Senior Mechanical Engineer, PE II — Energy Infrastructure

ENFRA LLC; Philadelphia (Philadelphia County); On-site; USD 117,000 - 176,000; Full time

Job summary

ENFRA LLC is seeking a Mechanical Professional Engineer II to independently apply advanced engineering techniques for HVAC, hydronic, and thermal plant systems on hospital and college campus projects. You will lead portions of projects, ensure code‑compliant and constructible designs, and collaborate with multidisciplinary teams to integrate designs with existing facilities.

The role requires a PE license and 7+ years design experience, with travel 10–25% and opportunities to mentor junior

Qualifications

• Bachelor's degree in architectural or mechanical engineering.
• PE license required; 7+ years design experience.
• Experience coordinating multidisciplinary deliverables and field investigations.

Responsibilities

• Signing and sealing engineering documents.
• Lead design and analysis of mechanical systems for projects of moderate complexity.
• Develop project deliverables including calculations, drawings, and specifications.
• Coordinate with internal disciplines and support construction‑phase activities.
• Interface with clients on technical matters and mentor junior staff.

Skills

Communication skills

Technical writing

Problem solving

Leadership mentorship

Field coordination

Education

Bachelor's degree in mechanical/architectural engineering

Professional Engineer (PE) License

Master's degree (optional)

Job description

ENFRA LLC is seeking a Mechanical Professional Engineer II to independently apply advanced engineering techniques for HVAC, hydronic, and thermal plant systems on hospital and college campus projects. You will lead portions of projects, ensure code‑compliant and constructible designs, and collaborate with multidisciplinary teams to integrate designs with existing facilities.

The role requires a PE license and 7+ years design experience, with travel 10–25% and opportunities to mentor junior