Senior Software Engineer

Join Keith to build the future of legal services; using technology to add speed, consistency and affordability.

Keith is an AI-native and full-stack regulated law firm, initially focusing on disrupting the UK conveyancing market. By leveraging technology, we aim to automate c. 80% of the current human workload - delivering game-changing levels of client service, improved responsiveness, and reduced transaction time duration. We have ambitions to expand into other formulaic process-driven practice areas, targeting a £19B UK total addressable market.

Keith also aims to create a loveable and recognisable brand within legal services - arguably a first.

Keith's been founded by Andy Shovel, Pete Sharman and Sam Tucker. Andy and Pete co-founded THIS (this.co) which in 6 years, has grown into a market-leading plant-based food brand, delivering over £20m in annual sales. THIS has become known for game-changing innovation and highly engaging comms. Sam Tucker is also a serial founder, having previously founded Common Surface, now part of deskbird.

Backed VC and Breega are two europe-leading VC funds who have invested in Keith. Between them, they've also backed Moneybox, Exotec, Thought Machine and many other high-growth start-ups.

About the Role

We're looking for a Senior Software Engineer to lead our engineering team. You'll set the technical direction, make key architecture decisions, and help hire and build out the team as we grow. This is a senior role - you'll have significant ownership over how Keith's platform is built, deployed and secured.

You Will:

• Design and own the architecture of Keith's platform - the state machine, workflow engine, API layer and data model that orchestrate every transaction
• Own infrastructure, deployments and CI/CD - ensure the platform is reliable, scalable and fast as we grow from launch to thousands of concurrent transactions
• Build and maintain security practices appropriate for a regulated law firm - data encryption, access controls, audit logging, penetration testing
• Build and improve AI agent pipelines - document review, correspondence handling, structured data extraction
• Build internal tooling for conveyancers - inbox, document review, approval workflows, transaction oversight
• Help hire and build out the engineering team as we scale
• Work directly with founders and senior lawyers to automate complex legal workflows

We'll be working quickly to get our first product to market and then iterating rapidly to ramp up automation.

About You

• 5+ years building production software, with a strong backend emphasis
• Strong command of Python, TypeScript and React/Next.js
• Experience building and operating scalable, secure systems - you understand infrastructure, observability and deployment pipelines
• Experience with AI agent orchestration frameworks (LangGraph, OpenAI Agent SDK, or similar)
• Strong architectural judgement - you'll be making foundational decisions about the stack, data model and system design
• Comfortable with security and compliance requirements - you've worked in regulated or security-sensitive environments
• Experience hiring and managing engineers
• Based in our London Victoria office 3 days per week, with existing legal right to work in the UK without requiring visa sponsorship

Why Keith

• Join a small, senior founding team building one of the first AI-native regulated law firms from scratch
• Founding team with a proven track record - including founders of one of the UK's fastest growing consumer brands
• Have real ownership and help redefine how legal work gets done
• Collaborate with senior lawyers and technologists to automate complex workflows at scale
• Work at the frontier of AI and law - move fast, experiment, and shape the product