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Heavy Duty Diesel Mechanic

Thompson Pipe Group
Fontana, CA Full Time
POSTED ON 3/14/2026
AVAILABLE BEFORE 5/11/2026

Heavy Duty Diesel Mechanic


Thompson Pipe Group is currently looking for an Industrial Diesel Mechanic:


Who We Are

Thompson Pipe Group is a privately held family business of engineers, contractors, and manufacturers based in Rialto, California. From humble beginnings, we built a family of products to meet the needs of all kinds of infrastructure. Each generation of products is better than the previous.

Thompson Pipe Group is now the largest and most diverse drainage, sanitary, pressure, and trenchless pipe provider, with manufacturing locations across the country and serving not just the US but all of North America. Please visit our website at www.thompsonpipegroup.com


JOB SUMMARY 

Under general supervision, performs very specific, skilled work. Maintains the plant’s mechanical, diesel, electrical, and electronic equipment. Welds to repair and fabricate components essential to production processes. Maintains and repairs structure, piping, fixtures, and equipment. Performs predictive and preventive maintenance. Performs other duties of a similar nature as may be required. 


ESSENTIAL DUTIES AND RESPONSIBILITIES 

  • Participate in safety programs 
  • working to repair and maintain air compressors, dryers, trucks, forklifts, and pallet jacks. Assists with the installation of new equipment. 
  • Maintain all job site equipment in a good, clean, orderly condition and report all deficiencies to the supervisor 
  • Maintains and cleans equipment, performs required inspections, completes paperwork, and assumes accountability 
  • Dismantle equipment to gain access to and remove defective parts using hoists, 
  • Follow OSHA and HAZMAT rules and regulations 
  • Takes proactive steps to make improvements to plant equipment and processes. 
  • Follows standard safety procedures, corrects safety and environmental hazards, and reports them to supervision as necessary. 
  • Recommends improvements in maintenance methods, working to reduce the cost of replacement/repair whenever possible 
  • Lubricate & clean parts 
  • Test and troubleshoot malfunctioning machinery, determine repairs, and discuss with the Head Mechanic for approval and repair as needed 
  • Ability to operate a welder, cutting torch, electrical/power, and manual hand tools for repairs. 
  • Be able to fix minor electrical problems 
  • This position will require overtime during planned maintenance outages and during plant outages. 
  • Reads, understands, and applies information such as lockout/tagout procedures, safety rules, job hazard analyses, pre-job briefings, operating and maintenance instructions, and procedures manuals. 

 

Qualifications 

  • Understand basic electrical, mechanical, and hydraulic schematics 
  • Properly use tools like electrical meters, hydraulic gauges, and lifting equipment 
  • Capable of lifting 50 pounds 
  • Valid driver's license and clean driving record 
  • Welding/fabrication experience 
  • Must know how to safely work around and with heavy equipment/objects 
  • Able to measure accurately with calipers, feeler gauges, and tape measures 
  • Be able to work 40 hours per week


 

Experience: 

  • Relevant: 3 years of industrial maintenance experience (Preferred) 
  • Manufacturing environment: 3 years (Preferred) 
  • Forklift Driving: 3 years (Preferred)  
  • Repairing Forklifts weighing 5,000lbs-80,000lbs 
  • Repaired Heavy Diesel Equipment
  • Welding: 3 years (Preferred)  
  • Ability to perform arc welding and cutting torch experience 
  • Service Tech: 3 years (Preferred) 
  • Ability to read simple electrical/mechanical drawings 
  • Communicates effectively 

 

PHYSICAL REQUIREMENTS AND WORKING CONDITIONS 

  • Must be able to work in extreme temperatures and will be exposed to heat, cold, wind, rain, dust, confined spaces, elevated areas, and dirt 


  • Must be able to lift a minimum of 35 lbs. and up to 100 lbs. occasionally* 
  • Must be able to sit for extended periods 
  • Must be able to work on feet for extended periods* 
  • Must be capable of using protective equipment such as hard hats, safety glasses/goggles, safety shoes, hearing protection, air masks, respirators, etc. in the performance of job duties* * 
  • All employees are required to comply with the Substance Abuse policy, which includes but is not limited to a post-offer drug screen and physical examination* 
  • Takes the initiative to get things done. 


Pay: $35/hour - DOE


What We Offer

  • Thompson offers a variety of benefit plans and a company-matched 401K retirement plan
  • Life and Supplement Life
  • Employee Discounts
  • Paid Holidays
  • Company Events
  • Training and Development
  • Career Advancement Opportunities


To learn more about this opportunity, visit www.thompsonpipegroup.com

Thompson Pipe Group is an Equal Opportunity Employer, and we pride ourselves on recruiting, employing, training, compensating, and promoting regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law.

Salary : $35

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