Machinist

Amentum; Aberdeen (MD); On-site; USD 58,000 - 65,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

PTO and holidays

401(k) matching

Educational reimbursement

Parental leave

Employee stock purchase plan

Job summary

Amentum is seeking a Machinist to support the Prototyping Integration Facility (PIF) at Aberdeen Proving Grounds, MD. You will fabricate, assemble and test components for C5ISR prototypes, working from engineering drawings and specifi-cations in a well-equipped shop.

The role requires experience with CNC machines, CAM operations, and the ability to obtain a Secret clearance. It offers hourly compensation under SCA with comprehensive health and welfare benefits and a strong path for professional

Qualifications

• High School Diploma required.
• Completion of a four-year apprenticeship program and have two years as a Journeyman Machinist or a minimum of eight years’ experience as a Journeyman Machinist.
• Experience with machining equipment including CNC machines and CAM operation is required.

Responsibilities

• Support the C5ISR Center in the Fabrication and Integration Branch.
• Set up and operate a full range of machine tools in a prototype development shop.
• Work from engineering design drawings and technical specifications.
• Maintain dimensional accuracy to specified tolerances using measuring instruments.
• Fabricate and construct mechanisms, models and instruments to engineering requirements.
• Set up and operate CNC machines (Machining Center, Lathe, Milling) as needed.
• Work independently with minimal supervision.

Education

High School Diploma

4-year apprenticeship program

Journeyman Machinist experience

8 years journeyman experience

Tools

CNC machines

CAM operation

MasterCam

Esprit

Job description

Amentum is currently seeking a Machinist to support the Prototyping Integration Facility (PIF) of the Command, Control, Communication, Computers, Cyber, Intelligence, Surveillance and Reconnaissance Center (C5ISR) at the Aberdeen Proving Grounds, MD. This project will provide the U.S. Army, U.S. Army Futures Command, U.S. Special Forces and the U.S. Marine Corps integration of C5ISR operational prototypes onto a range Military Weapon Systems & Platforms (air, ground & sea) as well as performing C5ISR prototyping, integration, and testing support based on Real-World emerging needs of the Warfighter.

Job Duties and Responsibilities:

• Support the C5ISR Center in the Fabrication and Integration Branch.
• Set up and operate a full range of machine tools found in a well-equipped prototype development shop.
• Work from engineering design drawings and technical specifications.
• Maintain dimensional accuracy, to specified tolerances, during machining processes, through the use of measuring instruments (e.g., vernier calipers, inside/outside & depth micrometers, gage blocks, surface and height gages, and dial indicators).
• Fabricate and construct mechanisms, models and instruments that fulfill engineering requirements.
• Determine necessity for special tools, dies and fixtures required to accomplish intricate machining and assembly operations and set-up and operate CNC machines (Machining Center, Lathe and Milling Machine).
• Work independently, with minimal supervision.

Required Qualifications:

• Must have a High School Diploma.
• Must have completed a four (4) year apprenticeship program and have two (2) years as a Journeyman Machinist or have a minimum of eight (8) years’ experience working as a Journeyman Machinist.
• Experience with machining equipment including Computer Numerical Control (CNC) machines
• Knowledge of Computer Aided Manufacturing (CAM) operation is required.
• Must have the ability to obtain an Active Secret US Government Clearance. Please note US Citizenship is required to maintain a Secret Clearance

Preferred Qualifications:

• Experience with MasterCam and or Esprit software
• Experience in the manufacture of communications-electronics or military systems
• Graduate of a technical school

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:

$41.83 to $47.12

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:

11/02/2026 - 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.