Join OpenHuman as the first dedicated product engineering hire to build the platform layer for high-stakes decision-making. You will transition technical workflows into a repeatable B2B product, designing clear interfaces for complex AI outputs. This high-ownership role involves full-stack development across Python and React to create durable, trustworthy software.
Founding Product Platform Engineer at OpenHuman
OpenHuman is hiring its first Founding Product Platform Engineer in London to build the product layer for AI systems helping teams navigate uncertainty. Backed by tier-1 European investors, this role offers £120k-£150k and founding equity to shape the architecture of a high-stakes decision platform. You’ll work across the full stack, using Python and React to transform complex workflows into trusted product experiences. If you have 5+ years of experience and strong product judgment, join a fast-moving founding team to define the standards of a new kind of AI company.
Want to apply for this role?
Jack finds you jobs at companies like OpenHuman. Talk to Jack to get considered for roles that fit what you're great at.
Location
London, United Kingdom
Compensation
£120k-£150k + Equity
Company
OpenHuman
Role overview
Every decision that matters is a decision about people.
Yet we make them knowing almost nothing about the people themselves — reducing them to numbers, averages, demographics, to whatever was easy to count.
This has always been the limit: not that people are unknowable, but that we never had a way to understand them at the depth real decisions require. So we guessed — and the cost of guessing about people is paid by people.
We think that limit is ending.
We are building toward a world where the people affected by a decision are present in it, faithfully, before it is made — understood, not flattened into a statistic.
We believe people are knowable without being reduced, and that the largest questions of the coming century — how markets move, how institutions hold, how societies choose — come down to understanding human beings.
It is the most important problem we know of, and the most interesting.
We are assembling a small team across engineering, research, applied AI, and go-to-market.
If understanding people is the work you want to do, come build this with us.
What you will do
- Develop core full-stack features using Python and React, transforming technical prototypes into scalable, well-instrumented product surfaces.
- Architect platform foundations including auth, permissions, and APIs to ensure multi-tenant workspaces operate safely and reliably.
- Build internal tooling and customer-facing interfaces that translate sophisticated AI workflows into clear, navigable, and trustworthy software experiences.
Who this is a fit for
- Has 5+ years of production software experience with strong proficiency in Python, FastAPI, React, and modern TypeScript.
- Demonstrates expert SQL and data modeling skills, comfortable navigating data-heavy environments and modern warehouses like BigQuery or Snowflake.
- Possesses a strong taste for product engineering and the ability to ship reliable cloud systems, ideally with exposure to LLM-powered tools.
Why this role is remarkable
- Founding-level scope to build the product platform layer from first principles alongside a pre-seed team.
- Backed by tier-1 European investors, addressing complex engineering challenges in reliability, data workflows, and AI UX.
- High-impact role with meaningful founding equity and direct influence on the company’s engineering standards and culture.
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 OpenHuman wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.