Senior Mechanical Engineer – Air Conditioning Job Fullerton area,California USA,Engineering

Position: Senior Mechanical Engineer – Air Conditioning (#2093)

Senior Mechanical Engineer – Air Conditioning

Full-time Fullerton, CA, US Exclusive confidential search — details shared with qualified applicants.

Become a Key Player as a Senior Mechanical Engineer – Air Conditioning

You will lead HVAC system engineering from concept through permit-ready plans, owning calculations, equipment selection, and engineering documentation. You will impact project outcomes across multiple sites with heavy travel (including Arizona, Texas, Washington) while collaborating with project teams, contractors, and permitting authorities. Onsite with extensive travel required.

Here's How You'll Make an Impact on the Team

Perform complete HVAC system engineering and design calculations, including heat-load calculations
Size and route ductwork and piping and develop detailed HVAC system designs
Prepare engineering plans and specifications for permit submittals
Select and specify HVAC equipment and system accessories (chillers, heat pumps, packaged AC, split systems, VRF, boilers, pumps, ventilation fans, controls)
Participate in job walks and site visits to collect field information and resolve real-world installation challenges
Design and size both air-cooled and water-cooled HVAC systems
Support other engineering and design responsibilities as assigned

Here's What You'll Need to Be Successful in This Role

Hands-on HVAC / air-conditioning engineering experience (non-residential systems)
Strong understanding of HVAC engineering calculations and ASHRAE standards
Knowledge of California building and mechanical codes and ability to develop designs suitable for permitting
Experience with chillers, heat pumps, packaged AC, split systems, VRF, boilers, ventilation, ductwork, pumps, and controls
Experience working with actual field conditions and job sites
Proficiency with AutoCAD, Energy Pro, and Bluebeam
Experience preparing California Title 24 energy compliance reports
Valid driver's license

Here's What Else Might Help You Out

Engineering degree
Active California Professional Engineer (PE) license
EPA Universal certification

Pay Range

$120,000 - $140,000/year

Ready to Make Your Mark?

This role may fill quickly. Submit your resume to be considered.