Diesel Mechanic

Job Title: Diesel Fleet Mechanic
Job Description

This role focuses on maintaining and repairing a fleet of diesel vehicles and heavy-duty equipment across two locations in Victoria, TX and Hallettsville, TX. You will perform comprehensive fleet maintenance, diagnostics, and repairs on diesel engines, hydraulic and air brake systems, emissions systems, forklifts, and other heavy-duty equipment. The position requires regular travel between the two sites each week and the ability to work independently under limited supervision while following preventative maintenance programs and safety standards.

Responsibilities

• Perform fleet maintenance on diesel vehicles and heavy-duty equipment across two locations in Victoria, TX and Hallettsville, TX, typically working two days at one site and three days at the other each week.
• Diagnose and repair diesel engines, including class 6–8 vehicles, using diagnostic platforms and tools provided.
• Inspect, service, and repair hydraulic and air brake systems to ensure safe and reliable operation.
• Perform after-treatment and emissions system repairs on diesel vehicles, following manufacturer specifications and standards.
• Use diagnostic platforms such as Noregon, Snap-on, Nexiq, Altel or similar systems to identify issues, interpret diagnostic trouble codes, and determine appropriate repairs.
• Remove and replace mounted wheels and torque them to the correct specifications.
• Carry out preventative maintenance activities, including scheduled oil changes, lubrication, inspections, and documentation of work completed.
• Track vehicle mileage and usage hours to ensure maintenance schedules are followed and updated accurately.
• Manage parts and inventory by identifying required components, tracking usage, and maintaining appropriate stock levels.
• Use shop tools and equipment such as engine hoists, welding equipment, tire changers, and small tools to complete repairs safely and efficiently.
• Repair and maintain forklifts and related equipment, including propane, electrical, battery, hydraulic systems, and pallet jacks.
• Work with manufacturing standard manuals and OEM support tools to follow current standards and stay up to date with the latest technology and repair procedures.
• Diagnose and repair electronic modules and other electronic components as part of overall vehicle and equipment maintenance.
• Work under limited supervision, performing tasks independently and making sound decisions when working remotely from a direct supervisor.
• Use computers and digital devices such as iPads, desktop computers, handheld devices, and laptops to perform diagnostics, access manuals, and complete documentation.
• Follow safety procedures and best practices while performing physical tasks such as lifting, pinching, bending, reaching, climbing, and handling objects.
• Communicate repair findings, completed work, and any additional service needs clearly and accurately through written and digital reports.

Essential Skills

• At least 3 years of diesel fleet mechanic experience.
• Experience or training involving hydraulic and air brake systems.
• Experience performing after-treatment and emissions repairs on class 6–8 diesel vehicles.
• Experience using diagnostic platforms such as Noregon, Snap-on, Nexiq, Altel or similar tools.
• Experience removing and replacing mounted wheels and applying correct torque specifications.
• Experience utilizing diagnostic troubleshooting codes to identify and resolve mechanical and electronic issues.
• Experience with parts management and inventory controls.
• Experience working under limited supervision and performing work independently, including working remotely from a direct supervisor.
• Experience using shop tools such as engine hoists, welding equipment, tire-changing equipment, and small hand tools.
• Experience with preventative maintenance programs, including following schedules for oil changes, documenting work completed, and tracking miles and usage hours.
• Experience working with computers and digital devices such as iPads, desktop computers, handheld computers, and laptops for diagnostics and documentation.
• Experience repairing forklifts, including propane, electrical, battery, hydraulic systems, and pallet jacks.
• Experience working with manufacturing standard manuals and OEM support tools, and staying current with standards and technology.
• Experience repairing heavy-duty equipment, including class 6, 7, and 8 vehicles.
• Ability to provide and use your own basic hand tools for daily work.
• Ability to perform physical tasks including lifting, pinching, bending, reaching, climbing, and handling objects, with or without accommodation.
• Ability to lift up to 50 pounds, with or without accommodation.
• At least 18 years of age.

Additional Skills & Qualifications

• Hands-on experience with diesel engines, including troubleshooting and repair.
• Mechanical aptitude in areas such as electrical systems, hydraulics, and pneumatics.
• Experience performing preventive maintenance and documenting all work in an organized manner.
• Welding experience for repairs and fabrication as needed.
• Strong familiarity with fleet maintenance practices and standards.
• Comfort working with ergonomic and high-tech diagnostic equipment provided on site.
• Ability to interpret and follow OEM procedures, service bulletins, and technical documentation.
• Strong attention to detail and commitment to maintaining safety and quality standards.
• Effective time management skills to handle responsibilities across multiple locations each week.

Why Work Here?

You will join a professional maintenance operation that invests in modern diagnostic tools, ergonomic equipment, and OEM support resources to help you perform at your best. The role offers variety by working on a wide range of diesel vehicles, forklifts, and heavy-duty equipment, as well as exposure to evolving technologies and standards. You will work with a high degree of independence, allowing you to develop your technical expertise and problem-solving skills while contributing directly to the reliability and safety of a critical fleet.

Work Environment

This position is based across two locations in Victoria, TX and Hallettsville, TX, with a regular weekly schedule that typically splits time between both sites (for example, two days at one location and three days at the other). You will travel between these locations as part of your normal work routine and must be comfortable commuting to both. The work takes place in a shop environment where you will use diagnostic, ergonomic, and high-tech equipment provided by the employer, alongside your own basic hand tools. Daily tasks involve physical activity, including lifting up to 50 pounds, bending, reaching, climbing, and handling various components, with or without accommodation. You will work with engine hoists, welding equipment, tire-changing machinery, and other shop tools, as well as computers, iPads, laptops, and handheld devices for diagnostics and documentation. The environment emphasizes safety, adherence to preventative maintenance schedules, and efficient, independent work under limited direct supervision.

Job Type & Location

This is a Contract to Hire position based out of Gonzales, TX.

Pay and Benefits

The pay range for this position is $34.00 - $37.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a fully onsite position in Gonzales,TX.

Application Deadline

This position is anticipated to close on Jul 1, 2026.

About Aerotek

Aerotek® Inc. provides staffing and services solutions in manufacturing, logistics, construction, aviation, facilities and maintenance. We provide the expertise, solutions and people required to rise to the challenges of North American industry. Headquartered in Hanover, Md., Aerotek operates a unified network of over 200 offices across North America, supporting more than 18,000 clients each year. Aerotek is an Allegis Group company, the global leader in workforce and business solutions. To learn more, visit: Aerotek.com | 1-888-AEROTEK.

Aerotek offers weekly pay, employee benefits including medical, dental & vision, life insurance, health advocacy and employee assistance programs, a 401(k) plan, and employee discounts.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance:
Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector:
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):
We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.

We know that finding work is hard, and finding meaningful work is harder. Aerotek connects 180,000+ light industrial and skilled trades workers with 14,000+ employers each year, helping our workers navigate an evolving labor market and find jobs that meet their goals, skills, and interests. Since 1983, we have provided a variety of career opportunities across North American industry – from short-term assignments at Fortune 500 companies where you can build your skills, to long-term opportunities where you can play a vital role in solving companies’ construction, manufacturing, and maintenance challenges. Our 1,500+ experienced recruiters across 250+ offices work relentlessly to put our workforce in a position to thrive. Let us rise to meet your challenges and put our people-are-everything spirit to the test as your career continues to grow.