Full Stack Engineer (Python and React)

Full Stack Engineer

LegalTech / GenAI

London (5 days onsite)

Between £70,000 - £180,000 + Equity

The Company

My client are a fast-growing legal-tech startup applying Generative AI to the entire IP lifecycle - patents, trademarks, and legal documentation. They build real production systems used by 400+ IP teams globally, including top law firms and major enterprises.

Why they stand out:

• Series B funded, £55m raised
• 10x+ ARR growth in the last year, now eight figures
• Already profitable
• Scaling rapidly: ~20 60 people in London this year

What You'll Work On

• AI-powered legal drafting & document editing
• Vector search & citation systems
• Patent litigation tools (claim charts, large-scale analysis)
• Professional-grade legal workflows (not just chat UIs)

The Role

They're hiring senior Full Stack Engineers, open to backend- or frontend-leaning profiles.

• Build and scale core backend foundations
• Design APIs and data systems for global scale
• Work closely with founders on product direction
• Own complex UIs for AI-driven legal workflows
• Heavy work with WYSIWYG editors (TinyMCE / CKEditor)
• Still hands-on with backend to deliver end-to-end features

What They're Looking For

• Strong Python and/or TypeScript and React
• Solid full-stack fundamentals
• Top academic background preferred
• Comfortable moving fast in a startup environment
• Happy being in the office 5 days a week