Hi Amrita, Backend Developers create, code, and improve the server, server-side applications, and databases that, when combined with front-end codes, help create a functional, seamless experience for the end-user. They study industry trends, create or improve back-end processes and codes, and work with others to design a better program. Some of the responsibilities of a backend developer are:
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Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement. 
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Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience. 
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Developing ideas for new programs, products, or features by monitoring industry developments and trends. 
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Recording data and reporting it to proper parties, such as clients or leadership. 
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Participating in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members. 
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Taking lead on projects, as needed.