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# Fullstack Engineer- AI Platform

- **Company:** Sosafe
- **Location:** UK (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Software Applications, Cloud Engineering, Software Quality, Programming Tools, Distributed Systems, Node.Js, TypeScript, AI Infrastructure, ReactJS, Large Language Models, Build Management, Virtual Agents, NestJS
- **Published:** September 5, 2026
- **Apply:** https://startup.jobs/senior-fullstack-engineer-ai-platform-sosafe-8934413

## About the Role

* Hands-on experience building AI-powered applications or platforms using LLMs, AI agents, LangChain, LangGraph, MCP or similar technologies.
 * A platform mindset-you enjoy building reusable systems, APIs and tooling that help other engineers move faster.
 * Confidence using AI coding tools as part of your daily workflow while applying sound engineering judgment to architecture, code quality and technical decisions.
 * The ability to thrive in ambiguity, take ownership and solve complex engineering problems in a fast-moving environment.
 * Experience with developer platforms, distributed systems, infrastructure-as-code, cloud-native architectures or AI governance is a strong advantage.

## Description

* Build the core capabilities behind SoSafe's Agentic AI Platform, including agent runtimes, model routing, tool registries and shared platform services.
 * Design and build production-grade platform services and developer tooling using Node.js, TypeScript, NestJS and React.
 * Develop reusable AI infrastructure that enables engineering teams to build, deploy and operate AI agents securely and at scale.
 * Work hands-on with LLMs, LangChain/LangGraph and agent orchestration, solving platform challenges around governance, observability and scalability.
 * Own features end-to-end-from architecture and implementation through deployment and continuous improvement.
 * Shape the future of AI engineering at SoSafe by contributing ideas, improving developer experience and influencing platform architecture.


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