◦ Worked on Firefox browser toolkits in JavaScript and C++. Improved reader mode functionality by rolling out a custom themes menu and adding accessibility features, leveraging Mercurial for version control and Phabricator for collaboration.

◦ Developed custom unit and integration tests using Mocha to validate new features and code changes. Utilized in-house CI/CD tools to automate the testing process.

◦ Utilized Node.js and TypeScript to develop scalable backends for multiple web projects, leveraging JWT and OAuth2 for authentication and Redis for session management/caching

◦ Enhanced performance of the client management portal by reducing database query latencies by over 200% through indexing essential items in the existing PostgreSQL database.