Senior Backend Engineer – Hybrid & AI-Powered Platform

Company: Fi
Apply for the Senior Backend Engineer – Hybrid & AI-Powered Platform
Location: London
Job Description:

9fin is seeking a Senior IC Engineer to own systems design and drive backend development in a cross-functional team. You will mentor junior engineers and shape data flows from storage to API endpoints, applying best-practice validation and testing.

You’ll work on Python-based backend services (FastAPI) on AWS, with automated tests, and a strong emphasis on code quality and collaboration across product, client success, and editorial teams.

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Posted: October 12th, 2026