Senior Mechanical Engineer

Liberty Personnel Services, Inc.; Wayne (NJ); On-site; USD 120,000 - 180,000; Full time

Job summary

Liberty Personnel Services, Inc. is seeking a Senior Mechanical Engineer (PE) for data centers and mission-critical projects in the Philadelphia Suburbs.

You will lead HVAC, piping, and cooling system design from concept through construction, mentорing junior engineers and coordinating with clients. Candidates must hold an active PE license, a BS in Mechanical Engineering, and 7+ years of consulting experience, with proficiency in Revit and AutoCAD and familiarity with ASHRAE, NFPA, and IMC

Qualifications

• Active PE license in a U.S. state.
• BS in Mechanical Engineering.
• 7+ years of consulting engineering experience.
• Experience with Revit, AutoCAD and mechanical design software.
• Knowledge of ASHRAE, NFPA, and IMC standards.
• Data center or mission-critical project experience preferred.

Responsibilities

• Lead HVAC, piping, chilled water, and cooling system projects from design through construction.
• Mentor junior engineers and coordinate with clients.

Skills

PE License

Revit

AutoCAD

Mechanical design software

Data center experience

ASHRAE

NFPA

IMC

7+ years experience

Education

BS in Mechanical Engineering

Tools

Revit

AutoCAD

Job description

Senior Mechanical Engineer (PE) – Data Centers & Mission Critical Projects

Location: Philadelphia Suburbs

Join a growing engineering firm working on cutting‑edge data centers, AI infrastructure, and mission‑critical facilities. We're seeking a Licensed Professional Engineer (PE) with 7+ years of mechanical design experience to lead HVAC, piping, chilled water, and cooling system projects from design through construction.

Requirements

• PE License (active in a U.S. state)
• BS in Mechanical Engineering
• 7+ years of consulting engineering experience
• Experience with Revit, AutoCAD, and mechanical design software
• Knowledge of ASHRAE, NFPA, and IMC standards
• Data center or mission‑critical project experience is highly preferred

This is an excellent opportunity to lead complex, high‑profile projects while mentoring junior engineers and working directly with clients.

Candidates must be a U.S. Citizen or Green Card holder.