Staff Backend Engineer | Ai Fintech Start-Up | Remote Eu

5+ years’ backend engineering experience (language agnostic) Deep experience with complex business logic products Strong database skills: PostgreSQL, SQL, ORMs, migrations and schema design Experience deploying on AWS (or similar), with solid CI/CD and production-readiness fundamentals Hardcore work ethic and high agency Pragmatic, fast-moving and curious, someone who makes decisions based in reality, not theory Python and a modern web framework (FastAPI, Flask or Django) is a bonus

$140k-$250k base + equity B2B or EOR VC-backed | Rapidly scaling | Significant equity ownership High-speed, high-trust environment | Your feedback shapes the product directly #J-*****-Ljbffr

Santiago de Compostela, La Coruña, España

I’m working with a VC-backed, rapidly scaling AI-native fintech start-up that is rebuilding the financial system of record for modern businesses. Backed by top-tier US investors, they’ve grown quickly in a short space of time, serving customers from high-growth companies through to publicly traded enterprises. You’ll be building and shipping end to end: designing backend systems and APIs that run real-time, business-critical accounting logic, owning everything from architecture and CI/CD through to testing and monitoring. The team deploys daily, moves fast and never waits for permission.