Mechanical Process Designer

Amentum; Greenville (SC); On-site; USD 55,000 - 70,000; Full time

Benefits offered by this job

Health, dental, and vision 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 Mechanical Process Designer for its Advanced Solutions Group. The role involves preparing detailed construction drawings for pipe/duct layouts and mechanical equipment, and coordinating with mechanical, electrical, and structural teams across multiple offices in TN, MI, or SC.

The candidate will produce engineering sketches and ensure complete drawing packages, supporting documentation, and timely project deliverables while adhering to project standards and procedures.

Qualifications

• US citizenship required to comply with government requirements.
• Two years of vocational/college training with drafting/engineering courses plus at least two years of related experience.
• Working knowledge of CAE/CAD systems.
• Understanding of drafting principles (dimensioning, lettering, layout).
• Familiarity with piping/ducting and component layout for process mechanical design.
• Experience with AutoCAD and 3D modeling; ability to produce 2D drawings from 3D models (Plant 3D, Revit, Inventor, Creo).
• Ability to produce complete design/shop drawings meeting standards.

Responsibilities

• Work under the Lead Process Engineer.
• Prepare detailed construction drawings for pipe/duct layouts and equipment.
• Create sketches and drawings per project standards.
• Coordinate with disciplines (mechanical, electrical, structural).
• Ensure timely production of drawing packages, spreadsheets, and databases.
• Familiarize with office and department work processes.

Skills

Drafting principles

Piping/ducting layout

CAE/CAD literacy

2D/3D drawing production

Education

Two years vocational/college with drafting/engineering courses

Tools

AutoCAD

Plant 3D

Revit

Inventor

Creo

Job description

Amentum is a global leader in advanced engineering and innovative solutions, supporting critical missions across defense, intelligence, energy, and civilian sectors. Our people are our competitive advantage, driven by purpose, collaboration, and a commitment to delivering excellence for our customers and communities.

We are seeking a Mechanical Process Designer to join Amentum’s Advanced Solutions Group. Candidates may be based at either our Tullahoma, TN; Farmington Hills, MI; or Greenville, SC office.

Our Advanced Solutions Group delivers the design, construction, and operation of unique and complex research and development facilities across the nuclear, automotive, motorsports, defense, and aerospace industries. Our team has supported an impressive range of clients, including Audi, Boeing, BMW, Fiat Chrysler, Ford, Honda, General Motors, NASA, the U.S. Air Force, U.S. Navy, U.S. Department of Energy, Volkswagen, and organizations throughout North America, Europe, and Asia.

Essential Responsibilities:

• Work closely under the direction of the Lead Process Engineer.
• Prepare detailed construction drawings for pipe/duct layouts and mechanical equipment.
• Prepare engineering sketches, detailed drawings, and design information according to project standards and procedures.
• Communicate and coordinate directly with other disciplines, including mechanical, electrical, structural, and project team members.
• Ensure complete and timely production of drawing packages, spreadsheets, and databases to document design-related information.
• Become familiar with work processes for the office and the department.

Required Qualifications:

• US citizenship is required to comply with government customer requirements and/or applicable government regulations.
• Requires certification of two (2) years training from a vocational school or two (2) years college with courses relevant to drafting or engineering principles plus a minimum of two (2) years of experience. Additional relevant education may be substituted for a portion of the progressive experience.
• Must have working knowledge of CAE/CAD systems.
• Requires working knowledge in the use of drafting equipment and in the application of drafting principles (descriptive geometry, lettering, dimensioning, layout, detail, etc.) and requires a general working knowledge piping/ducting and component layout commonly associated with process mechanical design.
• Requires working knowledge of understanding and producing process mechanical design and layouts drawings for construction (i.e. piping, ducting, P&ID’s, PFD’s, mechanical components, and supporting details.)
• Requires working knowledge of AutoCad. Working knowledge of 3D modeling and producing 2D construction drawings from the model is required (using software such as Plant 3D, Revit, Inventor, Creo or other related software packages).
• Able to produce a set of design and/or shop drawings that adequately depicts the design, is clear, concise, as free from errors as possible, and meets the job standards and specifications.

Description of Work Environment:

• Work will mainly be performed in an inside-office environment.
• Field work may be required, including climbing test stands and working around machinery.
• Travel may be required to support design reviews, attend factory acceptance testing of equipment, support construction activities, and provide onsite support for startup and commissioning activities.

Compensation Details:

$55,000 - $70,000

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:

10/16/2026 - 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.