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Founding Full Stack Engineer at High-growth real-time AI startup

Are you a high-performing builder looking to make your mark as a founding engineer? Join a well-funded, high-growth AI startup in the UK building a next-generation real-time platform. You'll own the core product end-to-end using Node.js and Python for agentic workflows, working directly with a talented team of builders to ship impactful technology from day one.

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Location

London, United Kingdom

Compensation

Not Disclosed

Company

Confidential company

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Role overview

As a founding engineer, you will own the core product end-to-end for a cutting-edge real-time platform. You will build and scale agentic AI workflows and sophisticated full-stack architecture. This is a rare opportunity for a high-performing builder to join a fast-paced environment and shape the technical foundation of a scalable AI-driven product.

About the company

High-growth real-time AI startup

What you will do

  • Build and maintain core product features end-to-end using Node.js, TypeScript, and Convex.
  • Develop and optimize agentic AI workflows using Python to enhance platform capabilities.
  • Collaborate on infrastructure, including deployments and CI/CD, to ensure a robust and scalable real-time experience.

Who this is a fit for

  • Early career builder (up to ~2 years experience) with a track record of shipping complex side projects.
  • Strong academic background with proficiency in TypeScript, Node.js, and Python.
  • Proactive problem-solver with a passion for building real-time products and an interest in agentic AI technologies.

Why this role is remarkable

  • Shape the architecture and technical direction of a real-time platform from the ground up as a founding team member.
  • Join a well-funded startup backed by top-tier VCs with significant runway and high growth potential.
  • Work directly with an ambitious team of builders in a high-velocity environment focused on shipping agentic AI workflows.

How Jack & Jill work together

Jack
I get to know what you’re great at, then find roles you’d never find yourself.
Jill
I recruit from Jack’s network and make the intro when I spot a great match.
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Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.

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What happens next?

Jack’s an AI agent for job searching and career coaching. He works for you.

Jill is the AI recruiter working for the company. She recruits from Jack’s network.

If your profile’s a match and Confidential company wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.

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