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Updated 2026-06-12 23:00 UTC·© 2025–2026 RoleSuite
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Diesel Technician

Cogentanalytics · St Louis, MO

Diesel Service Tech/Mechanic
 
Our client, a family-owned truck repair is an operated Union Diesel Repair Shop serving the St. Louis area for over 80 years. Currently being run by the 4th genera􀆟on of Schroeders. We are currently looking for Diesel Mechanics for our 2nd shift, 3:30 to Midnight.Monday through Friday work week, Union wages and Benefits via Machinist District 9.

Du􀆟es & Responsibilities:

  • Consulting the customer and reading work orders to evaluate the tasks required
  • Preparing work plans after fully scoping out the issues
  • Running diagnostic tests on diesel engines and interpreting the results to offer suitable solutions
  • Inspecting vehicle systems, including suspensions, steering and exhausts
  • Repairing or replacing vehicle transmissions, brakes, engines, and other associated parts
  • Conducting field visits in the case of an emergency or sudden breakdown
  • Test driving repaired vehicles to gauge their performance
  • Completing oil changes, coolant service, AC evaluation, and brake checks
  • Maintaining records of parts inventory and serviced vehicles
  • Ensure the job area is organized and clean, including mee􀆟ng necessary standards for waste disposal and environmental protection.
  • Job Requirements:

  • At least 4 years of diesel or heavy equipment maintenance and repair experience. (Preferred)
  • Advanced knowledge of a vehicle, its electrical system, and the mechanisms of a diesel engine (Hi rail and hydraulic knowledge is Preferred)
  • In-depth knowledge of diesel engine components and operational mechanisms
  • Superior knowledge of maintenance tools and repair equipment
  • Comfortable using mechanical and electrical power tools
  • Excellent problem-solving skills
  • Keen attention to detail
  • Basic knowledge of computer systems and other relevant electronics (MaxxTraxx knowledge is preferred)
  • Proficiency in the use of diesel engine diagnostic so􀅌ware
  • A valid driver’s license; Must have CDL -B (CDL-A strongly preferred)
  • Good interpersonal skills
  • Effective collaboration and communication skills
  • Must furnish own tools.
  • Physical Requirements:

  • Work inside an open floor plan shop
  • Daily exposure to dirt, oils, smells, and sounds, related to standard mechanics’ shop.
  • Must be able to lift, handle, meet ladder safety requirements.
  • Must be able to lift 50+ lbs. regularly.
  • Must be able to work at heights of 0-20 ft.
  • Must be able to bend, stand, sit, crawl, lay, climb, and li􀅌 throughout each day.
  • Required to stand, walk, and sit frequently. Required to reach with hands and arms; climb or balance; stoop, kneel or crouch to access vehicle areas.
  • Additional Informa􀆟on

  • We provide an excellent compensation package through District 9 International Association of Machinists & Aerospace, Local 777
  • Health and Welfare, Vision, Dental, Union Pension
  • Paid vacation (5 days a􀅌er first anniversary) & holidays (9 days per year)
  • 8.5-hour workdays, 30 minutes unpaid lunch.
  • Weekly Pay
  • Automotive pay context

    Based on 38 disclosed Automotive salaries on RoleSuite, the role pays a median of $83K/year, with most offers between $83K and $83K (10th–90th percentile: $73K–$93K).

    See the full Automotive salary breakdown →
    Apply →

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