A MAXQDA developer works on the MAXQDA software, a qualitative data analysis tool. They design, code, test, and debug the software to ensure its functionality and performance. Their work involves creating and implementing algorithms for analyzing textual, audio, and video data. They also develop features for coding and memoing, content searching, and visualization. Additionally, they work on enhancing the software's user interface for better user experience. They collaborate with data analysts and researchers to understand their needs and incorporate them into the software. Furthermore, they maintain and update the software to keep it current with technological advancements.