QA (Diesel mechanic) Diagnostic

1) Heavy Duty (Diesel mechanic) background,
a. Understanding of using diagnostic applications to fix truck.
b. Understand different sub systems of Heavy Duty (preferably) or Light Medium Duty

2) Has basic understanding of electrical systems, and can do electrical wirings on ECU using schematics
3) Is comfortable using software like MS EXCEL, MS ACCESS on Windows OS 10