Design and execute manual test plans for web, mobile, API, and third-party integrations; identify, document, and track defects; validate financial data and transaction flows; participate in Agile ceremonies; maintain QA documentation and improve QA processes.

Design, develop, and maintain scalable, high-performance backend systems for a cross-border payments platform. Build microservices, integrate third-party services, ensure reliability and security, write tests, contribute to CI/CD, document APIs, participate in Scrum, mentor junior engineers, and support production maintenance and performance improvements.