Senior Full-Stack Engineer – AI-Driven Finance (Equity)

Company: Junior AI
Apply for the Senior Full-Stack Engineer – AI-Driven Finance (Equity)
Location: London
Job Description:

Junior is building an AI operating system for investment research. You will own features end to end across the frontend, backend and data layers, shipping on a weekly cadence and working closely with paying customers in London.

You’ll be a strong engineer with 5+ years, deep TS/Next.js and PostgreSQL expertise, and the ability to ship polished React interfaces while maintaining a client-facing mindset.

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Posted: September 24th, 2026