Senior Software Engineer

Explore Group

Greater London

On-site

GBP 100,000 - 150,000

Full time

14 days+

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Benefits offered by this job

Base salary of £100,000 – £150,000

Meaningful early-stage equity

Private medical cover

Choice of AI tooling

London-based role

Job summary

A pioneering legal tech startup in London seeks a Staff or Senior Product Engineer to join an early-stage team. In this dynamic role, you'll build and ship features from day one, work directly with users to understand their needs, and shape the product direction in a fast-paced environment. Ideal candidates have experience in startups, are proficient in TypeScript, and have a passion for AI-driven solutions. The position offers competitive remuneration and meaningful equity.

Qualifications

Experience in early-stage startups with high ownership.
Ability to think in terms of user problems, not just technical.
Scalable and maintainable TypeScript codebases experience.

Responsibilities

Build and ship production features quickly.
Work closely with users to validate solutions.
Define product strategy in a fast-moving environment.
Design scalable TypeScript systems.
Build AI-powered workflows and systems.

Skills

experience at early-stage startups

user-centric thinking

complex TypeScript codebases

end-to-end product and engineering

AI-assisted development workflows

building LLM-powered systems

knowledge of TypeScript monorepo

proficiency in React, tRPC, Tailwind

event-driven workflows

Google Cloud Platform deployment

Job description

We’re working with an early-stage, venture-backed legal technology startup on a mission to transform one of the UK’s most broken consumer experiences: the legal process behind property transactions.

This market is large, fragmented, and outdated, with high failure rates, poor transparency, and processes still reliant on manual workflows. The company is building the UK’s first AI-native law firm, starting with property transactions and scaling towards a full-service, AI-first legal platform with global ambitions.

The business is backed by a leading early-stage VC fund and experienced angel investors, and led by a founder who has previously built and scaled a regulated fintech business to multi-billion-pound lending volumes. That experience provides a strong foundation for navigating regulation while moving quickly in a traditionally slow industry.

The Role

This is an opportunity for a Staff or Senior Product Engineer to join as one of the earliest engineers in the business. You’ll be part of a small, high-calibre team of generalists who value product thinking, speed, and engineering craft.

From day one, you’ll have significant ownership, shaping product direction, shipping to production quickly, and working directly with users to define what should be built. Requirements won’t always be fully formed; you’ll be expected to explore problems, test ideas, and iterate fast.

This role reports directly to the founder and offers genuine influence over both product and technical direction.

What You’ll Do

Build and ship production features from your first week
Work closely with users to understand pain points and validate solutions
Help define product strategy in an ambiguous, fast-moving environment
Design and scale TypeScript-based systems across the stack
Build AI-powered workflows and agent-based systems that go beyond basic prompting
Set engineering standards and raise the bar as the team grows

You May Be a Good Fit If You