Diesel Mechanic

Hedy Holmes Staffing Services; Stockton (CA); On-site; USD 55,000 - 85,000; Full time

Job summary

Hedy Holmes Staffing Services is seeking a skilled Diesel Mechanic to join our Stockton, CA team. You will maintain and repair petroleum fleet vehicles and heavy haul equipment, performing diagnostics and preventive maintenance in both shop and service-truck settings.

Candidates should have hands-on diesel experience, knowledge of electrical systems, air brakes, and be comfortable working nights or weekends as needed; background check required; strong teamwork encouraged.

Qualifications

• Hands-on experience with diesel engines and heavy vehicles.
• Knowledge of electrical systems in automotive context.
• Experience with air brake systems and diagnostics.

Responsibilities

• Maintain and repair petroleum fleet vehicles and heavy haul equipment.
• Perform preventive maintenance and troubleshooting on diesel engines.
• Diagnose and repair automotive electrical systems and air brake systems.
• Work from a service truck in the field when required.
• Inspect trucks and trailers for safety and compliance.
• Document repairs and communicate needs to management.

Skills

Diesel engines

Automotive electrical systems

Air brake systems

Service truck experience

Teamwork

Flexible hours

Background check

Tools

Diagnostic tools

Multi-meters

Job description

Schedule: Day, Swing, and Graveyard shifts available

Job Summary:

We are seeking a skilled and reliable Diesel Mechanic to join our team in Stockton, CA. This position is responsible for maintaining and repairing petroleum fleet vehicles and heavy haul equipment to ensure safe and efficient operations. The ideal candidate will have strong mechanical knowledge of diesel engines, experience working with trailers and trucks, and the ability to work both in the shop and from a service truck when needed.

Key Responsibilities

• Perform maintenance, diagnostics, and repairs on petroleum fleet vehicles and heavy haul equipment
• Conduct preventative maintenance and troubleshooting on diesel engines
• Perform occasional gas engine repairs on company pickup trucks
• Diagnose and repair automotive electrical systems and air brake systems
• Work from a service truck in the field when required
• Inspect trucks and trailers to ensure safe operation and compliance
• Use diagnostic tools, including multi-meters and electronic devices, to identify mechanical and electrical issues
• Document repairs and communicate maintenance needs with management
• Follow all safety procedures and company policies while performing repairs

Minimum Qualifications:

• Mechanical knowledge and hands-on experience with diesel engines
• Basic knowledge of automotive electrical systems
• Experience working with air brake systems
• Previous service truck experience
• Ability to pass a background check
• Strong teamwork and communication skills
• Ability to work flexible hours, including nights, weekends, and on-call shifts

Preferred Qualifications:

• Experience with fuel tanker overfill systems
• Welding experience

Additional Skills & Abilities:

• Ability to repair and maintain both trucks and trailers
• Comfortable using computers, tablets, or smart devices for diagnostics and reporting
• Ability to operate diagnostic equipment such as a multi-meter
• Strong problem-solving skills and attention to detail