Electric Car Maintenance Mechanic are responsible for inspection, maintenance and repair of electric and/or gas-powered vehicles.

Natural Gas Vehicle Maintenance Mechanic perform preventative maintenance and repairs on natural gas compressor systems and compression equipment. 

Fuel Cell Vehicle Maintenance Mechanic install and maintain fuel cell systems and equipment. They design and develop fuel cell systems or processes.

Pit Crew is responsible for changing tires, refueling, adjusting aerodynamics, checking and repairing parts, and getting the driver back on course in a matter of seconds.

Aircraft Engine Mechanic inspect mechanical, hydraulic and structural systems and diagnose malfunctions.

Aircraft Engine Fitter repairs or replaces worn, defective, or damaged aircraft engine parts. They also test engine components and systems to ensure they are functioning correctly and use testing equipment to diagnose and identify aircraft engine problems.

Aircraft Maintenance Engineer (Airframes) Mechanic dismantling, inspecting, testing, repairing, and reassembling aircraft engines.

Helicopter Mechanic have a high technical and mechanical aptitude and are responsible for the repair and maintenance of helicopters. 

Aircraft Maintenance Engineer (Engines) Mechanic responsibilities include conducting inspections, troubleshooting problems, making repairs, and making upgrades to aircraft.

Aircraft Mechanic inspect mechanical, hydraulic and structural systems and diagnose malfunctions.

Airframe and Power Plant Mechanic maintains the airframe and engines of aircrafts to meet FAA standards.

Airframe Mechanic ensures proper working condition of mechanical systems before flight. 

Jet Engine Mechanic maintain, repair, and rebuild aircraft structures, functional components, and parts, such as wings and fuselage, rigging, hydraulic units, oxygen systems, fuel systems, electrical systems, gaskets, or seals.

Pneudraulic Systems Mechanic (Aircraft) disassemble, repair, rebuild, modify, test, troubleshoot, and install more complex hydraulic and pneumatic systems with more extensive repairing, testing, and troubleshooting sequences than the components and systems characteristic.

Powerplant Mechanic (Aircraft) tune, repair, replace, or upgrade aircraft engines, otherwise known as powerplants. 

Rocket Engine Component Mechanic repair and maintain the operating condition of rocket engines.

Machinery Mechanic installing and assembling new machines and equipment. Maintaining a preventative maintenance schedule for inspecting, servicing, and testing machinery.

Mining Machinery Mechanic install, remove, maintain and repair mining equipment.

Mechanic, Machine-Tool operate, service, repair and adjust general machine shop equipment.

Mechanic, Industrial Machinery keep machines in working order by detecting and correcting errors before the machine or the products it produces are damaged.