Mechanical Engineer 4

Amentum; Englewood (CO); On-site; USD 120,000 - 135,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

401(k) retirement plan

Life insurance

Disability insurance

Paid time off and holidays

Parental leave

Job summary

Amentum is seeking a Mechanical Engineer 4 for its Denver office. The role involves leading design, analysis, and review tasks for complex equipment and systems, including expertise in FEA with Ansys Mechanical or Creo Simulate.

The ideal candidate will have a Bachelor of Science in engineering or sciences, 8+ years of related experience, and a PE certificate is preferred. Proficiency with 3D design software (PTC Creo) and Mathcad is recommended.

Qualifications

• Bachelor of Science Degree in an engineering discipline or sciences from a four-year college or university.
• Minimum of 8 years of job-related experience; PE certificate is preferred.
• FEA experience: minimum 2 years with Ansys Mechanical or Creo Simulate.

Responsibilities

• Performs design development, analysis, or review tasks independently.
• Responsible for complete designs, analyses, or design reviews.
• Generates complete design specifications for complex projects.
• May train other engineers on technical issues related to research, design, development, testing and analysis.
• Coordinates with engineering, logistics, finance, and program management to define system specifications.
• Maintains filing systems or databases for tracking project status.
• Develops and maintains technical documentation and system/subsystem specifications.
• Interfaces with internal and external customers from quotation to final design and test activities.
• Conducts site visits and experiments to analyze problems and propose solutions.
• Ensures compliance with engineering documentation standards and test procedures.
• Prepares and presents technical papers and conducts engineering studies.
• Supports development of technical proposals and comments on scope of work.
• May organize and supervise a group on cost, schedule, and performance.

Education

Bachelor of Science Degree in engineering or sciences

Tools

PTC Creo

Mathcad

Ansys Mechanical

Creo Simulate

Job description

Amentum delivers world-class solutions through the expertise, dedication, and collaboration of our people. We partner with our customers to solve complex challenges and are committed to fostering a workplace where employees can grow, succeed, and make a difference. We are currently seeking a Mechanical Engineer 4 to support our Denver office.

Job Description (Duties & Responsibilities)

This position is with dynamic multi-discipline engineering group specializing in the design of prototype/one-off custom equipment, gloveboxes, hot cells, specialty research equipment and custom-designed, remotely operated mechanisms for handling radioactive and hazardous materials.

PRINCIPAL RESPONSIBILITIES (FOR ALL GRADE LEVELS)

• Maintains liaison with design and drafting groups.
• Prepares, reviews and approves drawings as required.
• Advises the Supervising Discipline Engineer about status of assignment(s) with respect to schedule, budgets, delays and adverse problems.
• Ensures quality, quantity and completeness of the assigned engineering tasks.
• Plans and schedules engineering efforts associated with assigned project.
• Maintains timely and accurate oral and written technical reports regarding assigned engineering activities.
• Keeps proper engineering files and records.
• Develops understanding of industry codes and standards.
• Understands and uses computer software and applications associated with engineering assignments.
• Continually upgrades technical knowledge and capabilities and pursues additional coursework and training.
• Complies with company's safety awareness program, office and/or field safety policies.
• Develops an understanding of the role of each functional area within the company.
• Conforms to company core values.
• Acts with integrity in all elements of responsibility.
• Expresses ideas clearly and listens effectively to the ideas of others.
• Supports alignment of customer and company objectives.
• Performs other related engineering work as required.

Purpose/Scope Description

Perform a variety of engineering assignments in planning and overseeing research, development, design, manufacture, test, installation, operation, and maintenance of diverse mechanical equipment and systems and generally as a lead of a design, analysis or review team on the most complex engineering assignments.

Essential Responsibilities

1. 1) Performs a range of design development, analysis, or review tasks independently.
2. 2) Responsible for complete designs, analyses, or design reviews.
3. 3) Generate complete design specifications for the most complex projects.
4. 4) May train other engineers on technical issues related to the research, design, development, testing and analysis of engineering assignments.
5. 5) Coordinate and work closely with other engineering, logistics, financial, and program management disciplines to define system specifications and requirements.
6. 6) Establish and maintain a filing system or databases as needed for tracking project status.
7. 7) Develop, maintain and produce technical documentation and system/subsystem specifications.
8. 8) Direct interface and liaison with internal and external customers at all levels from quotation to final design and test activities, design reviews and technical working group meetings to comply with requirements and specifications.
9. 9) Conduct site visits and experimental investigations and analyze engineering problems, propose solutions and alternatives, and provide recommendations.
10. 10) Verify and comply with engineering documentation standards and test procedures.
11. 11) Prepare, deliver and submit technical papers and perform engineering studies.
12. 12) Support development of technical proposal and provide comments on the technical content and level of effort of the proposed scope of work.
13. 13) May organize and supervise a group of employees for a given project, contract or job with overall responsibility for cost, schedule, technical and employee performance.

Required Qualifications

US Citizenship only. No dual citizenship.

Education: Bachelor of Science Degree (or equivalent education) in an appropriate engineering discipline or the sciences from a four-year accredited college or university.

Experience: Minimum of 8 years of job-related experience or equivalent. PE certificate is preferred.

FEA Experience: Minimum 2 years of FEA experience with Ansys Mechanical or Creo Simulate.

Preferred Qualifications

Proficient with 3D design software (PTC Creo preferred)

Proficient with Mathcad

Demonstrated capability in the design of custom equipment and/or containment systems, development of design documentation including fabrication drawings, engineering analyses, strength of materials calculations, fabrication and procurement specifications and a basic knowledge in the selection of materials.

COMPENSATION

HIRING SALARY RANGE: $120K - $135K (Annually) (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant internal equity, and alignment with market data.)

BENEFITS

Amentum offers the following benefits for this position, subject to applicable eligibilityrequirements: medical dental and vision insurance, 401(k) retirement plan, life insurance, long-term and short-term disability insurance, 15 days of paid time off, and parental leave.

Compensation Details

$120k - $135k

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

10/22/2026 - 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.