— Develop and maintain scalable backend services using Node.js and NestJS
— Design and implement RESTful APIs and GraphQL services
— Work with PostgreSQL, MongoDB, or other relational/non-relational databases
— Optimize application performance and ensure high scalability
— Implement authentication and authorization mechanisms (JWT, OAuth, Firebase, etc.)
— Write unit and integration tests to ensure code reliability
— Collaborate with frontend developers, DevOps, and product teams
— Debug and troubleshoot issues in production and staging environments
— Follow best practices in software development, security, and DevOps