Lead Full Stack Engineer - Remote, AI-First Startup

Fan3; Greater London; On-site; GBP 85,000 - 120,000; Full time

Job summary

fan3, a venture-backed startup, is building an entertainment ecosystem with NFC items and NFT-powered passes. As a Lead Full Stack Engineer you will shape the greenfield product, make technology choices, and own end-to-end delivery of high-profile apps used by artists and fans.

You will work in a small, fast-moving team, collaborating with designers and product, deploying on Google Cloud, Vercel, and Firebase, and leveraging AI tooling to drive innovation while keeping code clean, scalable, and

Qualifications

• Strong hands-on Next.js and React experience.
• Experience with Vercel deployment and management.
• Backend API development with TypeScript/Node.js on Google Cloud Platform.
• Firebase and NoSQL databases knowledge.
• Agentic engineering with AI tools experience.
• Experience integrating with third-party services.
• Web3 and blockchain familiarity.
• Solid CS fundamentals, testing, and code quality.

Responsibilities

• Design, develop, and maintain high-quality Next.js/React web apps on GCP+Firebase.
• Deploy and manage apps on Vercel.
• Adopt AI-first approaches while understanding system architecture.
• Contribute to React Native/web front-end when needed.
• Build scalable backend systems on cloud/serverless tech.
• Write clean, maintainable code following standards.

Skills

Next.js

React

AI tooling

Agile

NoSQL

GitHub

Testing

UI/UX collaboration

Problem solving

Education

Degree in Computer Science or related field

Tools

Vercel

Google Cloud Platform

Firebase

TypeScript/Node.js

React Native

Job description

fan3, a venture-backed startup, is building an entertainment ecosystem with NFC items and NFT-powered passes. As a Lead Full Stack Engineer you will shape the greenfield product, make technology choices, and own end-to-end delivery of high-profile apps used by artists and fans.

You will work in a small, fast-moving team, collaborating with designers and product, deploying on Google Cloud, Vercel, and Firebase, and leveraging AI tooling to drive innovation while keeping code clean, scalable, and