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.

Innovate your career.

When you choose Lennox, you're getting the best.

When you work at Lennox, you’re among the best.

We are seeking a highly motivated and innovative Mechanical Engineer to join our Advanced Technology Group, focusing on the commercial HVAC segment. This role involves developing and validating next-generation HVACR technologies with a focus on energy efficiency, sustainability, manufacturability, and regulatory compliance.

The ideal candidate will be passionate about emerging technologies, system-level design, and solving complex thermal and mechanical challenges.

DUTIES INCLUDE, BUT ARE NOT LIMITED TO:

• Lead and support the mechanical design, analysis, and prototyping of advanced HVACR components and systems (e.g., compressors, heat exchangers, fans, enclosures).
• Collaborate with cross-functional teams (controls, electrical, materials, software) to develop integrated solutions.
• Conduct feasibility studies, concept development, and performance simulations (CFD, FEA, thermodynamic models).
• Evaluate new materials, design approaches, and processes to enhance product performance and manufacturability.
• Develop and execute test plans for lab validation and performance characterization.
• Participate in technical reviews, design for manufacturability (DFM), and risk assessment (FMEA).
• Work closely with external research institutions, suppliers, and internal stakeholders to drive innovation.
• Maintain awareness of industry trends, emerging technologies, and regulatory changes (e.g., low-GWP refrigerants, DOE standards).
• Document technical work through reports, specifications, and intellectual property (patents, invention disclosures).

#LI-JM1 #LI-onsite

Required:

• Bachelor’s degree in mechanical engineering.
• Experience with scientific programming (example: Python, VBA, EES, MATLAB, or C++).
• Familiarity with HVACR system architecture and components.
• Strong foundation in thermodynamics, heat transfer, and fluid mechanics.
• Hands-on experience with prototyping, lab testing, and data analysis.
• Ability to manage multiple projects in a fast-paced R&D environment.
• Effective communication and technical writing skills.

Preferred:

• Master’s or Ph.D. in mechanical engineering.
• Previous work experience in HVACR, thermal systems, or product development in a related industry.
• Knowledge of low-GWP refrigerants, decarbonization strategies, and energy codes.
• Patents or publications in relevant technical areas.

Compensation: This is a salaried exempt role. We are open to hiring at different levels for this position (ME I - ME IV) depending on experience and skillset resulting in a wide compensation range. The starting salary range for this role and market is between $75,000 - $145,000 annually. Factors that may affect starting salary include geography/market and the skills, education, experience, and other qualifications of the successful candidate. This position is also eligible for the BroadBase Incentive (BBI) program with a target payout of 2%. Employees in this role are not eligible for overtime.

Location and Schedule: This position is located in Carrollton, TX and will be in the office Monday through Friday. 

Benefits: Subject to applicable eligibility requirements, the following benefits are offered for this role: tuition reimbursement; medical, dental, and vision insurance; prescription drug coverage; 401(k) retirement plan; short-term disability insurance; 8 weeks paid birthing leave; 2 weeks paid bonding leave; life and long-term disability insurance.

Paid Time Off: Depending on date of hire, and subject to applicable eligibility requirements, new employees in this role also receive up to: 12 days paid time off, 2 paid well-being days, 1 paid volunteer day, 9 to 11 paid company holidays depending on the year, and 3 floating holidays per year. 

Our Culture: At Lennox, our Core Values of Integrity, Respect & Excellence are ingrained in the fabric of the organization. They define our culture – which is about how we do business and how we treat others. Lennox is not just a workplace; we are a global community that values each team member’s contributions. As an equal opportunity employer, we are committed to recruit, develop, and retain talented individuals from a wide range of backgrounds, ensuring that everyone has the opportunity to succeed and contribute to our continued growth and success. At Lennox, you’ll take pride in our brands, knowing you are part of something special. Come, stay, and grow with us! 

Disclaimers: The compensation and benefits information is accurate as of the date of this posting. Lennox reserves the right to modify this information at any time, with or without notice, subject to applicable law.