Join a well-funded startup as Founding CTO to build advanced ML/AI systems for automated security research and threat detection. You will design agentic risk management platforms that reason about complex adversary behavior in real time. This is a ground-floor opportunity to own the technical roadmap and shape the engineering culture from day zero.
Founding CTO at VC-backed AI security startup
Are you a PhD-level ML researcher looking to build from the ground up? Join this well-funded London startup as Founding CTO to revolutionize enterprise security through agentic AI, partnering with an experienced founder to build systems that reason about threats like a human analyst. With meaningful co-founder equity and a mission to solve critical risk modeling problems, this is a rare chance to define the intersection of AI and cybersecurity and lead the shift from research to real-world defense impact.
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Location
London, United Kingdom
Compensation
Not Disclosed + Equity
Company
Confidential company
Role overview
About the company
VC-backed AI security startup
What you will do
- Lead the design and implementation of the core ML/AI architecture, building high-performance systems capable of real-time threat modeling.
- Act as the primary technical contributor, writing production-grade code while setting long-term engineering standards and culture.
- Translate complex security research and adversary behaviors into scalable AI agents that help enterprise teams manage risk more effectively.
Who this is a fit for
- Possesses deep ML/AI research credibility, typically demonstrated via a PhD or significant tenure at top-tier research labs.
- Demonstrates a strong desire to transition from research to building, with the technical breadth to own an early-stage startup stack.
- Has a background or strong interest in applying advanced machine learning to cybersecurity challenges like threat detection and risk modeling.
Why this role is remarkable
- True co-founder status with significant equity ownership and the ability to define the core technology and product strategy.
- Work alongside an experienced founder with deep enterprise deployment history, ensuring the product addresses real-world security challenges.
- Tackle high-impact problems by building agentic AI systems that move beyond pattern matching to sophisticated, context-aware reasoning.
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.