The Service Technician- Class A performs advanced diagnostics, repair, and overhaul of heavy-duty trucks and related equipment with minimal supervision. This position services as a technical leader within the Service Department, assisting in the training and development of Class B, Class C, and Intern technicians. The Class A Technician is responsible for accurately diagnosing complex issues, completing high-quality repairs, and supporting overall shop productivity and customer uptime. The "Major Duties and Responsibilities" listed below highlights the key responsibilities and qualifications for the role. The duties and responsibilities outlined are not exhaustive and may adapt over time to align with evolving business needs. Major Duties and Responsibilities Diagnostics and Repair Perform advanced diagnostics on engines, electrical systems, fuel systems, emissions systems, and drivetrains Identify root causes of complex mechanical and electrical issues and complete repairs Disassemble, inspect, and rebuild components using appropriate tools and measuring devices Perform inspections of critical systems including brakes, steering, fuel, and suspension Test repaired systems and components to verify proper operation Technical Leadership and Support Assist in training and mentoring Class B, Class C, and Intern technicians Provide guidance and support on complex diagnostic and repair issues Inspect work in process and assist with quality control when needed Collaborate with team members to improve shop efficiency and effectiveness Support a positive and productive team environment Work Management and Documentation Accurately document all diagnostics, repairs, and labor performed ("story writing"). Follow Company procedures for work orders, time tracking, and parts usage Communicate repair status and additional needs to service advisors or management Maintain productivity standards while ensuring quality workmanship Keep work area clean, organized, and properly maintained Safety and Compliance Follow all safety policies, procedures, and OSHA requirements Properly use and maintain tools, equipment, and personal protective equipment Maintain awareness of environmental and safety hazards in the shop Participate in required training and certification programs Ensure all work is performed in compliance with Company and regulatory standards To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The knowledge, skills, and abilities listed below are representative of those required. This position involves hands-on work in a shop environment, including frequent use of tools, equipment, and machinery. Employees are required to stand, walk, bend, lift, and work in various conditions, including exposure to noise, fumes, and moving mechanical parts. Lifting up to 50-100 pounds may be required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. Education High school diploma or GED required Technical or diesel technology degree preferred 2+ years of experience in heavy-duty truck repair required Intermediate computer skills required, including diagnostic software and service systems Skills Required Advanced diagnostic and troubleshooting skills across mechanical and electrical systems Strong understanding of heavy-duty truck systems including engine, fuel, electrical, brake, and emissions systems Ability to work independently with minimal supervision Strong problem-solving and critical thinking skills Ability to mentor and assist less experienced technicians Effective written and verbal communication skills, including accurate repair documentation ("story writing") Ability to use diagnostic tools, gauges, and electronic testing equipment Strong attention to detail and commitment to quality workmanship Ability to prioritize work and manage time efficiently Strong safety awareness and adherence to shop procedures Certificates, Licenses, and Registrations CDL preferred but not required. With a valid CDL, must be able to meet Company insurability requirements OEM and ASE certifications preferred Travel Occasional travel to other Company locations or trainings may be required Midwest Peterbilt Group Benefits Health, Dental, and Vision Insurance Flex Spending Accounts (FSA) 401(k) with Employer Matching Paid Holidays and PTO Tool Insurance Life Insurance Hospital and Critical Care Plans Short and Long-term disability programs IDShield and LegalShield Services Additional Job Board Information Midwest Peterbilt Group is an equal opportunity employer All applicants will be considered for employment without attention to race, color, religion, sex, national origin, age, disability, veteran status, or any other protected status under applicable laws Company Information Founded in 1954, Sioux City Truck Sales, Inc. has grown from a small Diamond-T Truck dealership into the exclusive Midwest Peterbilt Group (MPG) , a network of Peterbilt truck dealerships across Iowa and Nebraska with locations in Sioux City, Des Moines, Council Bluffs, Norfolk, Lincoln, Omaha, and O'Neill. We offer premium trucks, parts, and service as well as wreck repairs and restoration services through MPG Collision Centers, Inc. (MPG CCI) . And, we provide educational opportunities through the Midwest Diesel Tech Academy (MDTA) .