Entry-Level Mechanical Engineer – Nuclear Facilities

Amentum; Oak Ridge (TN); Hybrid; USD 80,000 - 100,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

Retirement benefits (401(k) matching)

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Job summary

Amentum is seeking an entry-level Mechanical Engineer based in Oak Ridge, Tennessee, to design and coordinate building mechanical systems for industrial and government facilities. You will oversee HVAC, plumbing, and piping designs and lead mechanical engineering teams to ensure technical quality and regulatory compliance.

You will collaborate with project management, discipline leads, and clients to deliver fully coordinated, code-compliant engineering solutions in line with Amentum’s quality

Qualifications

• B.S. Mechanical Engineering from ABET-accredited program.
• Experience with HVAC, plumbing, and piping design tools.
• Knowledge of International Mechanical Code, NFPA, ASHRAE, ASME.

Responsibilities

• Design HVAC, plumbing, and piping systems including process piping.
• Serve as technical authority for mechanical design within project scope.
• Review, approve, and check engineering calculations, layouts, specifications, and drawings.
• Coordinate mechanical designs with structural, electrical, architectural, and process disciplines.
• Provide senior-level support during procurement and construction phases, including RFIs and submittals.

Education

B.S. Mechanical Engineering (ABET accredited)

Tools

Carrier HAP

Trane TRACE

PipeFlo

AutoCAD

MicroStation

Job description

Amentum is seeking an entry-level Mechanical Engineer based in Oak Ridge, Tennessee, to design and coordinate building mechanical systems for industrial and government facilities. You will oversee HVAC, plumbing, and piping designs and lead mechanical engineering teams to ensure technical quality and regulatory compliance.

You will collaborate with project management, discipline leads, and clients to deliver fully coordinated, code-compliant engineering solutions in line with Amentum’s quality