Founding Engineer

Jack & Jill/External ATS; Greater London; On-site; GBP 222,000 - 258,000; Full time

Job summary

A fast-growing AI automation startup in London is seeking a Founding Engineer who will work at the forefront of AI development, architecting products that transform recruitment. This role offers an opportunity to collaborate with a team of elite engineers in a high-performance culture, where innovative perks and rapid growth challenge the norm. The ideal candidate should be exceptional at engineering and capable of translating customer needs into production-ready features while owning complex challenges in a dynamic environment.

Benefits

Home cleaning services

Private health insurance

Flexible cash-equity splits

Qualifications

• Track record of high achievement in academic or professional settings.
• Ability to think about customer needs, product outcome, and technology.
• Experience in fast-paced, high-agency environments.

Responsibilities

• Architect and scale sophisticated AI agents using modern tech stacks.
• Direct collaboration with CTO and founders to create AI features.
• Ownership of complex engineering problems in a dynamic environment.

Skills

Exceptional engineering

Product-focused mindset

Collaboration and teamwork

Ability to work in fast-paced environments

Tools

Next.js

TypeScript

Python

Job description

Overview

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Founding Engineer

Salary: £240k+ + Equity

Company Description: Fast-growing AI automation startup

Job Description: Join a high-performance team building the next generation of AI-driven labor market infrastructure. As a Founding Engineer, you will develop agentic products that redefine how talent and companies connect. Working at the bleeding edge of AI, you will ship code at breakneck speed to transform the global recruitment services market from first principles.

Location: London, UK

Why this role is remarkable

• Work at the forefront of the agentic AI shift with a team of elite engineers and former founders

• Backed by top-tier VCs with significant early-stage funding and rapid revenue growth within seven months

• High-performance culture offering unique perks like home cleaning, private health, and flexible cash-equity splits

What you will do

• Architect and scale sophisticated AI agents using a modern stack of Next.js, TypeScript, and Python

• Collaborate directly with the CTO and founders to translate customer needs into production-ready AI features

• Take full ownership of complex engineering problems in a fast-paced, high-agency environment

The ideal candidate

• Exceptional engineer with a track record of high achievement in academic or professional settings

• Product-focused builder who can think about the customer, product, and technology simultaneously

• Ambitious individual who thrives in in-person, high-speed environments and values collaborative excellence

Who are Jack & Jill?

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.

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.

Next steps

1. Visit our website.
2. Click 'Talk to Jack'.
3. Talk to Jack so he can understand your experience and ambitions.
4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.