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Mechanical Engineer

Polygon US -
Orlando, FL

Apply Now

Job Details

$90,000 - $95,000 a year
10 days ago

Qualifications

CAD
Spreadsheets
Microsoft Office
Driver's License
Thermodynamics

Full Job Description

Role Summary:

$90-95k annually

Under the direction of the Engineering & Estimating Manager -National, the Mechanical 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, commissioning checklists, monitoring plans, and project closeout packages
Build out engineering templates and reference materials to improve consistency and efficiency across the team

Job Qualifications:

Bachelor’s degree in Mechanical Engineering or a related field
Solid understanding of thermodynamics, heat transfer, and HVAC fundamentals
Comfortable with psychrometric calculations
Strong written and verbal communication skills, with the ability to explain technical concepts to engineers, salespeople, technicians, and clients
MS Office proficiency across the board, with Excel as a particular strength
Demonstrated CAD experience
Willingness to travel on short notice, including occasional nights and weekends for emergency response
Valid US driver’s license and the ability to work on construction and industrial job sites

Preferred Training Requirements and Competencies:

EIT certification
1–3 years of experience in HVAC, mechanical contracting, temporary climate solutions, dehumidification, or a related field
Exposure to construction sites, manufacturing facilities, food production, automotive or battery plants, aerospace, data centers, or controlled environments such as labs, cleanrooms, and pharmaceutical facilities
Familiarity with building codes, OSHA site safety, and standard PPE requirements
Experience supporting estimating, sales, or field service teams

Demonstration of the Polygon Values:

Integrity
Excellence
Empathy

Apply Now

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