Senior Fullstack Engineer- AI Platform
SoSafe · Remote · United Kingdom Remote · Portugal Remote · Ireland Remote ·
COMPENSATION
€•• – ••k
Listed on the employer's job board (Ashby)
- Senior Fullstack Engineer
- Fully remote (UK/IE/PT)
- Node.js + TypeScript
- AI Platform Infrastructure
- React + NestJS
Join the team developing the AI platform that powers next-generation capabilities across SoSafe's products. You will build shared infrastructure, tooling, and services that enable engineering teams to deploy AI safely and at scale.
Working in a small, autonomous group, you will own features end-to-end and shape the technical direction of the Agentic AI Platform.
What you'll do
- Build core capabilities for the Agentic AI Platform, including agent runtimes and model routing.
- Design production-grade platform services and developer tooling using modern web technologies.
- Develop reusable AI infrastructure to help teams operate AI agents securely.
- Work with LLMs and agent orchestration tools to solve governance and scalability challenges.
- Own features from architecture and implementation through to deployment.
- Influence platform architecture and improve the developer experience.
What you'll need
- Strong experience building full-stack applications with Node.js, TypeScript, and React.
- Hands-on experience with LLMs, AI agents, LangChain, LangGraph, or similar technologies.
- Platform mindset focused on building reusable systems and APIs for other engineers.
- Ability to use AI coding tools while maintaining sound engineering judgment.
- Comfortable working in ambiguity and solving complex problems in a fast-paced environment.
Nice to have
- Experience with developer platforms or distributed systems.
- Knowledge of infrastructure-as-code and cloud-native architectures.
- Background in AI governance.
Stack
- Node.js
- TypeScript
- NestJS
- React
- LLMs
- LangChain
- LangGraph
How you'll work
- Candidates must be based in and authorized to work in the UK, Portugal, or Ireland.
- Flexible working hours.
What you get
- 33 vacation days.
- Access to wellbeing support via Open Up.
- Corporate discounts.
- Virtual events and local meet-up opportunities.
- Tech equipment provided.
- Referral bonuses.
- Dog-friendly headquarters.