Marine Diesel Mechanic

Amentum is actively seeking a Marine Diesel Mechanic with expertise in small craft and shipboard propulsion and auxiliary systems. This position is ideally suited for individuals with Engineering Department experience, proficient in Marine Propulsion, Electrical, Auxiliary, and control systems. Work is performed at a Navy Training Command located at Naval Amphibious (NAB) Coronado, CA.
Responsibilities:

• Conduct preventive and corrective maintenance
• Operate and control casualties of propulsion systems in-port and underway on small navy watercraft
• Execute pre-start and post-operation checks
• Adhere to Amentum's Ethics Program, Workplace Environment, and Occupational Safety standards
• Maintain cleanliness of assigned work areas or craft

Minimum Qualifications:

• Must be able to obtain and maintain U.S. Naval Base security access clearance. Note: US Citizenship is required for facility credentials/authorization at this work location
• Five (5) years of experience as a Navy Engineman/Navy Construction Mechanic/Navy Electrician's Mate OR equivalent civilian experience
• Experience as a Navy Engineman/Navy Construction Mechanic/Navy Electrician's Mate OR equivalent civilian experience
• Qualified as a Navy Second Class Swimmer or equivalent
• Availability to work alternate schedules as required by training needs
• Willingness to work occasional overtime
• Ability to work in both indoor and outdoor environments and conditions

Preferred Qualifications:

• Prior experience as a Navy Engineman, Electrician or Electronics Technician with Improved Navy Lighterage System (INLS), Maritime Prepositioning Force Utility Boat (MPFUB), Lighter Amphibious Resupply Cargo (LARC), Combat Rubber Raiding Craft (CRRC) or Amphibious Bulk Liquid Transfer System (ABLTS)
• Familiarity with CAT C18 & C4.4, John Deere 6081, Cummins QSM-11, Evinrude Outboard Engines, Hamilton and Wartsila Waterjets, hydraulic and electrical systems
• Experience with 460 and 115 Vac distribution systems, 24 Vdc, diesel engine electronic control systems and programmable logic controllers
• Experience performing preventive and corrective maintenance and preservation of Navy small craft

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.

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:
$28.44 - 35.01
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:
02/09/2026 - 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.