Senior Software Engineer

Senior Software Engineer

Build from Day Zero

London, Equity from day 1

You’ve built things from scratch. Now build the thing.

This is your chance to join a well-funded AI start-up on a mission to reinvent how accountants work with Excel, automating painful workflows with no-code tools and AI smarts. It's early, it’s raw, and it’s all to play for.

You’ll work directly with two experienced founders, shape the product and engineering culture, and ship fast. There’s real capital behind this (multi-million seed round from a top-tier VC), but zero corporate baggage.

It's not essential that you have previously been a founding engineer, but they do need you to understand an early stage start-up environment and have the technical skills to build alone when needed.

This is about believing in becoming a fully committed part of building something great!

Why this one’s different

True blank canvas

Your fingerprints will be all over the codebase, product and tech stack

Equity worth caring about

Take real ownership in the company from day one

No LLM hype machine

Just practical, user-first AI applied to real problems

You’ll thrive here if

You’re fluent in TypeScript + Next.js , and you’ve shipped real product at pace

You’ve worked in start-ups or fast-moving tech teams

You think like a builder, not just an engineer — product-focused, high agency, always shipping

You’re excited by ambiguity and want to help define not just what gets built, but why

Location and setup

Hybrid from London

Minimum 3 days per week in the office

Must have the right to work in the UK

This isn’t a job. It’s a shot at being the one who built it all.

Curious to learn more? Drop your CV or just reach out — let’s chat.