Join a high-performance team of five building the future of the web. As a generalist Product Engineer, you will ship features across the full stack to transform static websites into intelligent, real-time AI agents. You will work directly with the co-founders to create personalized, high-conversion experiences for every visitor.
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Product Engineer at Architect
Are you ready to rebuild how the internet works? Architect is looking for a Product Engineer in London to help turn every website into a living AI agent. Backed by £3.5M and working directly with the co-founders, you'll ship full-stack features that personalize the web in real-time. If you are a TypeScript expert who cares about the 'beautiful piece of wood on the back' and wants to join a high-growth seed-stage startup as an early hire, this is the role where you can define a new category and have massive technical ownership.
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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
£70k-£130k + 0.1%-1% Equity
Company
Architect
Role overview
Software5-15 employees
Architect - Seed-stage AI startup rebuilding the internet
What you will do
- Ship end-to-end features across a modern stack including React, TypeScript, Node.js, and Temporal.io on GCP.
- Design and implement AI agent evaluations and integrations to ensure every generated website is unique and optimized for conversion.
- Take full ownership of outcomes, from architecting authentication systems to building complex frontend page experiences and reinforcement learning models.
Who this is a fit for
- Proven track record as a product-focused generalist with deep expertise in TypeScript and service-oriented backend architectures.
- Obsessive about craft and the "beautiful piece of wood on the back," writing maintainable, high-quality code at a rapid startup pace.
- Strong independent thinker with an interest in AI agents, LLMs, or workflow orchestration tools like Temporal.io.
Why this role is remarkable
- Join as a founding-level engineer at a company defining a new category of living, breathing web experiences that adapt in real-time.
- Backed by £3.5M from top-tier investors including Project A, Concept Ventures, and Insiders Ventures to rebuild the fundamental architecture of the internet.
- Massive technical ownership and impact while working in an intense, high-craft, in-person environment in the heart of London.
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 Architect wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.