Sr. Shop Trailer Mechanic

Cox Automotive Inc.; Oak Creek (WI); On-site; USD 55,600 - 83,400; Full time

Benefits offered by this job

Weekly pay

Boots reimbursement

Uniforms provided

Technical training

Career advancement

Job summary

Cox Fleet is seeking a Sr. Shop Trailer Mechanic for an on-site shop role in Oak Creek, Wisconsin. You will perform certified DOT inspections, preventive maintenance, and repairs across light to heavy trailers, including brakes, air lines, liftgates, and aluminum work.

You’ll lead on-site diagnostics, coordinate with the Service Writer for estimates and parts, and ensure safety and quality standards in a fast-paced shop environment.

Qualifications

• High School Diploma/GED and 5 years’ related field experience or an equivalent combination
• Own set of hand tools necessary to perform required duties
• ASE training and certifications are preferred
• Must be 21 years or older due to interstate commerce regulations

Responsibilities

• Follow safe operating practices and procedures
• Determine parts required and coordinate with Parts Department
• Maintain a clean and safe work environment
• Diagnose and repair trailer equipment and systems
• Work with Service Writer to discuss repair estimates and parts
• Complete DOT forms and job documentation accurately
• Maintain shop equipment and pre/post-trip inspections
• Perform advanced diagnostics and triage of complex repairs

Skills

Trailer parts knowledge

Diagnostics

Communication

Safety awareness

Physical stamina

Teamwork

Troubleshooting

Education

High School Diploma/GED with related experience

CDL-A License

Tools

Karmak application

Hand tools

Job description

Cox Fleet

Cox Fleet keeps your fleet moving! Headquartered in Indianapolis, Cox Fleet has grown to become one of the largest fleet maintenance companies in the country. We are the leading provider of on‑site mobile maintenance and repair services nationwide, offering mobile on‑site fleet service for light, medium, and heavy‑duty trucks and trailers. We also service customers utilizing our 50+ nationwide service centers, each offering accident repair, painting, refurbishment, and heavy mechanical repair. We are supported by a 24/7 in‑house call‑center and provide scheduled maintenance services and unscheduled services to fleets anywhere, anytime.

Job Summary

Cox Fleet is currently hiring a Sr. Shop Trailer Mechanic. This is a dedicated on‑site shop position and does not provide emergency side‑of‑the‑road type repairs. The Sr. Shop Trailer Technician will be responsible for performing certified DOT inspections, preventative maintenance inspections, light and advanced repairs, and other duties as assigned such as aluminium and chem‑lite work, trailer brakes, air lines, auxiliary pumps and engines, liftgates, brake chambers, welding, fabrication, replacement of panels, body, and framework. Heavily relied upon for advanced diagnostics and triage of complicated repairs by Shop Trailer Technician I/II, the role is considered the lead on job sites by customers and technicians. A successful Sr. Shop Trailer Technician complies with all company policies and achieves high‑level performance metrics.

Duties

• Always follow and comply with safe operating practices and procedures.
• Independently determine parts required for each job and interact with the Shop Parts Department to obtain them.
• Maintain a clean and safe work environment; assist in cleanup at the end of each day for tools, parts, and equipment.
• Apply knowledge acquired through formal training or on‑the‑job experience to perform one's job; work with, understand, and evaluate technical information related to the job.
• Work with Service Writer to assess customer needs, providing information or assistance, resolving problems, or satisfying expectations.
• Manage concurrent assigned tasks, making effective judgments as to prioritizing work‑related activities and time allocations.
• Act with integrity, demonstrate honesty, keep commitments, and behave consistently while keeping sensitive information confidential and adhering to ethical and professional standards.
• Perform scheduled preventative maintenance (PM), DOT inspections, and follow‑up repairs on light, medium, and heavy‑duty vehicles in a shop environment.
• Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment.
• Use hand tools, precision instruments, trailer tools, welding equipment, lifts, and jacks.
• Document according to company standards and upload pictures of work performed, parts used, and findings observed on Repair Orders (RO) using company‑issued device and/or Karmak application.
• Accurately complete DOT forms and all other documentation in a timely fashion.
• Maintain a high level of productivity and work within or close to most standard repair times.
• Communicate with Shop Manager and support team to obtain approvals on repair estimates, retrieve purchase order numbers, or discuss RO findings and notes.
• Perform all work in compliance with organizational safety, health and environmental policies, and federal regulations, including OSHA, EPA, and DOT.
• Participate and complete all company‑required safety training.
• Maintain shop‑assigned service trucks, conduct safety checks and daily pre/post‑trip inspections.
• Perform minor adjustments and repairs on various trailer equipment and systems including, but not limited to, aluminium and chem‑lite, trailer brakes, air lines, auxiliary pumps and engines, liftgates, brake chambers, and trailer steering systems.
• Adhere to company policies, processes, and procedures.
• Diagnose, adjust, and repair various trailer equipment and systems including, but not limited to, aluminium and chem‑lite, trailer brakes, air lines, auxiliary pumps and engines, liftgates, brake chambers, trailer steering systems, welding, fabrication, replacement of panels, body, and framework.
• Identify problems and determine accuracy and relevance of information using sound judgment to generate and evaluate alternatives.
• Inspect, test, and listen to defective equipment to diagnose malfunctions using test instruments such as handheld computers and pressure gauges.
• Assist Shop Trailer Technician I with diagnostics.
• Support Shop Trailer Technician I/II in obtaining correct parts for each job.
• Perform advanced diagnostics and triage of complicated repairs by Shop Trailer Technicians I/II.

Requirements

• High School Diploma/GED and 5 years’ experience in a related field. The right candidate could also have a different combination, such as any level degree/certification beyond a HS diploma/GED in a related discipline and 3 years’ experience; or 7 years’ experience in a related field.
• Possess and supply a set of hand tools necessary to perform required job duties.
• OEM training and certifications are preferred.
• Participate in and complete all company‑required training.
• Due to interstate operating authority commerce regulations, candidates must be at least 21 years or older.

Skills & Abilities

• Knowledge of trailer parts and systems, including their design, use, repair, and maintenance, to make repairs or perform maintenance services.
• Understand the implications of new information for both current and future problem‑solving and decision‑making.
• Ability to lift, bend, climb, stand, and walk for long periods of time; ability to perform moderately heavy laboring work.
• Ability to exert oneself physically over long periods of time without tiring, which may include performing repetitive tasks.
• Ability to accurately judge which of several objects is closer or farther away from the observer, or the distance between an object and the observer.
• Ability to communicate information in a succinct and organized manner; engage in effective two‑way communication with individuals and groups.
• Ability to determine the type of tools and equipment needed.
• Use logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions, or approaches to problems.

Required Certifications or Obtained Within 18 Months

• ASE T8 (PMI) certification
• ASE 608/609 certification
• CDL‑A License

Preferred Certifications

• ASE T4 (Brakes) certification
• ASE T5 (Suspension) certification
• ASE T6 (Electrical and Electronic Systems)
• ASE T7 (HVAC) certification

Why Cox Fleet?

• Weekly pay – get paid every Friday for added convenience and financial flexibility.
• Safety boots & safety glasses reimbursement.
• Uniforms provided with laundry service where available.
• Technical training provided to advance your career.
• Dedicated career path – over 50% of our front‑line managers are promoted from within.

Benefits

• Health, dental, vision insurance starts day one of employment.
• 401(k) matching starts after 90 days; 100% match up to 6% contribution and an additional 2% discretionary contribution by the company.
• Accrue up to 200 hours (5 weeks) of paid time off based on tenure with the company.
• Tuition assistance/reimbursement.
• Adoption/Surrogacy assistance.
• Pet insurance.
• Multiple ERG, diversity groups, and company‑paid volunteer hours.
• Employee discounts on new vehicle purchases, cellphone plans, ridesharing, home/rental insurance, wellness/fitness incentives, and much more.

Compensation

Hourly pay rate is in the range of $26.73 – $40.10 per hour. The hourly base rate may vary within the anticipated range based on factors such as the ultimate location of the position and the selected candidate’s knowledge, skills, and abilities. Position may be eligible for additional compensation that may include commission (annual, monthly, etc.) and/or an incentive program.

Additional Paid Time Off

Employees are eligible to receive a minimum of 6.67 hours of paid time off every month and seven paid holidays throughout the calendar year. Employees are also eligible for additional paid time off in the form of bereavement leave, time off to vote, jury duty leave, volunteer time off, military leave, and parental leave.

Employment Eligibility

Applicants must currently be authorized to work in the United States for any employer without current or future sponsorship.

EEO Statement

EOE, including disability/vets.