Full Stack Engineer

Job description

Founding Engineer (London / Hybrid) - JavaScript

We’re an early-stage startup building an AI-driven platform in the capital markets space, with a clear mission: use AI to radically reduce the complexity of a traditionally under-served function.

Our MVP is live, we have early customers, and strong relationships across the industry. Now we’re looking for a Founding Engineer to help take the product from early traction to scale.

This is a high-ownership role working directly with an experienced CTO. You’ll be deeply involved in technical decisions, product direction, and execution from day one.

What you’ll do

• Own technical execution across the stack
• Build and ship core product features end-to-end
• Help evolve an MVP into a scalable, production-ready platform
• Use AI coding tools to move fast without cutting corners

What we’re looking for

• Strong full-stack engineer with a product mindset
• Comfortable with TypeScript, React, Node, and modern web frameworks
• Curious about LLMs and AI-driven workflows
• Someone who’s built things independently and enjoys ownership
• Bias toward speed, learning, and delivery

Experience with LLM APIs, cloud infrastructure, RAG, or agent-based systems is a bonus, but not required.

What we offer

• Competitive salary plus equity
• Meaningful ownership and real technical influence
• A small founding team with deep industry experience

If you enjoy building from scratch and want to help shape something from the ground up, drop a comment or send a message.

Extra information

Status

Open

Education Level

Secondary School

Location

City of London

Type of Contract

Full-time jobs

Published at

09-02-2026

Profession type

Accountancy

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English