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Term: Full Time

$-107-160 + equity

Location: Hybrid London

Vertical: Legal Tech

Role: Founding Engineer--AI

Job Overview

As a Founding Engineer (Full Stack) for our AI Platform for Litigation, you'll play a crucial role in designing and implementing a cutting-edge system tailored for high-stakes legal environments. You'll work closely with legal professionals to integrate AI-driven solutions that enhance litigation processes. Comprehensive Stack Contribution: Lead initiatives across cloud infrastructure, Python backend, and Next.js frontend, while managing large datasets with PostgreSQL and Azure-hosted LLMs.

Responsibilities

This is a founding full-stack engineering role. You’ll join The group as one of the first employees and help build the AI platform that powers litigation at leading UK and US law firms.

What you’ll do:

• Contribute across the entire stack, from cloud infrastructure to prompting to UX – including Python backend, Next.js + TypeScript frontend, PostgreSQL, and Azure-hosted LLM workloads with CI/CD pipelines (GitHub Actions, IaC such as Bicep).

• Collaborate closely with litigators and knowledge workers to understand how lawyers work, what they need, and how The group can fit into their workflows.

• Architect and scale document ingestion and processing pipelines to power fast, accurate search, summarisation and data extraction over large volumes of legal documents.

• Design and implement intelligent, multi-step agent workflows that can autonomously handle complex legal tasks – from surfacing key testimony to generating fact chronologies and spotting inconsistencies in filings.

• Design and bring to life intuitive, AI-native user experiences tailored to litigation workflows, in partnership with the founders and early customers.

• Improve system performance, stability and observability as we scale to more cases, larger datasets and additional firms.

• Help shape our engineering culture and team – from best practices and code standards to interviewing, hiring and mentoring future engineers.

Qualifications

• 3+ years of experience building and shipping production web applications (full-stack), ideally in startups or small, high-ownership teams.
• Strong backend experience with Python (or similar), PostgreSQL and cloud infrastructure (Azure preferred; AWS or GCP also relevant).
• Frontend experience with modern TypeScript frameworks (Next.js / React) and an eye for building clean, intuitive product experiences.
• Experience designing and operating data pipelines or distributed systems that handle large volumes of text / documents.
• Comfort working with LLMs and applied AI – prompting, integrating model APIs, and thinking carefully about correctness, reliability and UX for AI-powered features.
• Excellent product judgement, communication skills and attention to detail – you’re comfortable talking to demanding users and turning their feedback into shipped features.
• High agency and bias for shipping; you like owning problems end-to-end and seeing your work used in real cases.
• Bonus: interest or background in legal tech, disputes, or working with professional services users.

Ideal Candidate

Ideal Candidate Profile

• Driven and self-directed – you take ownership of hard problems, operate with high agency, and care deeply about getting to a great outcome for demanding users.
• Product-obsessed full-stack builder – you’re as comfortable in Python/Postgres as you are in TypeScript/React, and you enjoy sweating the UX details that make AI feel reliable and usable.
• User-centric communicator – you like talking to lawyers, partners and associates, translating messy workflows into clean technical systems, and iterating quickly based on feedback.
• Excited by AI in high-stakes domains – you want to push the limits of LLMs in production while caring deeply about accuracy, security and reliability for billion-pound disputes.
• Bonus: prior experience in legal tech, fintech, or other professional-services products where users are smart, time-poor, and extremely quality-sensitive.

Our Mission

The group is an AI productivity platform built for litigators. Litigation teams use the group to analyze case files, answer case-specific questions and draft documents tailored to each dispute. By automating manual workflows across the life cycle of a case, The group helps lawyers find key evidence faster, streamline case management and save 10+ hours per week on common litigation tasks.

Company Culture

The group is a small, high-ownership team of three co-founders with deep technical and disputes expertise. They’re building a category-defining AI platform for high-stakes litigation, working with major UK and US law firms that trust them with highly sensitive case files. The culture is product-driven and security-obsessed: engineers talk directly to users, own features end-to-end, and care deeply about accuracy, reliability and speed. Backed by Y Combinator and other top investors, the team is focused on shipping quickly, learning from demanding users and setting a new standard for legal AI.

What you can expect

Day to Day

You’ll spend most of your time designing, building, and operating the full-stack systems that power’s AI platform for high-stakes litigation. Your work ships quickly to elite UK and US law firms and is used on live cases within days.

In practice, that looks like:

• Contributing across the stack – from Python backend and document pipelines to Next.js + TypeScript frontend, PostgreSQL, and Azure-hosted LLM workloads (with IaC + CI/CD).
• Collaborating directly with litigators and knowledge workers to understand how they run disputes today, where the bottlenecks are, and how The group can slot into their workflows.
• Designing and scaling ingestion, search and summarisation pipelines over large volumes of pleadings, transcripts, evidence, and orders.
• Building intelligent, multi-step agent workflows that automate complex legal tasks, while keeping humans in the loop for high-stakes decisions.
• Iterating rapidly based on user feedback – instrumenting features, debugging real cases, and improving reliability and performance as more firms and matters come onto the platform.

Team

You’ll join a small, senior founding team that blends deep AI expertise with top-tier litigation experience.

• You’ll work day-to-day with the technical founders on architecture, roadmap, and implementation, and partner closely with lead to understand how litigators actually use the product in high-stakes cases.
• The team is small, high-ownership, and product-driven – everyone ships code, talks to users, and has a strong voice in what gets built next.

Growth

This is a founding-level role with a lot of surface area and real upside:

• Own major parts of The group’s architecture and product from day one and shape how the core litigation platform evolves over the coming years.
• Help define engineering culture from scratch – everything from code standards and observability to how we run interviews and onboard future engineers.
• Build deep relationships with elite UK and US law firms and see your work used on complex, cross-border disputes that matter.
• Grow into a tech lead / founding-team engineering leader as the company scales – with meaningful equity in a YC-backed, category-defining legal AI company.