Lead Automotive Diagnostic Technician / Shop Foreman

Job Description

Job Description

This is a working Shop Foreman position. We are seeking a high-level diagnostician who leads by example, mentors technicians, and enjoys solving the complex problems that other shops can't.

Lead Automotive Diagnostic Technician / Shop Foreman

Ryan's Automotive Service Center

Fairfield, California

Join One of Northern California's Most Established Independent Repair Shops

Ryan's Automotive Service Center has proudly served Fairfield and the surrounding community for over 70 years . As a fourth-generation, family-owned business , we're investing heavily in the future of automotive repair—including commercial fleet maintenance, advanced diagnostics, hybrid and EV repair, and state-of-the-art technology.

Our reputation has been built on honest service, exceptional workmanship, and solving the problems other shops can't.

We're looking for an experienced Lead Automotive Diagnostic Technician / Shop Foreman who wants more than just another job. We're searching for a hands-on leader who enjoys diagnosing complex vehicle issues, mentoring technicians, improving shop efficiency, and helping build one of Northern California's premier independent repair facilities.

If you're the technician everyone comes to when they can't figure out the problem—you may be exactly who we're looking for.

What You'll Do

• Perform advanced drivability, electrical, and network diagnostics.
• Diagnose complex gasoline, diesel, hybrid, and electric vehicle systems.
• Perform advanced waveform analysis using an automotive oscilloscope.
• Diagnose CAN, LIN, and other network communication faults using modern diagnostic equipment.
• Troubleshoot intermittent electrical concerns, sensor performance, actuator operation, and module communication issues.
• Diagnose and repair failed California Smog Check vehicles.
• Perform advanced emissions diagnostics, including catalyst efficiency, EVAP systems, OBD-II readiness monitors, and engine performance concerns.
• Ensure emissions-related repairs comply with California BAR regulations and manufacturer repair procedures.
• Develop diagnostic game plans for difficult repairs and assist other technicians in reaching accurate diagnoses.
• Lead and mentor technicians throughout the shop.
• Assist with workflow management and repair prioritization.
• Verify repair quality before vehicles leave the shop.
• Work closely with service advisors to develop repair strategies and communicate technical findings.
• Help improve technician productivity and overall shop efficiency.
• Support our growing commercial fleet maintenance program.
• Complete thorough digital vehicle inspections and documentation.

What We're Looking For

Required Qualifications

• Minimum 8 years of professional automotive repair experience
• Expert-level diagnostic and troubleshooting skills
• Advanced electrical diagnostic experience
• Proficiency using an automotive oscilloscope for advanced diagnostics
• Ability to accurately diagnose complex drivability, network communication, and electrical system faults
• Strong understanding of engine performance systems
• Current California Smog Check Inspector and Repair Technician License (required)
• Ability to diagnose and repair failed Smog Check vehicles using advanced diagnostic procedures
• Excellent communication and leadership skills
• Positive, team-oriented attitude
• Ability to mentor and train technicians
• Ability to create diagnostic game plans and efficiently guide other technicians through complex repairs
• Clean driving record

Preferred Qualifications

• ASE Master Technician
• ASE L1 Advanced Engine Performance Certification
• Hybrid and EV diagnostic experience
• Diesel diagnostic and repair experience
• Previous Shop Foreman or Team Lead experience

Our Facility

Ryan's Automotive Service Center is one of the area's largest independent repair facilities.

You'll work in a modern, well-equipped shop featuring:

• 10 Vehicle Lifts
• 7 Service Bays
• State-of-the-Art Diagnostic Equipment
• Advanced Scan Tools
• Oscilloscopes and Modern Diagnostic Equipment
• Digital Vehicle Inspection System
• Commercial Fleet Maintenance Division
• Gas • Diesel • Hybrid • Electric Vehicle Repair

Compensation & Benefits

We value great technicians and offer a compensation package that reflects it.

• Competitive Pay (Based on Experience)
• Performance Bonus Opportunities
• Paid Holidays
• Paid Vacation
• Ongoing Paid Training
• ASE Certification Assistance
• Modern Equipment and Technology
• Clean, Organized Work Environment
• Stable Fourth-Generation Family-Owned Business
• Leadership Growth Opportunities

Why Join Ryan's?

We're not looking for someone to simply replace parts.

We're looking for someone who enjoys solving the difficult problems, mentoring the next generation of technicians, and helping build an elite automotive repair facility.

If you're tired of:

• Flat-rate chaos
• Poor management
• Constant comebacks
• Being the only technician who can solve difficult problems without the support or equipment you need
• Working somewhere that doesn't value diagnostics

Ryan's Automotive Service Center offers a place where your diagnostic skills are respected, your leadership is valued, and your work directly impacts the success of our growing business.

You'll have the opportunity to help shape the future of a fourth-generation family business while working on everything from personal vehicles to commercial fleets, hybrids, EVs, and complex diagnostic challenges.

About Ryan's Automotive Service Center

For more than 70 years , Ryan's Automotive Service Center has been Fairfield's trusted source for honest automotive repair. As a fourth-generation family-owned business, we service everything from personal vehicles to commercial fleets, utilizing the latest diagnostic technology while maintaining the integrity and customer service that have defined us for decades.

Apply Today

Ryan's Automotive Service Center
1203 N Texas St.
Fairfield, CA 94533

707-four two five-two six nine five

Tell Us About Yourself

As part of your application, we'd love to hear your answers to these questions:

1. What's the most challenging diagnostic problem you've ever solved?
2. Tell us about a failed Smog Check vehicle that required advanced diagnostics to repair. What was your process?
3. What scan tools, oscilloscopes, and diagnostic equipment do you use regularly?
4. Describe your experience using an automotive oscilloscope. What types of faults have you diagnosed with it?
5. Have you mentored or led other technicians? Tell us about your leadership style.
6. Why are you interested in joining Ryan's Automotive Service Center?