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Diesel Engineer Jobs in Texas (NOW HIRING)

Diesel Laptops

Software Engineer

Dallas, TX · On-site

We offer Cummins, Detroit Diesel, Mack, Volvo, International, CAT, Allison, Eaton Transmission ... Help build diagnostic products from the ground up - join our other engineering team to create ...

Diesel Laptops

Software Engineer

Dallas, TX

We offer Cummins, Detroit Diesel, Mack, Volvo, International, CAT, Allison, Eaton Transmission ... Help build diagnostic products from the ground up - join our other engineering team to create ...

Tamus

Diesel Technician III

College Station, TX · On-site

$33.33/hr

This includes, but is not limited to, complex electrical repairs, CAN network diagnosis, and troubleshooting and programming various multiplex systems. The Diesel Technician III will direct work of ...

Turner Industries

Diesel Mechanic

Texas City, TX · On-site

$33/hr

Post-secondary certificate or degree in engineering OR training as a mechanic is a plus * 5+ years of experience with diesel/heavy equipment repair * TWIC Card * Valid driver's license and a clean ...

Thompson Pipe Group

Diesel Mechanic

Alvarado, TX · On-site

$22.50 - $29.75/hr

Who We Are Thompson Pipe Group is a privately held family business of engineers, contractors, and ... Maintains the plant's mechanical, diesel, electrical, and electronic equipment. Welds to repair and ...

Thompson Pipe Group

Diesel Mechanic

Conroe, TX · On-site

$21.50 - $28.25/hr

Who We Are Thompson Pipe Group is a privately held family business of engineers, contractors, and ... Maintains the plant's mechanical, diesel, electrical, and electronic equipment. Welds to repair and ...

Addison Group

Field Service Engineer

Houston, TX · On-site

$40 - $50/hr

Field Service Engineer - Marine Diesel Engines Location: Houston, TX Compensation: $40.00 - $50.00 / Hourly Benefits: medical, dental, vision, PTO Must be authorized to work in the United States.

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How much do diesel engineer jobs pay per hour?

As of Aug 6, 2026, the average hourly pay for diesel engineer in Texas is $37.03, according to ZipRecruiter salary data. Most workers in this role earn between $30.48 and $42.12 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a diesel engineer, and why are they important?

To thrive as a Diesel Engineer, you need strong mechanical aptitude, knowledge of diesel engine systems, and typically a degree or diploma in mechanical or automotive engineering. Familiarity with diagnostic tools, engine management software, and industry certifications such as ASE Diesel Certification are often required. Problem-solving ability, attention to detail, and effective communication are standout soft skills in this role. These skills ensure accurate diagnostics, efficient repairs, and reliable engine performance in various industrial and transportation settings.

How much do diesel engineers get paid?

Diesel engineers typically earn a median annual salary of around $50,000 to $70,000, depending on experience, location, and certifications. Skilled diesel engineers with specialized knowledge of engines and maintenance procedures can earn higher wages, especially in industrial or transportation sectors.

What does a diesel engineer do?

The duties of a diesel engineer or mechanic are to inspect, maintain, and repair diesel engines. They perform diagnostics on engines and inspect the parts and system machinery to determine what service is required on the vehicle. A diesel engineer regularly utilizes diagnostic equipment and other tools, and they should have an in-depth knowledge of the diesel electrical system. Customer service skills are also important when describing a repair to a customer.

What is the difference between Diesel Engineer vs Mechanical Engineer?

AspectDiesel EngineerMechanical Engineer
CertificationsRelevant certifications in diesel systems, such as ASE or manufacturer-specific trainingEngineering degrees, often a Bachelor's in Mechanical Engineering
Work EnvironmentWorkshops, repair facilities, and on-site at transportation or industrial companiesDesign offices, manufacturing plants, or research labs
Industry UsageTransportation, maritime, and industrial sectors focusing on diesel enginesBroad industry applications including automotive, aerospace, manufacturing, and energy

Diesel Engineers specialize in maintaining and repairing diesel engines, often requiring specific certifications and working in hands-on environments. Mechanical Engineers have a broader scope, focusing on design, analysis, and development across various engineering fields. While both roles require engineering knowledge, Diesel Engineers focus more on practical maintenance within specific industries, whereas Mechanical Engineers are involved in design and innovation across multiple sectors.

What are some typical challenges diesel engineers face when working on large-scale projects?

Diesel Engineers working on large-scale projects often encounter challenges such as coordinating with multidisciplinary teams, troubleshooting complex engine issues under tight deadlines, and ensuring compliance with strict environmental and safety regulations. Effective communication and adaptability are crucial, as project requirements may change and unexpected technical problems can arise. Additionally, staying up-to-date with advancements in diesel technology and emission standards is essential for success in this dynamic field.

What is a diesel engineer?

Diesel Engineers are specialized professionals who design, maintain, repair, and oversee diesel engines and related systems. They work with a variety of diesel-powered equipment, such as trucks, buses, ships, generators, and heavy machinery. Their responsibilities typically include diagnosing engine problems, performing routine maintenance, ensuring compliance with safety standards, and sometimes upgrading engine systems for better efficiency. Diesel Engineers may work in industries like transportation, construction, agriculture, or energy, and often need strong mechanical skills and knowledge of diesel engine technology.
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Diesel Engineer jobs near you
Infographic showing various Diesel Engineer job openings in Texas as of July 2026, with employment types broken down into 91% Full Time, 7% Part Time, 1% Contract, and 1% Nights. Highlights an 100% Physical job distribution, with an average salary of $77,022 per year, or $37 per hour.

On-Road Field Diesel Mechanic

Gaines and Company Site Development

Spring, TX • On-site

$22.25 - $29.25/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 6 days ago

Job description

Job Summary
Founded in 1954, Gaines and Company is a well-established residential and commercial site developer. We are seeking a skilled and experienced On-Road Field Diesel Mechanic to join our team and provide essential maintenance and repair services for our heavy equipment at various job sites.
As an On-Road Field Diesel Mechanic, you will be responsible for the maintenance, repair, and troubleshooting of our heavy diesel-powered equipment at various job sites. You will be provided with a company truck and will travel to different locations to perform your duties. This role requires a strong understanding of heavy equipment and diesel engine mechanics, excellent troubleshooting skills, and the ability to work independently in a field environment.
Responsibilities
  • Perform on-site maintenance and repairs of heavy diesel-powered equipment, including excavators, bulldozers, loaders, and other construction machinery.
  • Travel to various job sites to diagnose and resolve mechanical and diesel engine issues.
  • Conduct routine maintenance services, including oil changes, filter replacements, and inspections of diesel engines and associated systems.
  • Troubleshoot and repair hydraulic, electrical, and diesel engine systems.
  • Maintain accurate records of maintenance and repair activities.
  • Drive and maintain the company-provided service truck.
  • Perform maintenance and repairs to light trucks as needed.
  • Ensure all work is performed safely and efficiently.

QUALIFICATIONS:
  • Minimum of 3-5 years of experience in heavy equipment and diesel engine maintenance and repair.
  • Strong mechanical and technical skills, with a focus on diesel engines.
  • Excellent troubleshooting and diagnostic abilities, especially with diesel systems.
  • Familiarity with hydraulic and electrical systems.
  • Light truck maintenance and repair experience is preferred.
  • Ability to work independently and manage time effectively.
  • Valid driver's license and a clean driving record.
  • Post-secondary degree or certification in heavy equipment/diesel mechanics is preferred but not required.
  • Experience with diagnostic tools.
  • Familiarity with parts and electronic components of complex machinery and engines.

Benefits
  • Health Insurance
  • Dental and Vision Insurance
  • Life Insurance
  • Paid Holidays
  • Paid Vacation
  • Year End Bonus
  • 401K/Profit Sharing
  • Short Term Disability
  • Safety Training

About Gaines and Company
Gaines & Company, founded in 1954, is a well-established residential and commercial site developer. For over 60 years, Gaines & Company has utilized experience in underground utilities, grading and excavating, sediment and erosion controls, road work such as paving and sidewalks, and storm water management to work with homebuilders, developers, general contractors, underground utility contractors, and military/federal contractors.
We are a Top 600 Specialty Contractor, as ranked by Engineering-News Record, working with state, federal and municipal authorities in Maryland, North Carolina, Washington D.C., and Delaware.

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