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Full Stack Engineer at Magentic

Join a world-class team from OpenAI, NASA, and Meta to redefine how the world’s largest manufacturers manage $3 trillion in supply chains. As a front-end leaning Full Stack Engineer at this Sequoia-backed startup, you'll own the product experience for next-generation AI agents. With a competitive £110k-£120k salary plus equity, this is a rare opportunity to shape an elite technical culture from the ground up while shipping AI products that handle complexity humans find overwhelming. If you have 6+ years of experience and a passion for polished UI/UX, apply to join this London-based mission.

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Magentic

This role is no longer actively hiring, but Jack can still help you discover similar open roles that fit.

Location

London, United Kingdom

Compensation

£110k-£120k + Equity

Company

Magentic

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Role overview

Join a high-performance team of 12 experts from OpenAI, NASA, and Meta to build next-generation agentic systems. You will lead the front-end development of AI tools that manage complex procurement workflows for the world’s largest manufacturers. This is a high-ownership role where you will define the interface for a $3 trillion market.

Software

Sequoia-backed AI agent startup transforming global manufacturing supply chains

What you will do

  • Own the development of new user-facing features end-to-end using React, TypeScript, and Tailwind, maintaining a robust design system.
  • Translate powerful AI capabilities into polished, intuitive product experiences for enterprise users as the lead voice on UI/UX and interaction patterns.
  • Collaborate directly with users and cross-functional teams to solve loosely defined problems, moving from prototype to production-ready solution in days.

Who this is a fit for

  • Has 6+ years of professional software engineering experience with deep expertise in TypeScript and React, and comfort working in Python.
  • Possesses a strong design sensibility and product taste, capable of making independent UI/UX decisions for complex enterprise B2B workflows.
  • Thrives in a high-speed startup environment where they can independently extract requirements and deliver high-polish code without dedicated design support.

Why this role is remarkable

  • Work at the bleeding edge of AI alongside a founding team with pedigree from OpenAI, Meta, Revolut, NASA, and McKinsey.
  • Backed by world-class investors like Sequoia Capital, tackling a massive $3tn market opportunity by replacing manual spreadsheets with agentic systems.
  • Enjoy an elite early-stage culture with high ownership, shipping daily, and participating in annual fully-funded team retreats to recharge and bond.

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 Magentic wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.

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