Vetted Front End Developers in the Bay Area

“Software engineer with experience at PayPal and JPMC building large-scale onboarding/account setup systems using React/TypeScript with Spring Boot/Node microservices and Kafka. Also built an Ignition-based SCADA monitoring tool at Mainspring Energy that became the default for manufacturing/test engineers by aggregating real-time telemetry and historical test data.”

“Backend/data engineer with strong AWS production experience across containers (ECS) and serverless (API Gateway/Lambda/SQS), plus Glue-based ETL to Parquet for Athena/Redshift. Demonstrates hands-on reliability and security depth (Cognito OAuth2/JWT with JWKS rotation, idempotency/DLQs, monitoring) and measurable performance wins (Redis caching + query tuning), along with legacy-to-services modernization using parallel-run parity and feature-flagged cutovers.”

Thomas Toan

Screened

Senior Frontend Software Engineer specializing in regulated and high-performance web applications

San Mateo, CA11y exp

“Frontend/product engineer who has owned high-impact surfaces across video streaming, edtech analytics, and regulated healthcare platforms. Notable work includes rebuilding a clinical trial forms system with strict TypeScript standards, designing real-time livestream engagement features, and shipping a lightweight PIP player that improved Core Web Vitals by avoiding heavy SDK load on initial page render.”