Mechanical Engineer - PE (HVAC)

NELSON is seeking a Mechanical Engineer - PE (HVAC) to lead mechanical design efforts and develop comprehensive HVAC solutions for a variety of facility and infrastructure projects. This role requires strong technical expertise, independent design capabilities, and experience delivering complete mechanical systems from initial calculations through construction documentation and administration. The ideal candidate will bring a collaborative approach, a strong understanding of HVAC systems and industry standards, and the ability to provide technical guidance to junior team members.

Attributes to support the NELSON culture:

• Go All In. Own the Outcome. We go all in—with urgency, follow-through, and pride in the result.
• Be Direct. Be Respectful. Be Authentic.  We keep it real—with clarity, candor, and care. 
• Grow with Purpose.  We embrace growth—through learning, coaching, and continuous improvement. 
• Think Bold. Execute Smart.  We think boldly—and pair ambition with discipline. 
• Make Space for Everyone.  We value you—and build a culture where people can thrive and do their best work.

Qualifications:

To perform this job successfully, an individual must be able to perform each essential duty and responsibility satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Critical features of this job are described under the headings below. They may be subject to change at any time due to reasonable accommodation or other reasons.

Essential Duties and Responsibilities include the following. Other duties may be assigned:

• Independently lead mechanical design efforts on small to moderate facility and infrastructure projects.
• Develop complete HVAC designs, calculations, equipment selections, specifications, and construction documents.
• Design unitary HVAC, chilled water, heating hot water, air distribution, and hydronic piping systems.
• Perform load calculations, equipment sizing, and psychrometric analyses, including sensible and latent loads, dehumidification, and reheat.
• Perform hands-on mechanical design and drafting using Autodesk Revit as needed.
• Interpret and apply applicable mechanical codes, ASHRAE standards, and project requirements.
• Coordinate with other disciplines, provide technical guidance to EITs and designers, and manage construction administration.
• Assist senior engineers with complex HVAC systems, central plants, and specialized applications

Education, Experience & Certifications:

• Bachelor's degree in Mechanical Engineering from an ABET-accredited program required.
• Active Professional Engineer (PE) license required.
• 5–10 years of HVAC engineering experience, with demonstrated ability to independently develop complete mechanical designs.
• Strong technical experience with unitary HVAC, chilled water, heating hot water, air distribution, and hydronic systems.
• Thorough understanding of psychrometrics, including independent calculations and application to HVAC design and humidity control.
• Experience with healthcare, justice/detention, K-12 educational, publicly funded, and industrial projects.
• Expert proficiency with Autodesk Revit and Bluebeam Revu required, including hands on design, drafting, and drawing review. Strong knowledge of mechanical codes, ASHRAE standards, equipment selection, and construction specifications.
• Experience with central plants, building automation systems, and complex renovations preferred.
  

Working Conditions & Physical Requirements:

• Hybrid work options available. Periodic travel required for site visits and client meetings.

Benefits of NELSON:  (additional benefit details can be found at: nelsonworldwide.com/careers)