You will build AI-native tools that help the world’s largest companies modernize tens of millions of lines of legacy code. Working across the full stack in Fitzrovia, you will prototype rapidly, tune LLM prompts, and ship production-quality features that simplify complex agent pipelines for massive enterprise ERP systems.
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Product Engineer at well-funded enterprise AI startup
Are you an AI-native engineer who loves shipping product? Join a well-funded startup in London tackling a massive, underserved problem in enterprise IT. You will work across the full stack to build sophisticated LLM agent pipelines that modernize millions of lines of legacy code. If you have exceptional product instincts and a hunger to build something enduring alongside a world-class team, this is the role for you. High agency and rapid iteration are the name of the game here.
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This role is no longer actively hiring, but Jack can still help you discover similar open roles that fit.
Location
London, United Kingdom
Compensation
Not Disclosed
Company
Confidential company
Role overview
About the company
Well-funded enterprise AI startup
What you will do
- Design and ship full-stack features using TypeScript, Kotlin, and generative AI tooling.
- Translate raw customer feedback and behavioral insights into seamless AI-powered product experiences.
- Build and optimize complex LLM agent pipelines to make legacy code maintenance feel magical.
Who this is a fit for
- Exceptional software engineer with deep intuition for prompting, tuning, and integrating LLMs into production.
- High-agency builder who thrives in ambiguity and has a track record of shipping impactful products.
- Collaborative teammate who enjoys working in person in Central London to build an enduring company.
Why this role is remarkable
- Solve massive scale technical debt by building the interface between LLMs and enterprise users at scale.
- Join a well-funded startup backed by top-tier VCs with massive inbound customer demand.
- High-agency environment where you own the full product experience from UI to complex agent logic.
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.
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.
Meet Jack
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.