Key responsibilities:
1. Develop backend solutions using Node.js, REST API, MongoDB, MySQL, Python, PHP, Java, HTML, Django, Express.js, Flutter, and Dart
2. Design, develop, and troubleshoot complex software solutions
3. Troubleshoot and debug applications to ensure optimal performance
4. Keep up with industry trends and technologies
5. Collaborate with other team members to ensure deadlines are met
6. Ensure the quality of the code meets the established standards