Senior Platform & Backend Engineer – Python, AWS, Data APIs
Posted
Summary
Senior backend/platform engineer building scalable REST data APIs (FastAPI) and large-dataset access layers (Pandas, Parquet/Arrow, DuckDB) for institutional investor products. Owns the identity layer (OAuth2, JWT, API keys) in a multi-tenant SaaS on AWS, plus data services and occasional frontend work.
Theia Insights is building foundational financial intelligence products for institutional investors. This role focuses on producing reliable, scalable REST endpoints (FastAPI) and managing access to large datasets using Pandas, Parquet/Arrow and DuckDB.
You’ll own the identity layer (OAuth2, JWT, API keys) in a multi-tenant SaaS setup on AWS and contribute to data-facing services and occasional frontend work.