SENIOR DIESEL and REEFER TECHNICIAN [502]

Tcitransportation; Commerce (CA); On-site; USD 53,000 - 59,000; Full time

Benefits offered by this job

Weekly pay

Quarterly safety incentives

Medical, dental, and vision coverage

Critical illness insurance

Employer-paid life and AD&D insurance

401(k) with company match

Holiday pay

Uniforms provided

Employee discount programs

Job summary

TCI Transportation in Commerce, CA is seeking a Senior Diesel & Reefer Technician to diagnose, repair, and maintain heavy‑duty diesel engines, refrigeration units, and related systems. This role requires 6+ years of hands-on experience, EPA 608/609 certification, and a commitment to safety and quality workmanship.

You’ll work Monday–Friday with a 3:30 PM–12:00 AM shift, competitive pay from $38.53 to $43 per hour, weekly pay, and benefits including medical, dental, vision, life, 401(k) with

Qualifications

• 6+ years of hands-on heavy-duty diesel engine repair experience.
• Experience repairing and troubleshooting refrigerated trailers / transport refrigeration units.
• EPA 608/609 certification required.
• Strong electrical, mechanical, and diagnostic troubleshooting abilities.
• Experience completing major component repairs with minimal supervision.
• Valid driver’s license.
• Strong attention to detail, safety, and quality workmanship.
• Self-motivated with the ability to manage repair priorities and work efficiently.

Responsibilities

• Diagnose and repair heavy‑duty diesel engines and major components.
• Troubleshoot, service, and repair reefer trailers and transport refrigeration systems.
• Diagnose electrical, mechanical, and refrigeration system failures.
• Repair and maintain heating, air conditioning, and refrigeration systems.
• Diagnose and repair hydraulic and air brake systems.
• Service clutches, PTO systems, instruments, gauges, and related components.
• Perform preventative maintenance and identify potential equipment failures.
• Complete advanced repairs independently while maintaining high standards of quality and efficiency.
• Work collaboratively with shop leadership and fellow technicians to keep equipment operating safely and reliably.

Skills

Heavy-Duty Diesel Engine Repair

Refrigerated trailer repair

Electrical troubleshooting

Mechanical troubleshooting

Diagnostic skills

EPA 608/609 certification

Valid driver’s license

Safety and quality workmanship

Self-motivated

Job description

SENIOR DIESEL and REEFER TECHNICIAN [502]

SENIOR DIESEL & REEFER TECHNICIAN – UP TO $43/HR!

TWO SPECIALTIES. ONE GREAT CAREER. KEEP TCI MOVING!

TCI Maintenance is hiring an experienced Heavy-Duty Diesel & Transport Refrigeration Technician!

Are you a skilled Diesel Mechanic who knows how to diagnose complex engine problems AND troubleshoot refrigerated trailers?

If you have 6+ years of diesel repair experience, hands-on reefer trailer repair experience, and EPA 608/609 certification, WE WANT TO TALK TO YOU!

Your experience deserves more than just another job. Join a company that values your technical knowledge, takes pride in quality repairs, and offers the opportunity to build a long‑term career.

WHAT WE OFFER

Pay: $38.53–$43.00 per hour, depending on skills and experience.

Schedule: Monday–Friday | 3:30 PM–12:00 AM

Weekly pay with direct deposit available

Quarterly safety incentives up to $300 when requirements are met

Medical, dental, and vision coverage

Critical illness insurance

Employer-paid life and AD&D insurance

401(k) with company match

Holiday pay

Uniforms provided

Employee discount programs

PUT YOUR EXPERIENCE TO WORK!

As a Senior Diesel & Reefer Technician, you’ll use your advanced mechanical and diagnostic skills to maintain, troubleshoot, and repair commercial trucks, trailers, and refrigerated transportation equipment.

Your responsibilities will include:

Diagnose and repair heavy‑duty diesel engines and major components.

Troubleshoot, service, and repair reefer trailers and transport refrigeration systems.

Diagnose electrical, mechanical, and refrigeration system failures.

Repair and maintain heating, air conditioning, and refrigeration systems.

Diagnose and repair hydraulic and air brake systems.

Service clutches, PTO systems, instruments, gauges, and related components.

Perform preventative maintenance and identify potential equipment failures.

Complete advanced repairs independently while maintaining high standards of quality and efficiency.

Work collaboratively with shop leadership and fellow technicians to keep equipment operating safely and reliably.

WHAT WE’RE LOOKING FOR

Required Qualifications

6+ years of hands‑on heavy‑duty diesel engine repair experience.

Experience repairing and troubleshooting refrigerated trailers / transport refrigeration units.

EPA 608/609 certification required.

Strong electrical, mechanical, and diagnostic troubleshooting abilities.

Experience completing major component repairs with minimal supervision.

Valid driver’s license.

Strong attention to detail, safety, and quality workmanship.

Self‑motivated with the ability to manage repair priorities and work efficiently.

Experience That Will Make You Stand Out

Thermo King or Carrier Transicold experience.

Advanced diesel engine diagnostics and electrical troubleshooting.

Experience with DEF, DPF, SCR, and diesel aftertreatment systems.

ASE certifications or manufacturer‑specific technical training.

Experience mentoring or assisting less‑experienced technicians.

WHY CHOOSE TCI?

EXPERT SKILLS DESERVE A CAREER TO MATCH!

TCI is a family‑owned transportation company serving customers since 1978. We believe great technicians are the foundation of a dependable fleet.

We value technicians who take ownership of their work, solve challenging problems, support their teammates, and never compromise on safety or quality.

READY FOR YOUR NEXT CHALLENGE?

We are a family‑owned company doing business since 1978.

We are Dedicated and committed to safety, each other, and our customers.

Our team is Positive and passionate and comes to work each day with a “Can Do” attitude. We strive to be creative problem solvers who bring Innovative thinking to all our work.

Being Ethical, transparent, and Accountable has helped shape our team and how we do business.

Commerce, CA Join us as a Diesel Mechanic and help keep our fleet running strong!

Drivers

• Class A(70)
• Class B(1)
• Class C(17)
• Yard Driver(15)
• Dock Worker(3)

Maintenance

• Diesel Technician(15)
• Mechanic(2)
• Technician(15)
• Service Manager(2)
• Shop Supervisor(1)

Office

• Other(36)

TCI Transportation offers dedicated transportation, yard spotting, 3PL and brokerage service, expedited LTL freight movement, and truckload transportation throughout the lower 48 states.