or apply directly on Polygon US's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 26 days Polygon US's roles stay open a median of 28 days
- Reposted
- No
- Salary listed
- Yes 100% of Polygon US's roles list one
- Ghost-job risk at Polygon US
- high 3 stale, 0 reposted of 7 open
- Hiring momentum
- 13 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-09-17
Measured from postings appearing on and disappearing from Polygon US's own greenhouse board since 2026-08-03. Full hiring picture for Polygon US.
About this role
The Mechanical Engineer will support the Engineering and Estimating team throughout the project lifecycle, performing load calculations, system design, and client presentations. Daily tasks include designing temporary climate solutions, conducting psychrometric analyses, and preparing technical documentation. The role involves office work with travel for site visits and emergency responses, requiring effective communication with various stakeholders.
- benefits
- 1/5
- freshness
- 4/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 5/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Polygon US as an employer.
What you need
- 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
- MS Office proficiency, particularly in Excel
- Demonstrated CAD experience
Nice to have
- 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
- Familiarity with building codes, OSHA site safety, and standard PPE requirements
- Experience supporting estimating, sales, or field service teams
What you get
- $90-95k annually
Worth weighing
- Role involves significant travel on short notice, including nights and weekends for emergency response
- Office-based work may limit hands-on engineering experience compared to field roles
Summarised from Polygon US's posting. Read the full original.
Listed by Polygon US on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.
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