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.
Back to all jobs
Find a job withJack
This job is no longer actively hiring. Open Roles to see active jobs.
London, United KingdomNot Disclosed
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.
Overview
Role overview
Company
About the company
High-growth real-time AI startup
Responsibilities
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.
Candidate profile
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.
What makes it remarkable
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.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 14 million jobs daily and introduces you directly to hiring managers.
How does this work?
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 it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack