A BlueJeans developer designs, codes, and modifies the BlueJeans video conferencing and collaboration software, ensuring high-quality user experience. They work on various aspects, including the application's interface, server backend, and network communications. They also troubleshoot and fix bugs, improve system performance, and implement new features based on user feedback or market trends. They collaborate with other teams to integrate BlueJeans with various platforms and tools. Moreover, they ensure the software's security and compliance with data privacy regulations. They use programming languages like JavaScript, Python, and C++, and work with cloud technologies.