•Built a Scala service to validate 400,000 SQL queries against bi-weekly PrestoDB upgrades to detect backwards compatibility breaks and performance regressions.
•Developed a full-stack application to visualize deployments, resources, and permissions; created metrics and alarms to minimize security risks.
•Shipped a macOS application to simplify authentication from 6 to 2 steps for data services.
•Created a CLI to manage deployments, enabling self-served services such as Presto, Mode, YARN, Azkaban for teams.