A Defect Tracking Developer is primarily responsible for managing and maintaining bug tracking systems used in software development processes. These professionals identify, record, and monitor defects or bugs in software applications. They track the life cycle of defects from identification to closure, ensuring that they are correctly diagnosed and resolved. They also collaborate with developers and testers, providing them with detailed reports on defects and their status. Additionally, they may contribute to process improvements to prevent recurring defects. Their role is crucial in improving software quality and functionality, thereby enhancing user experience and satisfaction.