Senior Operating Engineer

As a Senior Operating Engineer, you operate and maintain the mechanical systems that keep buildings functional — HVAC systems, boilers, chillers, generators, pumps, and building automation systems. This is a licensed position in many jurisdictions, requiring a stationary engineer or operating engineer license. The senior title means you're the lead operator on shift, handling the most complex systems and training junior engineers.

Your day follows the rhythm of the building. You conduct rounds checking equipment operation, monitor building automation system alarms, perform preventive maintenance on mechanical equipment, respond to comfort complaints, and troubleshoot equipment malfunctions. You need hands-on mechanical and electrical skills, understanding of thermodynamics and fluid systems, and the judgment to know when a noise or vibration means something serious.

The responsibility is continuous operation. Buildings don't take breaks. Hospitals, data centers, and high-rise buildings depend on your systems 24/7. When a boiler fails in January or a chiller dies in August, you're the person who needs to restore service quickly while managing safety. Equipment failure in your domain isn't an inconvenience — it can be an emergency.