Jack & Jill
Senior Engineer (AI Governance) (£130k + Equity) at StackOne
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Job Title
Senior Engineer (AI Governance)
Salary
£130k + Equity
Company Description
StackOne is a $24M VC-backed London tech company, supported by GV and Workday Ventures, building the AI Integration Gateway for SaaS products.
Job Description
You will lead the development of StackOne's governance layer, creating the essential security infrastructure for AI agents accessing enterprise systems. By building tools for enrollment, provisioning, and policy enforcement, you'll ensure agentic integrations are secure, compliant, and identity-bound, effectively defining the standards for how enterprises safely deploy AI at scale.
Location
London, UK
Why this role is remarkable
- Shape the fundamental security architecture for the agentic era, building the AI-equivalent of MDM and API gateways.
- Join a high-growth startup backed by top-tier investors like GV and Workday Ventures with $24M in total funding.
- Work in a high-ownership senior IC role reporting directly to technical leadership on a strategic pillar of the roadmap.
What You Will Do
- Design and implement a robust provisioning lifecycle for tool access, covering enrollment, rotation, and revocation across managed auth layers.
- Build high-performance policy and rules engines to enforce runtime access controls for AI agents based on identity and context.
- Develop continuous posture monitoring and telemetry systems to detect anomalies and surface risky scopes within connected SaaS ecosystems.
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The ideal candidate
- Extensive experience building production-grade platform infrastructure such as API gateways, MDM systems, or EDR platforms.
- Deep technical expertise in identity systems like OAuth, OIDC, and SCIM, alongside the design of complex policy-driven access control engines.
- Strong software engineering fundamentals with a proven ability to own mission-critical systems end-to-end within the request-path of high-traffic environments.
Who are Jack & Jill?
- 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.
- 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.
Get help with your application
Your very own career expert that helps elevate your application to the next level.
How does this work?
- Jack is 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.
We never post fake jobs
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.
Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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