The broadest branch of engineering: anything that moves, spins, heats up, cools down or carries a load, from engines and HVAC to toasters and turbines.
Top pay: highest pay, longest training
Principal Mechanical Engineer: Senior expert who owns the hardest mechanical design calls on big products and mentors other engineers. Typical pay $150k.
CFD & Simulation Engineer: Uses computer simulations to predict how air, water, heat and stress move through a design before anything is built. Typical pay $120k.
Turbomachinery Engineer: Designs the spinning heart of jet engines, power-plant turbines, pumps and compressors. Typical pay $130k.
Tribologist: Scientist-engineer who studies friction, wear and lubrication to make machines last longer. Typical pay $120k.
Thermal Engineer: Keeps things from overheating, from phone chips and EV batteries to satellites. Typical pay $110k.
Mid pay: solid pay, degree or apprenticeship
Mechanical Engineer: Designs, builds and tests machines and mechanical systems, from engines to coffee makers. Typical pay $102k.
Mechanical Design Engineer: Turns product ideas into detailed 3D models and drawings that factories can actually build. Typical pay $95k.
HVAC Design Engineer: Designs the heating, cooling and air systems that keep buildings, hospitals and data centers comfortable and safe. Typical pay $95k.
Consumer Product Design Engineer: Engineers everyday products like blenders, power tools, toys and sneakers so they work, last and can be built cheaply. Typical pay $92k.
Fluid Power Engineer: Designs the hydraulic and air-powered systems that move excavator arms, aircraft landing gear and factory robots. Typical pay $92k.
Plumbing Engineer: Designs the water, drain, gas and medical-gas piping systems for big buildings. Typical pay $90k.
Elevator & Escalator Engineer: Designs and plans elevator systems for skyscrapers so people never wait too long and always ride safely. Typical pay $100k.
Mechanical Test Engineer: Plans and runs tests that try to break products on purpose to prove they're safe and tough enough. Typical pay $88k.
Energy Engineer: Finds ways for buildings and factories to use less energy and money. Typical pay $98k.
Fluid Power Technician: Builds, tests and fixes hydraulic and pneumatic systems on machines. Typical pay $60k.
HVAC Test & Balance Technician: Measures and adjusts airflow in new buildings so every room gets exactly the air the engineers designed. Typical pay $60k.
Energy Auditor: Inspects homes and buildings to find where energy is wasted and recommend fixes. Typical pay $55k.
Piping Stress Engineer: Makes sure the miles of hot, high-pressure pipe in refineries and power plants don't crack, sag or burst. Typical pay $105k.
Pressure Vessel Design Engineer: Designs tanks, boilers and reactors that safely hold gases and liquids under enormous pressure. Typical pay $102k.
Gear & Drivetrain Design Engineer: Designs the gears and gearboxes inside cars, wind turbines, robots and helicopters. Typical pay $105k.
Plant Engineer: Keeps a factory's machines, utilities and buildings running safely and efficiently. Typical pay $100k.
Career Universe is an early version. Pay, training and AI-risk figures are estimates to start your own research, not verified facts. The research was written with AI research assistants, checked by validation scripts and spot-checked by hand. Check anything important with schools, employers and official sources. How the numbers work.