Senior Mechanical Engineer - Lead Building Systems (Hybrid)

Amentum company; Oak Ridge (TN); Hybrid; USD 140,000 - 165,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

PTO

401(k) matching

Education reimbursement

Parental leave

Employee stock purchase plan

Disability insurance

Life insurance

Pet insurance

Job summary

Amentum is seeking a Senior Mechanical Engineer to lead the design, coordination, and delivery of building mechanical systems for industrial and government facilities. You will oversee HVAC, plumbing, and piping design, mentor teams, and ensure compliance with codes and Amentum’s quality procedures.

The role requires PE licensure, 15+ years of experience, and proficiency with industry tools. Hybrid work arrangements may be available based on project requirements.

Qualifications

• B.S. in Mechanical Engineering from an ABET-accredited program.
• 15+ years in industrial/government design of Mechanical, HVAC, Plumbing Systems, and related mechanical building systems.
• Proven ability to lead teams of engineers and designers within budget and schedule constraints.
• Professional Engineer (PE) license required.
• Proficiency with discipline-specific tools such as Carrier HAP, Trane TRACE, PipeFlo, AutoCAD, MicroStation.

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 assigned project scope.
• Review, approve, and check engineering calculations, layouts, specifications, and drawings.
• Apply advanced engineering judgment to resolve complex design issues.
• Support project planning by assisting with scope definition, equipment sizing, schedule development, and budget control for mechanical design activities.
• Coordinate mechanical designs with structural, electrical, architectural, and process disciplines.
• Interface with clients and other stakeholders as a senior technical contributor.
• Provide senior‑level support during procurement and construction, including RFIs, submittals, and field issues.
• Mentor and guide engineers and designers on codes, standards, and best practices.
• Ensure all work complies with Amentum’s engineering and quality procedures.

Skills

Leadership

Project coordination

Mentoring

Engineering judgment

Education

ABET-accredited Mechanical Engineering program

Tools

Carrier HAP

Trane TRACE

PipeFlo

AutoCAD

MicroStation

Job description

Amentum is seeking a Senior Mechanical Engineer to lead the design, coordination, and delivery of building mechanical systems for industrial and government facilities. You will oversee HVAC, plumbing, and piping design, mentor teams, and ensure compliance with codes and Amentum’s quality procedures.

The role requires PE licensure, 15+ years of experience, and proficiency with industry tools. Hybrid work arrangements may be available based on project requirements.