Amentum is seeking a CAD Engineer III to join our team in McLean, VA! As a CAD Engineer III, you will provide facilities Operations & Maintenance (O&M) support to include HVAC, electrical, plumbing, central plant, custodial, renovations, buildings and grounds, classified waste collection and destruction, auditorium, and special event support at the Agency HQ site and select WMA buildings. Must be able to obtain and maintain a Top Secret/SCI Security Clearance. US Citizenship is required to obtain a Top Secret/SCI Security Clearance.
Essential Responsibilities:
Designs and executes layouts of complex products and equipment of an electrical or mechanical nature requiring the exercise of considerable initiative, latitude, independent judgment and the ability to design independently with only general technical direction. Performs original design work after receiving the design goal or problem, general method of processing and engineering advice on related theoretical aspects to be taken into account in the design. Produces to-scale architectural drawings representing floor and site layout.
- Prepare plans and detail drawings working from sketches or Engineer's notes. Develop 3-D and solid CAD/CAE models to assist in the development of equipment arrangement drawings.
- Select proper size drawing formats, drawing scales, and correct views and sections.
- Research files and catalogs for information required for job.
- Consult with engineering/originator for approval of basic concepts.
- Draft working drawings and wiring diagrams of electronic and electrical equipment for the erection, installation and repair of electrical equipment and wiring.
- Draw plans for installation or as-built layout of plumbing, HVAC, and fire protection equipment.
- Draw plans for structural construction; steel, wood, masonry, and, land layout.
- Check all drawings to assure incorporation of drafting manual standards and procedures, electrical and ISO standards, and other national standards as required; submit drawings for checking.
- Incorporate as-built changes to systems and structures into base site file/drawings.
- Perform surveys of equipment and spaces to incorporate into drawings.
- Collaborate with engineers on new design concepts and drawings.
- Visit job sites and make preliminary layouts to check critical design problems, as necessary.
- Create and manage file system organizational structure to be able to promptly assist customer requests.
- Exercise independent judgement in selecting and interpreting data based on knowledge of the design intent.
- Perform all other position related duties as assigned or requested.
Work Schedule:
M-F 40-45 hours per week, 80 total hours biweekly
Work Environment, Physical Demands, and Mental Demands:
Typical office environment with no unusual hazards, occasional lifting to 20 pounds, constant sitting while using the computer terminal, constant use of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, constant mental alertness, must possess planning/organizing skills, and must be able to work under deadlines.
Minimum Requirements (Knowledge, Skills, and Abilities):
- 5 years of job-related experience.
- Vocational/technical training beyond high school
- Thorough knowledge of drafting technology and operation of CAD software/equipment.
- Position may require small amount of local travel.
- Must be a US Citizen
- Must be able to obtain and maintain a Top Secret/SCI Security Clearance
Minimum Education: High School Diploma or equivalent
Minimum Years of Experience: 3-5 years of relevant experience
Preferred Qualifications:
- Five (5) plus years of relative experience
- An undergraduate degree in Electrical or Mechanical related studies is preferred
- Active Top Secret security clearance
Compensation Details:
$100,000 - $115,000
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:
03/24/2026 - 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.
