Planned, wrote, coordinated, and executed API-level performance tests to assure non-functional requirements. Enabled business to monitor performance and identify readiness for production.

Led API-level performance tests for a serverless bank app, designed JMeter scripts, and coordinated performance testing strategies for key features including OAuth Authorization Code Flow.

Reduced execution time of critical processes by 67%. Improved security by consolidating authentication. Maintained reliability and efficiency in financial operations.

Designed and maintained RESTful APIs with Spring, migrated legacy process to Spring Batch, implemented OAuth 2.1 security, and developed custom Spring Authorization Server.

Created REST APIs, consumed SOAP services, enhanced invoice reporting, and improved usability and efficiency across internal processes.

Developed and enhanced web apps for HR, accounting, and logistics using PHP, JavaScript, MySQL; maintained Android and Flutter mobile apps; improved GUIs and reporting.