Full Stack Engineer (£70k-£100k + Equity) at $5.3M Seed Legal AI startup

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Job Title

Full Stack Engineer

Salary

£70k-£100k + Equity

Company Description

$5.3M Seed Legal AI startup backed by Pear VC and Seedcamp

Job Description

You will join a high-growth legal tech firm as an early engineer, architecting agentic systems that transform litigation for Magic Circle law firms. Working directly with Oxbridge-educated founders, you will build full-stack document analysis engines and scale infrastructure that has already achieved 20x revenue growth and $3M ARR trajectory.

Location

London, UK

Why this role is remarkable

• Work at the forefront of agentic engineering, building a "scalpel" AI platform that replaces months of manual work for the world's top 1% of litigators.
• Join a Tier 1 Silicon Valley-backed startup (Pear VC, Seedcamp) that has scaled from $500k to $3M ARR in just two months with 20x YoY growth.
• Collaborate with a high-caliber technical team from Poly AI, Tractable, and Juro in a low-ego, fast-paced environment with a clear path to leadership.

• Architect and scale production-grade full-stack applications that power autonomous agentic systems for complex legal document analysis.
• Collaborate with ML engineers to integrate state-of-the-art LLM capabilities and fact extraction engines into customer-facing features.
• Own the end-to-end lifecycle of critical product features, from initial customer discovery and technical architecture to deployment on AWS infrastructure.

• Proven expertise in the modern stack including Node.js, TypeScript, and Python for both application and AI system development.
• Deep experience with PostgreSQL database optimization and managing scalable cloud infrastructure within the AWS ecosystem.
• An entrepreneurial builder mindset with a track record of shipping complex product features in rapid, high-stakes startup environments.

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.

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.

Next steps

Step 1. Visit the job listing.

Step 2. Click 'Talk to Jack', or go straight there: https://www.jackandjill.ai/jobs/full-stack-engineer-70k-100k-equity-at-5-3m-seed-legal-ai-startup-c13b5213-25f2-4e1d-9478-c4c983e84340?utm_source=linkedin&utm_medium=job_post&utm_campaign=featured_role_c13b5213-25f2-4e1d-9478-c4c983e84340

Step 3. Talk to Jack so he can understand your experience and ambitions.

Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.

Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.

Step 6. If not, Jack will find you excellent alternatives. All for free.

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.