Diesel Service Technician/Mechanic (Advance)

Job Title

High school diploma or GED required. Completion of advanced vocational, technical, or trade school training in automotive, diesel, or heavy equipment technology preferred.

Minimum of 2-5 years of progressive hands-on experience in vehicle diagnostics, maintenance, and complex repairs in a dealership, commercial fleet, or heavy-duty service environment preferred. Demonstrated experience mentoring or training junior technicians is preferred.

Valid driver's license required. Automotive Service Excellence (ASE) Master Technician certification or equivalent preferred. OEM-specific certifications (e.g., Diesel Engines) preferred. Commercial Driver's License (CDL) or ability to obtain one is preferred.

Advanced diagnostic skills with proficiency in using electronic diagnostic tools and manufacturer software. Strong ability to interpret complex wiring diagrams, technical bulletins, and repair manuals.

Ability to work independently and provide technical leadership to others. Must meet the physical demands of the job, including lifting heavy parts and working in confined spaces. Flexibility to work overtime, weekends, or on-call as required.

Essential Functions:

Oversee Daily Shop Operations and Workflow

Review incoming repair orders to assess workload, priority, and technician skill alignment. Assign jobs to technicians based on capabilities, availability, and urgency. Monitor repair progress throughout the day and make adjustments to maintain productivity and meet promise times. Coordinate workflow between service advisors, parts department, and technicians to ensure efficient shop operations. Serve as the primary point of contact for technical escalations and complex repair situations.

Provide Advanced Diagnostics and Technical Expertise

Perform high-level diagnostics on the most difficult, unusual, or escalated repairs. Verify diagnostic conclusions of junior or mid-level technicians when additional confirmation is needed. Guide technicians through advanced troubleshooting procedures and ensure accurate root-cause analysis. Maintain mastery of manufacturer systems, service procedures, and technical updates.

Ensure Quality Control and Repair Accuracy

Conduct final inspections on repairs requiring senior-level oversight. Verify that completed work meets manufacturer, safety, and company standards. Review repair documentation and confirm completeness, accuracy, and compliance. Test drive vehicles post-repair to ensure safe and proper operation when required. Identify recurring repair issues and collaborate with service management to address underlying causes.

Support and Develop Technicians

Mentor, train, and support apprentice, junior, and intermediate technicians. Demonstrate proper diagnostic methods, repair techniques, and use of specialty tools. Provide constructive feedback on performance, quality, and efficiency. Assist in onboarding new technicians and guiding them through shop expectations and processes. Promote a learning environment by sharing technical knowledge and best practices.

Coordinate with Service Advisors and Parts Department

Communicate clearly with service advisors regarding repair status, additional findings, and required approvals. Work directly with parts personnel to identify needed components, resolve parts delays, and support accurate parts sourcing. Provide accurate labor times and technical explanations to support estimate creation and customer communication. Help service advisors understand complex repair needs so they can relay information accurately to customers.

Maintain Safety, Cleanliness, and Regulatory Compliance

Model and enforce safe work practices and adherence to OSHA, DOT, and shop safety standards. Conduct routine safety inspections of equipment, lifts, and work areas. Ensure technicians follow proper procedures for hazardous materials, waste disposal, and environmental compliance. Promote a clean, organized, and hazard-free shop environment.

Perform Advanced and Complex Repairs

Carry out the most technically demanding vehicle repairs, overhauls, and diagnostic procedures. Adapt repair strategies when unexpected issues or deviations arise. Maintain precision and attention to detail while working on critical vehicle systems (engine, aftertreatment, electrical, hydraulic, etc.). Ensure all tools, diagnostic equipment, and specialty items are maintained and functioning properly.

Support Documentation and Communication Standards

Review and validate technician repair documentation for completeness and accuracy. Document own diagnostic tests, repair steps, parts used, and findings in detail. Communicate clearly with service management regarding shop performance, training needs, and process improvements. Assist in tracking open repair orders and ensuring timely job closeout.

Maintain High Professional Standards and Team Leadership

Model professionalism, integrity, and accountability for the entire shop. Support a positive workplace culture built on teamwork, respect, and continuous improvement. Participate in shop meetings, technical discussions, and ongoing training opportunities. Maintain confidentiality and represent the company's values in all customer and internal interactions.

Meet Physical and Technical Requirements of the Role

Perform physically demanding tasks including lifting heavy components, working in confined spaces, and standing for extended periods. Maintain physical ability to safely operate equipment, tools, and vehicles. Keep pace with rapidly changing technology, diagnostic tools, and manufacturer systems.