• Develop and program DDC controllers, including logic, sequences, alarms, schedules, and trends. • Build and configure controller databases, graphics, navigation, and user interfaces. • Implement integration using BACnet, Modbus, and other open protocols. • Configure and test network settings, IP addressing, routing, and device bindings. • Create and update programming libraries, templates, and standards. • Support field technicians during startup, commissioning, point-to-point testing, and functional testing. • Troubleshoot communication issues, device failures, programming errors, and performance gaps. • Perform on-site adjustments to optimize HVAC and mechanical system performance. • Validate I/O lists, mechanical schedules, control drawings, and sequences of operation. • Maintain organized project files including backups, version control, release notes, and as-built documentation.