An Ingres developer is responsible for developing and maintaining databases using Ingres, an open-source relational database management system. They design, code, test, debug, and document complex database programs. They are also involved in data modeling, schema design, and ensuring optimal performance, security, and data integrity. They collaborate with other developers and stakeholders to understand requirements and troubleshoot issues. Often, they migrate or upgrade existing databases, implement backup and recovery processes, and provide technical support. Continuous learning about new technologies and trends in database development is crucial for their role. They play a significant role in data management and business decision-making processes.