Senior Lead Developer - Reporting Platform

**About the Role**
We’re looking for a **Senior Lead Developer** to take ownership of our in-house **report execution engine** — a fast, performance-critical system that runs subsecond queries across different data sources, sometimes combining them on the fly.
This is a **hands-on leadership** role for a developer who enjoys going deep into a single, technically challenging system. We're not looking for a high-level architect - we need someone who still writes code, makes smart technical decisions, and leads through hands-on work.
You’ll take ownership of a **performance-critical platform**, guiding its architecture, improving reliability, and shaping how we build - all built on a **modern, cloud-native stack**.
**What You’ll Do**
- Own the technical direction, architecture, and performance of the report execution engine
- Design and build systems using **Python**, **Java (Spring Boot)**, **Redis**, and **AWS Lambda**, along with other cloud-native technologies like *...