Summary
John Leonardo is a Senior Software Engineer in the San Francisco Bay Area with 8 years building reliable, high-scale systems across distributed systems, cloud infrastructure, parallel computing, and ML deployment. He’s currently at Roblox helping grow tooling for creators, after designing event-driven anomaly detection and search model infrastructure at Amazon. Comfortable across the stack, John focuses on shipping clean, maintainable code and mentoring teammates to solve real product problems. He brings public-sector accessibility experience from California DGS and a steady track record of microservices work from IBM to large-scale search systems. Known for curiosity and a friendly, collaborative approach (and a playful GitHub bio), he blends pragmatic engineering with a continuous-learning mindset.
8 years of coding experience
6 years of employment as a software developer
California State University, Sacramento