Amentum, a global leader in advanced engineering, technical, and professional services serving the US government, allies, and critical infrastructure sectors, is seeking a Marine Machinist to support a unique US Navy program based on the island of Diego Garcia.
Job Responsibilities
The Marine Machinist is responsible for performing precision machining and repairs on marine vessels and equipment, ensuring optimal functionality and supporting the operation of facilities on Diego Garcia. Responsibilities include:
Operating various machines and tools, including lathes, milling machines, grinders, and other precision equipment to maintain or fabricate parts for marine systems.
Performing alignment, installation, repair, and maintenance on a variety of marine machinery and systems, including but not limited to pumps, valves, engines, gear mechanisms, and hydraulic systems.
Reading and interpreting schematics, blueprints, technical drawings, and instructions to accurately complete assignments.
Diagnosing, troubleshooting, and repairing mechanical issues on marine vessels and equipment.
Assisting in the installation or overhaul of mechanical systems in accordance with technical manuals and established standards.
Using precise measurement tools such as micrometers, calipers, and gauges to ensure parts meet required specifications.
Ensuring all work complies with applicable codes, policies, and safety standards.
Performing routine maintenance checks, including lubricating machinery and performing preventive maintenance to reduce downtime and extend the life of marine equipment.
Maintaining accurate documentation of completed work, parts used, and inspections performed.
Collaborating with other maintenance and marine personnel to coordinate large-scale system repairs and resolve technical challenges.
Required Qualifications:
- 1-3 years of experience in marine machinist work or a related mechanical trade.
- High school diploma or equivalent.
- Proficiency in the operation of machine tools, including lathes, grinders, and milling machines.
- Experience with diagnosing and repairing issues in marine machinery and equipment.
Employees must read, speak, and comprehend English to the extent that they can perform the contract requirements and comply with installation emergency procedures.
Passport must be valid for a minimum of one (1) year or more at the time of hiring.
Ability to obtain country-specific visas per the U.S. Department of State Foreign Clearance Guide.
Ability to successfully pass contract medical requirements and maintain compliance throughout the duration of deployment.
- Must be able to obtain and maintain facility credentials/authorization.
- Valid country driver’s license
Preferred Qualifications
- Certification in machining, marine systems, or a related field.
- Familiarity with marine vessel systems, including propulsion systems, auxiliary machinery, and shipboard support equipment.
- Practical experience working with hydraulics, pneumatics, and precision alignment tools.
- Previous work experience in an austere OCONUS (Outside the Continental United States) environment with a multi-national workforce.
- Strong understanding of safety practices and standards associated with mechanical and machining work in a marine setting.
- Proven capacity to work in austere environments while adhering to strict timelines and procedures.
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, 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 their 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 the job.
Working Environment
This position is located on Diego Garcia, British Indian Ocean Territory (BIOT), a remote overseas location supporting U.S. Government operations. Employees may work in office, industrial, warehouse, port, airfield, and outdoor environments and may be exposed to high temperatures, humidity, inclement weather, noise, dust, and uneven terrain. Work schedules may include evenings, weekends, holidays, and extended hours based on operational requirements.
Physical Requirements
Requirements may include prolonged sitting, standing, walking, climbing stairs, lifting up to 25 pounds regularly and 50 pounds occasionally, and working in both indoor and outdoor environments. Must be able to meet all medical, security, and deployment requirements associated with assignment to a remote overseas location.
Skills Required
- 1–3 years of experience in marine machinist work or a related mechanical trade
- High school diploma or equivalent
- Proficiency operating machine tools, including lathes, grinders, and milling machines
- Experience diagnosing and repairing marine machinery and equipment
- Ability to read, speak, and comprehend English sufficiently to perform contract requirements and comply with emergency procedures
- Passport valid for at least one year at the time of hiring
- Ability to obtain country-specific visas
- Ability to pass contract medical requirements and maintain compliance during deployment
- Ability to obtain and maintain facility credentials or authorization
- Valid country driver’s license
- Certification in machining, marine systems, or a related field
- Familiarity with marine vessel systems, propulsion systems, auxiliary machinery, and shipboard support equipment
- Practical experience with hydraulics, pneumatics, and precision alignment tools
- Previous experience in an austere OCONUS environment with a multinational workforce
- Strong understanding of safety practices and standards for mechanical and machining work in marine settings
- Ability to work in austere environments while adhering to strict timelines and procedures
Amentum Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Amentum and has not been reviewed or approved by Amentum.
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Healthcare Strength — Healthcare offerings are described as comprehensive, with medical, dental, and vision plans and multiple PPO/HSA options. Mental health support via an employee assistance program and other wellness resources is also included in the benefits mix.
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Retirement Support — Retirement support is positioned as a meaningful part of total rewards through a 401(k) plan with employer matching. Profit-sharing contributions and immediate or near-term vesting in some cases further strengthen the retirement value proposition.
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Leave & Time Off Breadth — Time-off benefits are presented as solid for the sector, including tiered PTO accrual by tenure and a set of paid holidays. Role-dependent flexible or remote work options and leave programs add to perceived work-life support.
Amentum Insights
What We Do
Amentum is a premier global technical and engineering services partner supporting critical programs of national significance across defense, security, intelligence, energy, and environment. We draw from a century-old heritage of operational excellence, mission focus, and successful execution underpinned by a strong culture of safety and ethics. Headquartered in Germantown, Md., we employ more than 20,000 people in 48 states and 28 foreign countries and territories. Visit us at amentum.com to explore how we deliver excellence for our customers’ most vital missions.









