Join Crumb as our first dedicated engineering hire to build agentic AI tools and a marketplace for in-house legal teams. You will own the product end-to-end, from frontend to infrastructure, working directly with the technical lead. This is a founding-level role where you will ship features that automate complex legal workflows and eliminate manual processes.
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London, UK£50-70K + Equity
Featured roleLondon, UK£50-70K + Equity
Software Engineer at Crumb — Legal AI and Marketplace
Join Crumb as a founding Software Engineer and build the future of legal tech. We're moving from a fractional General Counsel firm to an AI-powered marketplace and agentic toolset for in-house lawyers. If you're a builder who thrives on end-to-end ownership across React, Node, and AWS—and wants to ship high-impact features without a PM in the room—this is your chance to shape a startup from its earliest days in Hoxton or remotely.
Overview
Why this role stands out
Company
Crumb - Legal AI and Marketplace
Responsibilities
What you will do
- Design and build end-to-end features using React, Node.js, and TypeScript, moving from user problem to production code without PM intervention.
- Develop and maintain complex multi-step workflows, background jobs, and webhook-driven integrations to automate manual legal tasks.
- Architect and secure our AWS cloud environment, ensuring the platform is scalable and resilient as we expand our user base.
Candidate profile
Who this is a fit for
- Proven experience shipping production software with React and Node.js/TypeScript, with a strong emphasis on owning systems end-to-end.
- Hands-on expertise with AWS infrastructure, production webhooks, and managing asynchronous background jobs or scheduled tasks.
- A true builder mentality with strong product intuition, comfortable using AI coding tools to accelerate development in an ambiguous, fast-paced environment.
What makes it remarkable
Why this role is remarkable
- Founding engineer position with total ownership over the product roadmap, technical architecture, and engineering culture from day one.
- Transition from a successful fractional General Counsel firm into a high-growth tech platform with a front-row seat to industry pain points.
- High-impact work building sophisticated agentic AI tools that solve real-world efficiency problems for legal teams at venture-backed companies.
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.
About Jack & Jill
Meet Jack
Jack gets to know what you are great at, what you want next, and makes sure Jill considers you for the right opportunities.
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.
Jack