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Founding Engineer
Job Summary
Advertiser
Salary / Rate
Posted
numi
Neg
19th March 2026
Location
Start Date
London
Type
Job Sector
{}
IT
A pre-seed, founder-led startup is seeking a Founding Engineer to build the "Agentic Financial Ops" layer for the global fintech market. While others build simple chatbots, this stealth-mode venture is embedding autonomous AI agents directly into major B2B platforms—automating invoicing, bill pay, and payroll for SMBs. This is an opportunity to join at the ground floor of a company targeting a $100B market shift. What you will build: The Engine: A white-label, API-first, multi-tenant system designed to embed cleanly and securely into partner ecosystems. The Intelligence: You aren’t just calling APIs; you are treating LLMs as infrastructure. You will build agentic workflows that handle complex financial operations autonomously. The Foundation: You will replace the founder’s initial "vibe-coded" prototype with a robust, production-ready architecture. You decide the stack; you set the engineering culture. The Founders: The Commercial Engine: A domain experts and "straight talkers"…
