Design, develop, and maintain robust, scalable, and high-performance backend services using Java (Quarkus) and C# (.NET) Develop and manage APIs (RESTful) for internal and external consumption, and coordinate and oversee the definition of API contracts for services Participate in the full software development lifecycle, from requirements gathering to deployment and support Contribute to architecture review and discussions for new services and feature development Assist in the debugging and integration of frontend clients, using a variety of technologies such as Vue.js and React Monitor, troubleshoot, and optimize backend services for performance and reliability Containerize services for Kubernetes, and work with DevOps team to deploy, debug, and optimize backend services Implement secure and efficient database interactions and data storage solutions Participate in code reviews, ensuring adherence to coding standards and best practices Write comprehensive unit and integration tests to ensure code quality and reliability