An AS- (HUB and QRY) developer designs, codes, tests, and maintains applications on the IBM AS/ platform. They use IBM Query (QRY) to extract and analyze data, generate reports, and support decision-making processes. They also manage the HUB, a central point for data exchange and communication between different software applications. Their responsibilities include troubleshooting system issues, improving system performance, and ensuring data security. They collaborate with other IT professionals to integrate AS/ applications with other systems. Their role is critical in managing and optimizing the use of the AS- system within an organization.