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Cofounder-in-Residence (Defence) at global venture builder

Are you an early employee at a breakout defense tech company ready to launch your own category-defining venture? This unique five-month program in London and San Francisco provides the upfront investment, curated cofounder matching, and global network needed to build the next generation of dual-use technology. We are looking for elite operators who have shipped real products under constraints and are ready to transition into a founder role with backing from a world-class venture builder and a portfolio worth billions.

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Location

London, UK & San Francisco, United States

Compensation

Not Disclosed

Company

Confidential company

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Role overview

Join a premier venture builder to launch a category-defining defense technology company. Over five months in London and San Francisco, you will find a world-class cofounder and receive substantial pre-seed investment to build software-defined hardware or autonomous systems. This program leverages a global network to help elite operators transition into high-impact founders.

About the company

Global venture builder for deep tech

What you will do

  • Collaborate with a curated pool of high-potential individuals to identify and validate a technical cofounder partnership.
  • Develop a technical thesis and build a prototype for a defense or dual-use technology company.
  • Pitch for significant investment to scale your venture through a global network of top-tier venture capitalists.

Who this is a fit for

  • Former early employee (#1-10) at a breakout defense, autonomy, or aerospace company with a history of shipping core products.
  • Deep technical capability and a builder instinct, capable of executing exceptionally within tight resource constraints.
  • Driven by a mission to solve national security challenges through software-defined hardware or autonomous systems.

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Why this role is remarkable

  • Receive substantial pre-seed investment and an equity-free living grant to build your own defense startup from the ground up.
  • Access an elite ecosystem backed by legendary technology founders and a portfolio worth billions of dollars.
  • Benefit from a structured transition from early-stage operator to founder with dedicated mentorship and cofounder matching.

How Jack & Jill work together

Jack
I get to know what you’re great at, then find roles you’d never find yourself.
Jill
I recruit from Jack’s network and make the intro when I spot a great match.
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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.

Learn about Jack

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