• Design and develop scalable backend systems and RESTful APIs.• Build and maintain server-side application logic.• Integrate with databases, third-party services, and external systems.• Optimize system performance, scalability, and security.• Design and maintain database schemas and ensure data integrity.• Troubleshoot and resolve backend-related issues in development and production environments.• Participate in system architecture design and technical documentation.• Collaborate with frontend developers, system analysts, and cross-functional teams.• Mentor junior developers and conduct code reviews to maintain coding standards.