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Senior-Level Process Engineer (Hybrid/Remote)

Description:

As a senior-level process engineer, you will provide senior level technical leadership in the design, analysis, and documentation of nuclear and chemical process systems, supporting projects from conceptual development through detailed design and execution of DOE and nuclear facility projects.

The Senior Process Engineer serves as a technical authority for process systems, performs and approves complex engineering calculations, develops process and equipment specifications, and ensures compliance with applicable nuclear, safety, and quality requirements.

Key Responsibilities:

• Lead and independently execute process engineering design activities for nuclear and chemical process systems
• Perform, review, and approve complex process engineering calculations
• Develop and review:
  • Engineering calculations
  • Process flow diagrams (PFDs)
  • Piping and instrumentation diagrams (P&IDs)
  • Process equipment specifications and data sheets
  • Technical reports and formal design documentation
• Apply engineering judgment to resolve complex technical and regulatory issues
• Ensure process designs comply with applicable DOE requirements, nuclear safety expectations, and quality procedures
• Support design reviews, readiness activities, and technical evaluations
• Interface with safety, operations, mechanical, electrical, and I&C disciplines to ensure fully integrated solutions
• Serve as a technical lead or subject matter expert (SME) within multidisciplinary project teams
• Provide technical direction and mentoring to junior engineers and designers
• Support project planning, scope development, and execution strategies
• Interface directly with clients, project management, and stakeholders as a senior technical contributor
• Support procurement, construction, startup, and operational readiness activities as required
• Review vendor submittals and technical documentation
• Support troubleshooting, design changes, and configuration control processes

Basic Qualifications:

• B.S. Chemical Engineering from an ABET accredited engineering program
• 15+ years in in process engineering roles within industrial, nuclear, or government facilities U.S. Citizenship required
• Demonstrated experience performing and approving formal process engineering calculations
• Strong background in process system and equipment specification
• Experience working within regulated environments and structured engineering procedures
• Professional Engineer (PE) license, required

Preferred Qualifications:

In addition to the Basic Qualifications the ideal candidate might also have:

• Prior nuclear, DOE, or highhazard facility design experience
• Experience with nuclear material or uranium processing systems
• Experience working under a formal quality program (ISO 9001, NQA 1)
• Experience managing or reviewing the work of other engineers or designers
• Professional Engineer (PE) license, or ability to obtain
• Strong analytical, problemsolving, and communication skills
• Master's degree in Engineering from an ABETaccredited institution
• Selfmotivated, detailoriented, and teamfocused professional

Work Environment:

• Primarily office-based work in a secure engineering environment
• Amentum office location is preferred; hybrid or remote work may be available by prior agreement based on role and project requirements
• Occasional exposure to industrial facilities, which may include elevated noise levels, hazardous materials, or controlled areas
• Site visits may be required

Physical Requirements:

• Ability to sit or stand for extended periods
• Ability to lift up to 35 lbsoccasionally
• Vision correctable to 20/20
• Ability to read and use computeraided design software effectively
• Appropriate PPE and training will be provided as required

Compliance & Eligibility Requirements:

• U.S. Citizenship required (no dual citizenship)
• Valid driver's license is required
• Ability to obtain and maintain a security clearance
• Ability to passpre-employment background investigation and drug screening
• Willingness to work overtime or outside normal hours as needed
• Professional appearance appropriate for a customerfacing engineering environment
• Travel required: less than 10%

Compensation Details:

$140,000 - $190,000

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:

04/21/2026 - 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 atLabor Laws Posters.