Senior Software Engineer - Hardware

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.

Job Description

This engineer researches, designs, develops and tests computer systems and components. The person in this position may also assign work to drafters and technicians.

• Design, develop, and test electrical systems, components, and equipment for control applications.
• Develop control strategies for HVAC systems including chillers, air handlers, and VAVs.
• Design and layout PCBs based on electrical schematics and mechanical constraints.
• Perform signal integrity analysis, EMI/EMC mitigation, and power distribution network design.
• Collaborate with electrical, mechanical, firmware, and software teams for seamless integration.
• Design and develop control hardware systems including PCBs, wiring harnesses, and enclosures.
• Select and integrate components such as sensors, actuators, relays, PLCs, and microcontrollers.
• Evaluate test reports and system data to troubleshoot and optimize performance.
• Make quick, data-driven decisions to resolve hardware challenges and improve reliability.
• Support prototyping, testing, and validation of control systems in lab and field environments.
• Work with industrial communication protocols such as Modbus, CAN, and Ethernet/IP.

Qualifications

Requires a bachelor's degree in engineering. Requires at least 1 year related experience.

• Ability to independently manage project tasks and responsibilities.
• Eagerness to learn and develop new competencies.
• Experience with Python, MATLAB, or C++ is a plus.
• Proficiency in MS Office tools (Word, Excel, PowerPoint).
• Excellent communication skills and curiosity about HVAC technologies, alternative refrigerants, and energy systems.
• Well-organized, self-motivated, and a collaborative team player.