Lestath Rivera

US Green Card Holder in Calexico, CA

Fluent in English and Spanish

Education & Awards

Sept 2026 to Current

Fixed a data-loss bug in a Go-based service that caused Google Ads data to disappear, tracing the issue across services with Codex and Claude agentic workflows; shipped the fix through a GitHub Actions CI/CD pipeline with automated testing and deployment.

Aug 2025 to Aug 2026

Built a dashboard in HTML, CSS, Javascript, and React to provide clear, real-time, actionable metrics and weekly trends for users of our air quality monitoring devices.
Implemented Python and SQL scripts and RESTful API endpoints to migrate a production PostgreSQL database containing 125 million rows across 15 tables to a new Java Spring Boot architecture and data model serving 5000 users, validation showing no data loss and accurate representation of business logic in the new data model.
Collaborated with the project lead in weekly Agile meetings, using Git and Docker to incorporate feedback, coordinate development, and deliver iterative improvements.

March 2025 to Present

Founded and led a competitive programming club, mentoring 15 members in C++, data structures and algorithms, problem-solving, and mathematics, helping club members qualify for the ICPC national finals

Developed a platform using Next.js, Typescript and AWS services (Lambda, S3) that enables students to generate and companies to securely download professional CVs

Built an interactive visualizer for computational geometry algorithms (convex hull, etc.) in HTML, CSS, and React with realtime playback, implementing the algorithms in Javascript