You will join a high-calibre team building AlliedOS, the connective platform linking frontlines to factories. As a full-stack owner, you will develop a homegrown manufacturing execution system and a defense procurement marketplace. You will ship fast, iterate with real-world military users, and directly shape the product direction of this critical infrastructure.
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London, United Kingdom / Remote£80k-£130k + Equity
Product Engineer at Notion Capital-backed defense tech startup
Join a mission-critical defense tech startup building the AI-native operating system for Western military production. Founded by a former Royal Marines officer and backed by Notion Capital, this team is replacing outdated procurement cycles with a high-speed platform linking the frontline to the factory floor. As a Product Engineer, you'll earn £80k-£130k plus meaningful equity while owning features end-to-end across a modern TypeScript/React stack. If you are a high-calibre full-stack engineer ready to solve some of the world's most important problems in a non-hierarchical 'circle of peers,' this is your opportunity to build the future of defense infrastructure.
Overview
Role overview
Company
Allied
Defence Technology1-50 employees
Notion Capital-backed defense tech startup building an AI-native OS for military production
Responsibilities
What you will do
- Build and maintain end-to-end features across web and mobile using a modern stack including React, TypeScript, and TanStack Start.
- Develop AI-powered features utilizing OpenAI, AI SDK, and Mastra to automate complex defense procurement and production workflows.
- Collaborate directly with commercial and product teams to translate frontline requirements into a high-performance operating system for government contracts.
Candidate profile
Who this is a fit for
- 5-8 years of full-stack engineering experience with a track record of shipping high-quality products in fast-paced, high-stakes environments.
- Expert-level proficiency in TypeScript and React, with a strong instinct for performance, security, and exceptional user experience.
- Demonstrated ability to self-organize and leverage modern AI development tools like Cursor or Copilot to accelerate delivery and solve complex problems.
What makes it remarkable
Why this role is remarkable
- Work on a global mission to strengthen Western democracies by modernizing the defense industrial base with AI-native technology.
- Join a peer-based, non-hierarchical culture founded by a former Royal Marines officer and backed by top-tier investors like 1991 VC and Notion Capital.
- Extreme autonomy and impact as an early hire, with a meaningful equity stake and the ability to prove solutions in weeks rather than years.
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.
Meet Jack
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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.
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