Design, build, and maintain backend services using .NET / C#, PostgreSQL, and Redis Develop and maintain RESTful APIs and integration layers Collaborate with Product and QA to define scope, estimate effort, and deliver roadmap items Participate in code and design reviews, ensuring alignment with best practices Monitor system and infrastructure health, respond to alerts, and resolve issues proactively Implement automated testing, CI/CD pipelines, and champion code quality Contribute to continuous improvement, bringing ideas to improve scalability and performance Support team onboarding and mentorship of new joiners Ensure security, maintainability, and future scalability of technical solutions