Senior Technician

Quinn Company; Lake Forest (CA); On-site; USD 114,272,000 - 173,991,000; Full time

Job summary

Quinn Company in Foothill Ranch, CA seeks a Senior Heavy Equipment Technician to diagnose, troubleshoot, maintain, and repair Caterpillar and related heavy equipment in a shop setting.

You will perform advanced diagnostics, use Caterpillar software, and mentor junior technicians while ensuring safety and quality standards. Travel to customer sites and overtime may be required.

Qualifications

• Extensive hands-on experience diagnosing, troubleshooting, and repairing heavy equipment.
• Senior or Master technician-level with advanced mechanical/electronic diagnostics.
• Familiar with Caterpillar or similar heavy equipment brands.

Responsibilities

• Diagnose and repair complex mechanical, hydraulic, electrical, engine, and powertrain issues.
• Perform major component repairs, rebuilds, disassembly, and reassembly.
• Troubleshoot equipment failures using Caterpillar diagnostic software and testing equipment.
• Provide guidance and mentoring to developing technicians.
• Maintain accurate repair documentation.

Skills

Heavy equipment diagnostics

Diesel engines

Electrical systems

Troubleshooting skills

Caterpillar software

Documentation

Safety compliance

Travel readiness

Mentorship

Education

Associate degree

Tools

Caterpillar diagnostic software

Job description

Caterpillar Heavy Equipment Technician – Shop

Quinn Company - Foothill Ranch, CA

Pay Range: $39.88 – $60.71 per hour (Based on Experience and Qualifications)

Wages

Starting wage will depend on experience and education. $39.88 - $60.71

What You'll Do

As a Senior Heavy Equipment Technician, you will perform advanced diagnostics, troubleshooting, maintenance, and repairs on Caterpillar and related heavy equipment in a shop environment.

Key responsibilities include:

• Diagnose and repair complex mechanical, hydraulic, electrical, engine, and powertrain issues.
• Perform major component repairs, rebuilds, disassembly, and reassembly.
• Troubleshoot equipment failures using Caterpillar diagnostic software, electronic testing equipment, and technical service information.
• Independently perform complex repairs with limited supervision.
• Determine appropriate repair procedures and select the proper tools and equipment.
• Provide technical guidance, mentorship, and hands‑on support to developing technicians.
• Collaborate with service supervisors, parts personnel, and other departments to complete repairs efficiently.
• Maintain accurate repair documentation and follow established service procedures.
• Maintain a safe, clean, and organized work environment.
• Participate in continued technical training and stay current with Caterpillar products and technology.
• Support overtime, alternate shifts, or field assignments as business needs require.
• Perform other duties as assigned by management or supervision.

What We're Looking For

• Extensive hands‑on experience diagnosing, troubleshooting, and repairing heavy equipment.
• Senior or Master Technician‑level experience with advanced mechanical and electronic diagnostics.
• Strong understanding of diesel engines, hydraulics, electrical systems, powertrains, and equipment components.
• Proven ability to independently troubleshoot and resolve complex equipment failures.
• Experience using Caterpillar diagnostic software or comparable heavy equipment diagnostic systems.
• Caterpillar experience preferred; comparable experience with Komatsu, John Deere, Volvo, or other heavy equipment manufacturers is welcomed.
• Strong customer service, communication, and problem‑solving skills.
• Ability to work independently and manage repairs in changing field environments.
• Strong commitment to safety, quality workmanship, and professional customer interactions.
• Ability to maintain required tooling and complete accurate service documentation.
• Willingness to travel to customer locations, attend required training, and work overtime when necessary.

Qualifications

One-year certificate or Associates degree from a community college or technical school; Minimum five plus year's of CAT dealer experience and ten year's heavy equipment industry experience or equivalent education and experience.

Quinn is an Equal Opportunity Employer M/F/V/DV

Quinn Group, Inc. provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, age, national origin, physical or mental disability, all applicable veteran status or disabled veteran status. Quinn Group, Inc. has established an Affimative Action Plan to promote the employment and advancement of members of those covered groups identified by statute and regulations, including minorities, women, qualified disabled individuals and all Veterans and disabled Veterans