Andy Teng

I’m a Senior REST API Developer with over 7 years of experience designing, building, and deploying high-performance, scalable web applications and public-facing APIs. I specialize in the full LAMP stack, with deep REST/SOAP/JSON integration experience that turns complex partner needs into production-ready solutions.

In my most recent role, I architected and deployed a high-performance RESTful API in PHP/Laravel handling over 500K daily requests for healthcare data integrations. I migrated legacy SOAP-based integrations to modern JSON/REST endpoints, reducing latency by 40% while improving error handling, and I led the design of a scalable caching layer using Memcached and Varnish to cut database query load by 60%.

I’m equally focused on reliability and quality. I build comprehensive unit and end-to-end test suites with PHPUnit and Cypress.io (including achieving 95% code coverage for critical modules), and I strengthen operational outcomes through proactive monitoring and alerting—reducing critical incident response time by 30%.

Across roles at Cognizant and Secure Haven LLC, I’ve owned full lifecycle delivery—from inception and testing through deployment and post-implementation support—while optimizing MySQL performance, integrating payment and third-party services via JSON/REST, and developing reusable ReactJS components. I enjoy collaborating with US-based management and international teams in Pacific timezone environments, translating requirements into clear technical specifications and strong documentation that helps teams move fast.