CO₂ Refrigeration System Engineer

Who We Are

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.

As a leading innovator of home and commercial, heating, cooling, refrigeration, air‑quality, and related services, Lennox International is committed to helping our people innovate our products and their careers.

We are seeking a motivated and skilled CO₂ Refrigeration System Engineer to join our team. The ideal candidate will have hands‑on experience with CO₂ transcritical refrigeration systems and a strong ability to design, analyze, and optimize system performance. This role requires collaboration with cross‑functional teams and a proactive attitude toward learning and innovation.

• Design, analyze, and optimize CO₂ transcritical refrigeration systems.
• Perform component selection for CO₂ refrigeration systems based on system requirements.
• Conduct system calculations, simulations, and performance analyses.
• Collaborate effectively with cross‑functional teams including R&D, manufacturing, sales and product management.
• Continuously explore and adopt advanced technologies to improve system efficiency and performance.

• Master’s degree or above in Mechanical Engineering, Refrigeration, or related field.
• Minimum of 3 years of hands‑on experience with CO₂ refrigeration systems.
• Strong understanding of CO₂ transcritical system design, operation, and optimization.
• Proficient in system calculations, performance analysis, and component selection.
• Excellent communication skills and ability to work effectively with diverse teams.
• Curiosity, proactive learning attitude, and willingness to innovate.

• Experience with simulation tools and modeling software for refrigeration systems.
• Knowledge of energy efficiency optimization and sustainable cooling technologies.

Compensation
:
This is a salaried exempt role. The starting salary range for this role and market is between $97,000-$127,050 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 Broad Base 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 Stone Mountain, GA 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.

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 recruiting, developing, and retaining 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.