Polygon US
MechanicalEngineer
Neural analysis suggests this role is
optimal for Mid+ candidates.
“Mechanical Engineer at Polygon US. Skills: Load calculations, System design, HVAC fundamentals. Perform load calculations. Analyze psychrometric charts”
Industry & Context.
Troubleshooting
Willingness to travel, Travel on short notice, Occasional nights and weekends, Valid US driver's license, Work on construction sites, Work on industrial job sites
What They're Looking For.
Must Have
Bachelor's degree in Mechanical Engineering, Solid understanding of thermodynamics, Solid understanding of heat transfer, Solid understanding of HVAC fundamentals, Comfortable with psychrometric calculations, Written communication skills, Verbal communication skills, MS Office proficiency, Excel proficiency, Demonstrated CAD experience, Willingness to travel on short notice, Ability to work on construction sites, Ability to work on industrial job sites
Nice to Have
EIT certification, 1–3 years of experience, Experience in HVAC, Experience in mechanical contracting, Experience in temporary climate solutions, Experience in dehumidification, Exposure to construction sites, Exposure to manufacturing facilities, Exposure to food production, Exposure to automotive or battery plants, Exposure to aerospace, Exposure to data centers, Exposure to controlled environments, Exposure to labs, Exposure to cleanrooms, Exposure to pharmaceutical facilities, Familiarity with building codes, Familiarity with OSHA site safety, Familiarity with standard PPE requirements, Experience supporting estimating teams, Experience supporting sales teams, Experience supporting field service teams
What You'll Do.
Perform load calculations
Analyze psychrometric charts
Design temporary systems
Develop project layouts
Create equipment schedules
Develop sequences of operation
Support estimating process
Provide pricing inputs
Prepare engineered solutions
Present solutions to clients
Serve as engineering resource
Support field technicians
Troubleshoot equipment deployment
Translate field observations
Develop Standard Operating Procedures
Create technical documentation
Build engineering templates
Improve team efficiency
How You'll Work.
Team & Collaboration
Engineering and Estimating team; Field technician team; Clients; Sales teams
Communication Scope
Client-friendly language; Technical concepts explanation
Process & Methodology
Project lifecycle support
Full Job Description
Role Summary: $90-95k annually Under the direction of the Engineering & Estimating Manager -National, the Project Engineer is responsible for supporting the Engineering and Estimating team across the full project lifecycle, including load calculations, system design, bidding support, client presentations, field deployment, and post-project documentation. This is an engineering-track role with exposure to a wide variety of industries and applications. The day-to-day work is office-based, with travel for site visits, client meetings, and emergency response. Essential Job Functions: Perform load calculations — cooling, heating, moisture, and ventilation — for temporary climate solutions across construction sites, industrial and manufacturing facilities, food production plants, automotive and battery plants, aerospace facilities, data centers, commercial buildings, and labs Perform psychrometric chart analyses and study weather to inform design decisions Design temporary systems from Polygon’s equipment fleet Develop project layouts, equipment schedules, and sequences of operation tailored to each client’s environment and process needs Support the estimating process: take-offs, equipment selection, scope development, and pricing inputs for bids and proposals Prepare and present engineered solutions to clients, general contractors, and internal sales teams Translate technical decisions into clear, client-friendly language Serve as the engineering resource for the field technician team during equipment deployment, startup, commissioning, and troubleshooting Travel to project sites on short notice when needed — for emergency response, project kickoffs, complex deployments, or field issues that require engineering oversight Translate field observations into improvements to design and project execution Develop and maintain Standard Operating Procedures (SOPs) for specific systems, applications, and key clients Create technical documentation, including system narratives, comm
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