working across the stackHands-on experience with FastAPI in production environmentsFamiliarity with AWS and comfort deploying and operating cloud infrastructureAbility to reason about systems end-to-end, from data model to user-facing behaviourA bias toward simplicity and correctness over complexityWhy StonebornYour work becomes core infrastructure used by re/insurers in productionProven product traction and high-value roadmapSmall team with direct access to decision-making and clientsMeaningful equity and long-term ownership