Senior Mechanical Engineer: HVAC & Piping Lead

Socket.dev; Oak Ridge (TN); Hybrid; USD 140,000 - 165,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

401(k) matching

Educational reimbursement

Parental leave

Employee stock purchase plan

Disability and life 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 designs, lead mechanical teams, and ensure technical quality and compliance through the project lifecycle.

The role emphasizes collaboration with project management, discipline leads, and clients to deliver fully coordinated, code-compliant solutions.

Qualifications

• B.S. Mechanical Engineering from an ABET accredited program.
• 15+ years in industrial/government design of mechanical systems.
• Proven ability to lead teams within budget and schedule.
• Proficiency with discipline-specific tools (AutoCAD, MicroStation, etc.).
• PE license required.

Responsibilities

• Lead and oversee HVAC, plumbing, and piping system design including B31.3 process piping.
• Serve as technical authority for mechanical design within project scope.
• Review, approve, and check calculations, layouts, specs, and drawings.
• Apply advanced engineering judgment to resolve complex design issues.
• Assist with scope definition, equipment sizing, schedule, and budget for mechanical design.
• Coordinate designs with structural, electrical, architectural and process disciplines.
• Interface with clients and stakeholders as senior technical contributor.
• Provide senior-level support during procurement and construction, including RFIs and submittals.
• Mentor engineers and designers on codes, standards and best practices.

Skills

HVAC design

Piping systems

Leadership

Engineering calculations

Code compliance

Vendor coordination

Review & approval

Project coordination

B31.3 process piping

Team mentorship

Education

ABET-accredited B.S. Mechanical Engineering

Tools

AutoCAD

MicroStation

Carrier HAP

Trane TRACE

PipeFlo

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 designs, lead mechanical teams, and ensure technical quality and compliance through the project lifecycle.

The role emphasizes collaboration with project management, discipline leads, and clients to deliver fully coordinated, code-compliant solutions.