As a founding-tier engineer at Warden AI, you will build the core architecture of a platform ensuring AI fairness and transparency. Partnering directly with the CTO (ex-Monzo Staff Engineer), you will own the full lifecycle—from prototyping fairness modules to hardening production-grade compliance reporting for global enterprise HR vendors.
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London, UK£100k-120k+ + Equity
Featured roleLondon, UK£100k-120k+ + Equity
Product Engineer at Warden AI — VC-backed AI Assurance platform
Warden AI is hiring a Product Engineer to join their founding team in London. Backed by investors from Playfair, Monzo, and Onfido, Warden is building the essential governance layer for AI in HR—ensuring systems are fair, transparent, and compliant with new global regulations. Working directly with the ex-Monzo CTO, you will own the full product lifecycle from prototype to production, building the tools that major platforms like Greenhouse and Beamery use to audit their AI models. If you are a high-agency generalist ready to tackle one of the most important challenges in the AI era, this is your role.
Overview
Why this role stands out
Company
Responsibilities
What you will do
- Design and ship end-to-end features using TypeScript, React, and Python to analyze large datasets for AI bias and factual accuracy.
- Partner directly with customers to implement reliable API connectors and tailor integration strategies for leading AI talent platforms.
- Build automated data pipelines and instrumented monitoring to generate real-time audit reports and public trust dashboards for enterprise clients.
Candidate profile
Who this is a fit for
- A versatile product-minded generalist with a track record of shipping production-grade services and data pipelines in high-growth startup environments.
- Technically proficient in TypeScript, Next.js, and Python, with a pragmatic approach to balancing rapid prototyping with robust, maintainable architecture.
- Exceptional communicator who thrives in ambiguity and is excited to shape the future of responsible AI through fairness and transparency.
What makes it remarkable
Why this role is remarkable
- Join a high-calibre founding team with leadership experience from Monzo and Onfido, backed by top-tier investors including Playfair Capital and founders of Codat and Revolut.
- Solve a mission-critical global problem as regulation like the EU AI Act and NYC bias laws move from guidance to strict enforcement.
- High-autonomy environment where you influence the tech stack and leverage cutting-edge AI tools like Cursor and Claude to ship impactful features at pace.
Jack & Jill
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.
About Jack & Jill
Meet Jack
Jack gets to know what you are great at, what you want next, and makes sure Jill considers you for the right opportunities.
How does this work?
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 it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack