Jack & Jill
Founder's Associate (£110k + Equity) at Refractal
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Job Title
Founder's Associate
Salary
£110k + Equity
Company Description
Refractal is a London-based seed-stage startup building critical security infrastructure for autonomous systems. Recognized by MIT’s CSAIL Alliances and Google’s Gemini Cybersecurity Startup Forum, the team develops adaptive defense tools to protect agents from offensive cyber operations, achieving detection speeds 11x more efficient than current market alternatives.
Job Description
As Founder's Associate, you will partner directly with Refractal’s co-founders to navigate the intersection of technical research and commercial strategy. You’ll tackle high-impact problems across operations, product development, and customer engagement. This is a high-ownership role designed for a versatile generalist ready to build the defense layer for the AI era.
Location
London, UK
Why this role is remarkable
- Work directly alongside founders with elite pedigrees from MIT, NASA, and top-tier VC, gaining a front-row seat to scaling a category-defining AI security company.
- Join a mission-critical startup tackling the urgent 2026 shift where autonomous agents require specialized security infrastructure beyond simple model alignment.
- Benefit from Refractal's unique market position, supported by Google’s Gemini Cybersecurity Startup Forum and validated by MIT’s CSAIL Alliances program.
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What You Will Do
- Collaborate across research and product to synthesize complex information, helping the founders make strategic decisions on threat vectors and pipeline metrics.
- Own end-to-end operational projects, from building internal data pipelines to shaping high-stakes conversations with government defense teams and enterprise customers.
- Act as a versatile force multiplier for the executive team, bridging the gap between technical depth and commercial execution in a fast-paced environment.
The ideal candidate
- Proven analytical and research background with the ability to synthesize complex data into actionable strategy, likely from a startup, consulting, or investing background.
- Deep curiosity for AI and cybersecurity with a generalist mindset, comfortable switching between technical research and commercial operations with minimal direction.
- Thrives in high-ambiguity environments and possesses the grit to own problems end-to-end while working onsite five days a week in London.
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
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How does this work?
- Jack: An AI agent for job searching and career coaching. He works for you.
- Jill: 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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