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Frontend Product Engineer

TechTree's client
Seed
Salary
£100k – £200k
Work mode
Remote
London, United KingdomRemotePosted 2 weeks ago

What we're looking for

  • Experience in frontend product engineering
  • Ability to design scalable UI patterns
  • Experience with state management
  • Understanding of backend APIs
  • Ability to translate product goals into user-facing workflows

About the role

You will build the user-facing product that makes this company's backend systems and AI agents clear, controllable, and genuinely useful to lawyers working on real cases. This is the layer where trust is earned and where delegation either works or fails.

At a high level, we are building a Cursor-like environment for legal work, where agents can search, reason, and act on documents while the lawyer stays firmly in the driving seat. Your role is to translate what the backend and agents can do into trustworthy UI: workflows, states, review surfaces, and actions that let lawyers confidently decide what happens next.

This is a frontend product engineering role with strong system awareness. To succeed, you’ll need to understand backend APIs and agent behavior well enough to surface the right information at the right time, making agent actions visible, reversible, and easy to reason about while meaningfully improving lawyer productivity.

What you’ll build:
- Agent interaction surfaces: Design and build the interfaces through which lawyers interact with agents: chat, action suggestions, citations, and clear visibility into what an agent did, is doing, or plans to do. This includes reviewable and actionable outputs such as extracted clauses, summaries, research results, and intermediate work.
- Document workflows: Build user interfaces for document review and editing in DOCX, including diffs, apply or reject flows, comments, and collaboration. These workflows must reflect legal reality, support multiple collaborators, and meet high expectations for correctness.
- Workflow UX: Create dashboards, matter views, timelines, and task states that help lawyers navigate complex cases without friction, keeping context clear as work evolves over time.
- Frontend foundations: Develop scalable UI patterns, state management, and abstractions in Next.js and TypeScript that allow new workflows and agent capabilities to be shipped quickly without rewrites.

Compensation & benefits

Competitive salary and meaningful equity
Unlimited budget for AI coding agents and tools
Annual company offsite in Mallorca
Regular team gatherings in offices
Remote work between GMT-5 and GMT+1. You can also choose to work from offices in London or New York.

Equity details

Type: equity
Details: Meaningful ownership: Competitive salary and meaningful equity, with real responsibility and impact from day one.

About TechTree's client

This company is building the next generation of legal services. They’re an AI-native law firm, built from day one around AI and data. Legal is a trillion-dollar global industry that still operates as if software never happened. Lawyers spend too much time on low-leverage work and too little on judgment, reasoning, and outcomes. AI is now rapidly realigning what’s possible. They believe AI doesn’t replace legal judgment - it replaces the operating model around it. Firms that rebuild around this shift will define the next era of legal services; others will struggle to justify their costs as AI reshapes client expectations. They started in April 2025 and raised a $2M pre-seed followed by an $7M seed led by a tier-1 US VC. Their product is used daily by our own lawyers on real cases, creating a tight feedback loop between product and practice. With early customers and a world-class engineering team taking shape, it’s still day one - come build with them.

Seed

Funding

Total funding: $9M
Last round: $7M · seed

Investors

tier-1 US VC

Team

  • founders
  • a small group of senior engineers

Ready to apply?

Submit your application today.

Frontend Product Engineer
£100k – £200k