Proficiency in backend programming languages like Python, Java, Node.js, C#, Go, or PHP for building scalable server applications.

Expertise in relational databases (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis) including design, optimization, and querying.

Designing and building RESTful APIs, GraphQL endpoints, and integrating third-party services for seamless data exchange.

Working with backend frameworks like Django, Spring Boot, Express.js, or ASP.NET for building structured web applications.

Implementing secure authentication, authorization, data protection, and following security best practices to protect applications.

Deploying and managing applications on cloud platforms, containerization with Docker, and CI/CD pipeline implementation.

Writing comprehensive unit tests, integration tests, and implementing testing strategies to ensure code quality and reliability.

Optimizing application performance, implementing caching strategies, load balancing, and scaling solutions for high-traffic systems.

Proficiency with Git workflows, code review processes, and collaborative development practices for team-based projects.

Implementing application monitoring, logging systems, error tracking, and performance metrics to maintain system health and debugging.