Developed and maintained scalable web applications using the MERN stack, ensuring high performance and responsiveness.Collaborated with designers to implement frontend features and integrate with backend services.Designed and implemented RESTful APIs for seamless communication between the client-side and server-side components.Optimized application performance through code refactoring, caching strategies, and database query optimization.Implemented authentication and authorization mechanisms using JWT (JSON Web Token) for secure user access.Conducted code reviews and provided constructive feedback to maintain code quality and consistency.Worked closely with QA engineers to identify and address bugs, ensuring smooth user experiences.Deployed applications to production environments on platforms such as Cyclic,and Render ensuring stability and scalability.Actively participated in sprint planning, daily stand-ups, and retrospective meetings to drive project success and continuous improvement.