19. Diesel Engine Specialist

Median Annual Salary
$47,341*
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What They Do: You will repair diesel engines in buses, trucks and heavy equipment, diagnosing issues and performing routine maintenance.

Why It's Hot: The BLS projects 5% job growth through 2028.
What You'll Need: Diesel certifications and vocational training is key, though you can be a diesel mechanic with relevant real-world experience.