Top 1 Sr. thermodynamics engineer Jobs in Coolidge, Az

Sr. Thermodynamics Engineer
XNRGY Climate Systems —Mesa, AZ
- Full-time
- 5 years
- Bachelor of Science
- Research
- Health insurance
- Dental insurance
Quick Apply

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Sr. Thermodynamics Engineer

XNRGY Climate Systems -
Mesa, AZ

Quick Apply

Job Details

Full-time

Benefits

Health insurance
Dental insurance
401(k)
Paid time off
Employee assistance program
Vision insurance

Qualifications

Bachelor's degree in mechanical engineering
Fluid dynamics
Chilled water HVAC systems
Chiller
Research
Thermal hydraulics
Process simulation software
Manufacturing facility experience
Design engineering
Manufacturing
ASHRAE Standards
Manufacturing company experience
Mechanical knowledge

Full Job Description

Who are we?

XNRGY Climate Systems is a North American leader in sustainable design and advanced manufacturing of custom air treatment systems focused on research and energy development contributing to the reduction of carbon footprint. We are excited to announce the opening of our new Technology headquarters in Mesa, Arizona. This expansion reflects our commitment to growth and innovation in the climate solutions industry.

Sr. Thermodynamics Engineer

Why This Role Exists As XNRGY scales its chiller portfolio, we need a dedicated thermodynamics expert embedded in the NPD team to accelerate product development cycles, improve system efficiency, and ensure our chiller architectures meet the rigorous performance and reliability standards demanded by hyperscale operators.

Key Responsibilities

System Architecture & Design — Develop and optimize chiller system architectures using advanced thermodynamic principles, including vapor compression cycles, heat exchanger design, and refrigerant selection for low-GWP compliance
Modeling & Simulation — Build, validate, and continuously improve chiller performance models; execute thermodynamic cycle simulations across full operating envelopes including part-load and off-design conditions
Refrigerant & Hydraulic Systems — Design and specify refrigerant piping, hydraulic circuits, and associated structural components in compliance with ASHRAE, AHRI, and applicable safety standards
NPD Lifecycle Participation — Active contributor across the full new product development process: concept generation, feasibility analysis, prototype testing, performance validation, and production release
Testing & Validation — Define and execute calorimeter and field test protocols; analyze results and drive design iterations to meet performance targets
Cross-Functional Collaboration — Partner closely with controls engineers, manufacturing engineers, procurement, and product management to ensure designs are producible, cost-effective, and on schedule
Competitive Benchmarking — Monitor competitive chiller technology trends and emerging refrigerant regulations to inform roadmap decisions
Documentation — Produce engineering calculations, technical reports, and design documentation to support certification and customer submittals

Qualifications

Required

B.S. in Mechanical Engineering required; M.S. with thermodynamics or thermal-fluids concentration strongly preferred
5–8 years of progressive experience in HVAC or chiller system design and development
Deep expertise in vapor compression cycles, heat transfer, psychrometrics, and fluid mechanics
Hands-on experience with chiller modeling tools (e.g., REFPROP, Coolpack, or proprietary simulation platforms)
Working knowledge of low-GWP refrigerants (R-454B, R-32, R-1234ze, R-513A)
Familiarity with ASHRAE Standards (15, 34, 90.1) and AHRI performance certification requirements
Experience in an engineered-to-order or custom manufacturing environment

Preferred

Exposure to data center cooling applications, including free cooling, economizer modes, and liquid cooling (CDU, rear-door, immersion)
Knowledge of PUE optimization and hyperscaler thermal infrastructure requirements
PE license or active pursuit

Competencies

First-principles engineering thinker with strong analytical rigor
Comfortable operating in a fast-paced, hypergrowth environment with shifting priorities
Collaborative, hands-on, and solutions-oriented
Strong written and verbal communication — able to present technical content to non-technical stakeholders

Why choose XNRGY!

Competitive salary
Medical, dental, and vision insurance
401K
Employee Assistance Program
Paid time off
A dynamic team, open to change to bring its color
Modern state of the art facility with Industry 4.0 technology in Mesa, Arizona
Being part of a green industry transformation
Fast-growing dynamic environment where entrepreneurial spirit is recognized
Inclusive and diversity-friendly environment
Career advancement: XNRGY promotes internal promotion
Electric charging stations

At XNRGY Climate Systems, we are committed to fostering a diverse and inclusive workplace. We believe that a variety of backgrounds, experiences, and perspectives are essential to driving innovation and achieving success. We welcome individuals who share our passion for sustainability and who are eager to contribute to a more positive environmental future.

Are you ready to join our driven team? Join a company that Values Courage, Community, Climate, Customer and Coherence. Be part of carving our footprint and joining a winning team!

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sr. thermodynamics engineer jobs in coolidge, az

Sr. Thermodynamics Engineer

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