Provide customer support via email: respond promptly, investigate and resolve account issues, document interactions, escalate complex cases to internal teams, and maintain high customer satisfaction and response-time goals.

Design, build, and maintain scalable full-stack web applications. Implement responsive frontends with modern JavaScript frameworks and robust backend services and RESTful APIs. Optimize SQL/NoSQL databases, write tests, perform code reviews, mentor junior engineers, improve performance, reliability, and security, and contribute to architectural and technical strategy.