Design, develop, and maintain scalable full-stack web applications for HR, recruitment, and manpower management. Collaborate with designers, architects, and stakeholders to define requirements and data contracts. Ensure performance, security, code quality, and documentation. Troubleshoot full-stack issues and support integrations with ATS, HRMS, and payroll platforms.

Design, build, and maintain RESTful/GraphQL APIs and integrations for HR, recruitment, and manpower systems. Collaborate with frontend, architects, and stakeholders to define contracts; ensure security, performance, versioning, and documentation; troubleshoot API issues and support third-party integrations (ATS, HRMS, payroll).