About this opportunity
Amentum lists this Senior-Level Process Engineer (Hybrid/Remote) opportunity in oak ridge, Tennessee. Review the employer’s description below for duties, qualifications and application requirements.
Job description
Senior-Level Process Engineer (Hybrid/Remote)
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.
Description
As a senior-level process engineer, you will provide senior technical leadership in the design, analysis, and documentation of nuclear and chemical process systems, supporting projects from concept through detailed design and execution of DOE and nuclear facility projects.
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 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
Prior nuclear, DOE, or high‑hazard 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, problem‑solving, and communication skills
Master’s degree in Engineering from an ABET‑accredited institution
Self‑motivated, detail‑oriented, and team‑focused 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 lbs occasionally
Vision correctable to 20/20
Ability to read and use computer‑aided 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 pass pre‑employment background investigation and drug screening
Willingness to work overtime or outside normal hours as needed
Professional appearance appropriate for a customer‑facing 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 at.
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Who can apply
Review the original listing for work authorization, qualifications and employer requirements.