Founding Product Engineer at Briefcase
Jack & Jill/External ATS • london, england • Posted June 18, 2026
About the Role
Job Title
Founding Product Engineer
Company Description
Briefcase - AI-driven system of record automating accounting workflows
Job Description
Join as a founding engineer to build a next-generation system of record that leverages custom AI agents and a bespoke data platform. You will redefine manual accounting workflows from the ground up, working directly with the founders to ship fast, iterate on customer feedback, and own high-impact projects from conception to delivery.
Location
London, UK
Why this role is remarkable
- Founding team equity and influence provide significant financial upside and the chance to shape the company's core culture and technical DNA.
- You will push the frontier of financial services by building industry-leading AI agents within a product-obsessed, high-velocity engineering environment.
- Direct collaboration with founders on a system of records platf...