Heavy Vehicle Mechanic

Amentum; United States; On-site; USD 32,000 - 45,000; Full time

Benefits offered by this job

Health insurance

Paid time off and holidays

Retirement benefits (including 401(k) 

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking a Heavy Vehicle Mechanic to operate, repair, maintain, and test heavy construction equipment. The role involves diagnostics, major system repairs, and preventive maintenance across a range of vehicles and flightline support equipment.

The ideal candidate will have 2–5 years of experience, a high school diploma, and the ability to obtain a Public Trust US Government clearance. Amentum emphasizes safety and quality in all tasks.

Qualifications

• High school diploma or equivalent.
• 2–5 years of experience maintaining heavy equipment.
• Licensed or trained to operate heavy equipment.
• Experience in major system repairs.
• Motor vehicle air conditioning certification preferred.
• Specialized knowledge in diesel/heavy automotive repair.
• Ability to read schematics and technical drawings.
• Knowledge of diagnostics and ability to perform technical research on computer.
• English reading/writing proficiency.
• US Citizenship required for Public Trust clearance.

Responsibilities

• Conduct Mobile Maintenance duties: replace hydraulic lines, A/C, wheels/tires, wipers, and light bulbs.
• Perform heavy equipment maintenance including diagnostics and preventive maintenance.
• Disassemble and reassemble engines and mechanical units to inspect parts with test equipment.
• Replace/repair hydraulic cylinders, valves, drive units, suspensions, bearings.
• Operator care: washing, vacuuming, and cleaning.
• Perform routine inspections: check oil, water, tires.
• Promote safety and environmental practices in the workplace.

Skills

Diesel & heavy automotive repair

Reading schematics & blueprints

Diagnostics & computer research

English proficiency

Education

High school diploma or equivalent

Tools

MAXIMO

DPAS

Job description

Purpose and Scope:

The Heavy Vehicle Mechanic operates, repairs, maintains, and function tests heavy power construction equipment such as compressors, pumps, hoists, shovels, trucks, tractors, graders, bulldozers, front-end loaders, scrapers, motor graders, skid steers, backhoe, dump trucks and various flightline support vehicles and associated equipment.

Essential Responsibilities:

• Conducts Mobile Maintenance duties. Replace and repair hydraulic lines, pneumatic equipment, air conditioning systems, wheels/tires, wipers, and light bulbs.
• Perform heavy equipment maintenance activities including installation, repair, troubleshooting, diagnostics, and preventive maintenance.
• Disassemble and reassemble engines and mechanical units to inspect and diagnose parts using computerized test equipment, calibration devices, gauges, etc.
• Replace and rebuild hydraulic cylinders, valves, planetary drive units, suspensions, springs, bushings, and kingpins, seals, and bearings.
• Perform operator care such washing, vacuuming, and cleaning.
• Performs routine inspection and maintenance on vehicles such as checking oil, water, and tires.
• Ensures proper care and maintenance of equipment; promotes continuous improvement of workplace safety and environmental practices.

Administrative Responsibilities:

• Collects vehicle and equipment data; conducts 100% inventory annually.
• Engages with customers and mission partners on maintenance status weekly.
• Coordinate parts and services with vendors daily.
• Inputs data in maintenance system and perform work order processing in computerized maintenance management system daily (i.e. MAXIMO and DPAS).
• Perform other duties as assigned.

Minimum Position Knowledge, Skills, and Abilities Required:

• High school diploma or equivalent
• Two (2) to Five (5) years of experience in operating and maintaining heavy equipment.
• Licensed or trained to operate applicable items of heavy equipment.
• Must be experienced in the repair of major systems.
• Prefer motor vehicle air conditioning certification and experience.
• Specialized knowledge and skills in diesel and heavy automotive repair and maintenance.
• Skilled in replacing major components and parts on construction equipment. ractical understanding of theory of hydraulics (Pascal Theory), pulley, and gear ratio.
• Ability to read and understand schematics, blueprints, and technical drawings.
• Knowledge of diagnostics and ability to conduct technical research on the computer.
• Prefer knowledge of US military heavy vehicles and equipment, Material Handling Equipment (MHE), OSHA, American National Standards Institute (ANSI), American Society of Mechanical Engineers (ASME), military regulations standards, and Original Equipment Manufacturer (OEM) requirements.
• Must be able to speak, read and write English.
• Must be able to obtain and maintain a Public Trust US Government Clearance.
• NOTE: Must be a US Citizen to obtain a Public Trust Clearance.

Work Environment, Physical Demands, and Mental Demands:

Physical requirements include prolonged standing, moderate walking, repeated bending, and climbing, overhead work, working in cramped positions, lifting, pulling and pushing weights up to 100 pounds. Good vision (corrected or uncorrected) and good hearing (with or without a hearing aid) required. Will work inside and outside in various weather conditions, subject to rapid changes in temperature due to nature of work. Hazards include danger from gas fumes, falls, electric shock and burns, cuts and bruises. Must have normal color vision. When performing work, responsible for adhering to environmental, safety, and health standards related to the activity, including the wearing of all Personal Protective Equipment (PPE). Must cease work and notify lead, supervisor, or manager of all unsafe conditions.

Other Responsibilities:

Safety - Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks, and serving on safety committees and teams.

Quality - Quality is the foundation for the management of our business and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations. Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities.

Procedure Compliance - Each employee must read, understand, and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/her job.

Service Contract Act (SCA) Compensation & Benefits:

This is an hourly, overtime-eligible position that falls under the Service Contract Act (SCA). In accordance with the Health and Welfare provisions of the SCA, and in addition to your base hourly rate, you may be eligible to receive an additional health and welfare payment for each hour you work to ensure compliance with the minimums set forth by the act. The amount you are entitled to receive will vary depending upon the fringe benefits you select now and in the future.

Compensation Details:

$28.74

The compensation range or hourly rate listed for this position is provided as a good‑faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance
• Paid time off and holidays
• Retirement benefits (including 401(k) matching)
• Educational reimbursement
• Parental leave
• Employee stock purchase plan
• Tax-saving options
• Disability and life insurance
• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O’Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:

09/21/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.