Job Description

Company Profile:

Lennox (NYSE: LII)

Driven by 130 years of legacy, HVAC and refrigeration success, Lennox provides our residential and commercial customers with industry-leading climate-control solutions. At Lennox, we win as a team, aiming for excellence and delivering innovative, sustainable products and services. Our culture guides us and creates a workplace where all employees feel heard and welcomed. Lennox is a global community that values each team member's contributions and offers a supportive environment for career development. Come, stay, and grow with us.
:

This engineer designs, fabricates, modifies and evaluates complex mechanical and electro-mechanical
components, sub-systems and systems. The person in this position may also provide work leadership for lower level employees.

Duties include, but are not limited to:

Lead the design and development of advanced refrigeration and HVAC systems for data centers. Provide technical leadership in the application of

CO? transcritical systems

for sustainable and efficient cooling. Perform thermal load calculations, equipment sizing, and system layout planning. Collaborate with electrical engineers, manufacturing engineers and field service engineers to ensure integrated and optimized cooling solutions. Conduct feasibility studies, energy modeling, and performance simulations. Oversee installation, commissioning, and troubleshooting of refrigeration systems. Ensure compliance with industry standards, safety regulations, and environmental guidelines. Prepare detailed technical documentation, specifications, and reports.



Qualifications:

Requires a bachelor's degree in engineering. Requires at least 5 years related experience.

Bachelor's or Master's degree in Mechanical Engineering, HVAC Engineering, or a related field.

7-9 years of experience

in refrigeration or HVAC system design, with a focus on

data center cooling

. In-depth knowledge of

data center thermal management

, including CRAC/CRAH units, liquid cooling, and airflow management. Hands-on experience with

CO? transcritical refrigeration systems

and natural refrigerants. Strong understanding of thermodynamics, fluid mechanics, and heat transfer. Familiarity with relevant codes and standards (ASHRAE, ISO, IEC, etc.). Proficiency in design and simulation tools (e.g., AutoCAD, Revit, Pack Calculation Pro, Cycle_DX, VTB, or HVAC-specific software). Experience with energy efficiency optimization and sustainability initiatives. Knowledge of control systems and building automation for HVAC. * Experience working in mission-critical environments or hyperscale data centers.