A Node . js Developer is responsible for writing server-side web application logic . They develop back-end components, connect the application with the other web services, and support the front-end developers by integrating their work with the Node . js application . The key responsibilities of a Node . js Developer are : 1 . Writing server-side web application logic using Node . js2 . Developing back-end components to improve responsiveness and overall performance3 . Integrating the application with the front-end and other web services4 . Ensuring high performance and responsiveness of the applications5 . Collaborating with the front-end developers and other team members to deliver end-to-end web solutions6 . Troubleshooting and debugging applications7 . Keeping up-to-date with the latest industry trends and technologies8 . Participating in code reviews and contributing to the development of best practicesThe ideal candidate should have : 1 . Strong experience with Node . js, express, and related technologies2 . Knowledge of front-end technologies such as HTML, CSS, and JavaScript3 . Experience with databases such as MongoDB, MySQL, and PostgreSQL4 . Strong problem-solving skills and the ability to work in a fast-paced environment5 . Excellent communication and teamwork skills