As a founding engineer, you will bridge the gap between complex AI agents and professional workflows. You will build end-to-end features that allow experts to interact with and verify agentic outputs for large-scale infrastructure projects. This role combines full-stack development with sophisticated LLM engineering to transform how critical global infrastructure is managed and financed.
Founding AI Product Engineer at well-funded AI infrastructure startup
Help accelerate global energy infrastructure by building the AI-driven operating system for large-scale projects. As a founding engineer, you'll design complex agent architectures and human-in-the-loop workflows that replace manual professional services with intelligent software. This is a high-ownership role for a full-stack expert with deep LLM experience, backed by elite VCs and AI leaders, based in a top London office.
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Location
London, United Kingdom
Compensation
Not Disclosed
Company
Confidential company
Role overview
About the company
Well-funded AI infrastructure startup
What you will do
- Design and deploy production-scale LLM agents and multi-agent workflows using Python and modern AI orchestration tooling.
- Build responsive, data-heavy frontend interfaces that allow users to review, correct, and verify complex AI-generated reports.
- Work across the full stack to turn ambiguous user needs into reliable, production-ready features that drive revenue.
Who this is a fit for
- At least 4 years of professional engineering experience with a proven track record of shipping and maintaining production-scale software.
- Meaningful experience building agent architectures, managing context engineering, and designing effective human-in-the-loop AI workflows.
- Strong technical fundamentals evidenced by a top-tier university degree, success in hard competitions, or ownership of major open-source projects.
Why this role is remarkable
- Join as a founding engineer at an early-stage venture backed by top-tier global AI leaders and VCs.
- Solve a massive bottleneck in the global energy transition by building the first “service as software” platform for infrastructure.
- High-ownership role where you design human-in-the-loop AI systems used by professionals to deliver high-stakes technical analysis.
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.