1. Collaborated with designers and other developers to implement website designs and build high-performing, scalable, and reliable web applications. 2. Tested and debugged code to ensure cross-browser compatibility and optimal performance. 3. Optimized website speed and performance through code optimization and image compression. 4. Implemented responsive design principles to ensure websites are mobile-friendly. 5. Integrated third-party APIs and libraries into websites. 6. Used version control systems such as Git to manage code changes and collaborate with team members. 7. Created and maintained reusable code components.