Senior Mechanical Engineer – Nuclear Facilities

About the role

Amentum Nuclear Projects, a Tier 1 services provider for the U.S. Department of Energy, the National Nuclear Security Administration (NNSA) and commercial nuclear companies, is looking for a senior-level mechanical engineer based in Oak Ridge, Tennessee. The engineer leads the design, coordination and delivery of building mechanical systems for industrial and government facilities, overseeing HVAC, plumbing and piping designs and leading mechanical engineering teams. The work covers nuclear infrastructure, advanced reactors, fuel cycle facilities and national security programs.

Key responsibilities

• Lead and oversee the design of HVAC, plumbing and piping systems, including B31.3 process piping
• Serve as technical authority for mechanical system design within the assigned project scope
• Review, approve and check engineering calculations, layouts, specifications and drawings
• Resolve complex design issues using sound engineering judgment
• Assist with scope definition, equipment sizing, schedule development and budget control for mechanical design
• Coordinate mechanical designs with structural, electrical, architectural and process disciplines
• Apply codes and standards such as IMC, ASHRAE, NFPA and ASME
• Interface with clients and stakeholders as a senior technical contributor
• Support procurement and construction by reviewing and resolving RFIs, submittals and field issues
• Mentor engineers and designers on codes, standards and best practices

Required profile

• B.S. in Mechanical Engineering from an ABET-accredited program
• 15+ years in industrial/government design of mechanical, HVAC and plumbing systems
• Proven ability to lead engineering teams within budget and schedule
• Thorough knowledge of codes and standards (IMC, NFPA, ASHRAE)
• Professional Engineer (PE) license required
• U.S. citizenship required; must be able to obtain and maintain a security clearance and pass a background investigation and drug screening
• Valid driver's license; occasional site visits and travel of less than 10%

Required skills

• Carrier HAP, Trane TRACE, PipeFlo, AutoCAD, MicroStation
• Preferred: ISO 9001 or NQA 1 quality program experience, Microsoft Office, nuclear or DOE facility design experience

What we offer

• Salary range of $120,000 - $180,000
• Health, dental and vision insurance, paid time off and holidays
• Retirement benefits including 401(k) matching, parental leave and educational reimbursement
• Employee stock purchase plan, disability and life insurance, pet insurance