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.

WHAT YOU WILL BE DOING:

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 is committed to helping our people innovate our products and their careers.

We are seeking a high-impact, technically specialized HVAC Systems Engineering Specialist to join our team and focus on maximizing the availability and reliability of our HVACR systems. This role blends deep technical expertise with strategic systems thinking, emphasizing the interaction between embedded controls, component dynamics, and controlled space response.

You will provide collaborative leadership across engineering teams working together to define system-level requirements on select high-impact projects.

GENERAL DUTIES INCLUDE, BUT ARE NOT LIMITED TO:

System Oversight & Integration:

• Provide a system-level perspective to ensure cohesive integration and high reliability across HVACR systems.
• Apply Design for Reliability principles to embedded systems and load interactions to enhance system uptime and user experience.
• Collaborate with cross-functional teams—including Platform Engineering, Controls Architecture, and Advanced Technology—to define and deliver robust firmware and system-level requirements.
• Develop strategies to manage off-nominal conditions, including error states, limp-along modes, and self-recovery mechanisms.

Tools & Process Development:

• Establish tools and processes to support a growing Systems Engineering function, improving the quality and completeness of engineering requirements.
• Evaluate and enhance existing modeling tools (e.g., Sysim, building modeling, condenser fan modeling) to support better system design and requirement definition.
• Work with cross functional teams to develop true-to-life models to validate requirements.
• Lead the development of Model-Based Systems Engineering (MBSE) practices using system modeling languages, tools, and structured processes.

#LI-JM1

WHAT WE ARE LOOKING FOR:

Required:

• Bachelor’s degree in Mechanical Engineering, Electrical Engineering, Systems Engineering, or a related technical field.
• 5+ years of experience in HVACR or thermal/fluid systems.
• Strong understanding of system-level design, subsystem integration, and reliability principles.
• Proficiency in system modeling tools and techniques (e.g., Sysim, MBSE tools, building energy modeling).
• Experience working with cross-functional engineering teams (e.g., controls, mechanical, advanced technology).
• Excellent problem-solving, analytical, and communication skills.

Preferred:

• Master’s degree in Engineering or Systems Engineering.
• Experience with Model-Based Systems Engineering (MBSE) methodologies and tools (e.g., SysML).
• Familiarity with Design for Reliability (DfR) practices and tools.
• Knowledge of firmware development processes and embedded system interactions.
• Experience in developing engineering processes and tools from the ground up.
• Demonstrated expertise in controls engineering and mechanical systems integration.
• Strong background in simulation, modeling, and analysis of complex systems.
• Excellent cross-functional collaboration and communication skills.
• Background in control theory, embedded systems, and sensor integration.
• Proficiency with simulation tools (MATLAB/Simulink, Ansys, etc.).
• Experience with embedded controls development using agile methodologies.

WHAT WE OFFER:

At Lennox, our greatest assets are our employees, and we are committed to providing limitless opportunities for growth and development of all, largely promoting from within the organization. This position is ideal for anyone looking for a diverse working environment with long term growth possibilities. This role is based on-site and will be in the office Monday – Friday.

BENEFITS:

• Competitive base salary
• Excellent medical plans designed to support healthy lifestyles
• Mental and financial health programs
• Outstanding 401k with company matching
• Employee stock purchase program
• Community involvement opportunities
• Robust employee assistance program
• And much, much more!

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!