Lennox International

Control Systems Technical Support Engineer, Sr.

Job Locations US-GA-Stone Mountain
Requisition #
Sales Support
Shift / Hours

Company Overview

Lennox International (LII) is a leading global provider of innovative climate control solutions for heating, ventilation, air conditioning, and refrigeration (HVACR) markets.

Beginning over a century ago, Lennox International has built a strong heritage of Innovation and Responsibility. Our position as an innovation leader continually inspires us to promote more efficient energy use and a healthier environment through our product operations. Our engaged and diverse workforce is committed to providing climate control solutions that provide the most value and comfort for our customers.

We are proud to have instilled a shared sense of responsibility and commitment among our approximately 10,000 employees located throughout North America, South America, Europe,and Asia. 


Heatcraft Worldwide Refrigeration is a long-standing leader in the world of commercial refrigeration, providing climate-control solutions to customers in more than 70 countries. Their state-of-the-art manufacturing facilities in the cities of Stone Mountain, Columbus and Tifton, Georgia, produce evaporators, condensers, compressor racks, merchandise display cases and other top-quality refrigeration products for their six market-leading brands: Bohn, Larkin, Climate Control, Chandler, and InterLink. Heatcraft products are primarily used to preserve food and other perishables in supermarkets, convenience stores, restaurants, warehouses and distribution centers, in addition to other applications such as data centers, pharmaceutical and industrial process cooling.

We are proud to have instilled a shared sense of responsibility and commitment among our approximately 10,000 employees located throughout North America, South America, and Europe.

Note: We do not accept resumes from headhunters, placement agencies, or other suppliers that have not signed a formal agreement with us.

Job Description

As the Sr. Control Systems Technical Support Engineer, you will provide post-sales HVAC/R control system support, which includes commissioning, installation, testing, maintenance and training services to Heatcraft customers, end-users and field sales both remotely and at jobsites.




  • Provide customers with technical support in the setup, configuring, troubleshooting and operating of Heatcraft control system products.
  • Provide customer-specific programming assistance and parameter settings for standard Heatcraft electronic control products and custom applications.
  • Provide training, as required, to the sales group and customers on the features, proper use, application and operation of Heatcraft electronic control system products.
  • Coordinate with various Heatcraft functional areas, as needed, in the resolution of electronic control field issues and the identification of their internal corrective actions.
  • Willing to travel up to 50% of work schedule. 




  • BS in Electrical Engineering or Computer Science strongly preferred.
  • 5- 7 years of professional experience working with HVAC control systems preferred.
  • Professional experience with the Refrigeration or HVAC systems and industry.
  • Familiar with industry standard protocols (Modbus, BACnet, LONtalk, etc.)
  • Familiar with embedded and serial communications (I2C, RS-485, RS-232, CAN)
  • Proficient in networking communications (TCP/IP).
  • Experience with Real Time Operating Systems (RTOS) and other Operating Systems such as Linux and Windows.
  • Familiar with industry standard embedded software design and debugging tools.
  • Proficiency in the principles and processes for providing customer service, including customer needs assessment, meeting quality standards for services and evaluation of customer satisfaction.
  • Expert knowledge in software programming, controls integration and communication protocols. Able to coordinate and direct the work of others both in-person and remotely.
  • A proven track record in control system technical support and training is required.  
  • Excellent written and oral communication skills and the ability to work with diverse functional groups are essential.



  • Outstanding 401(k) with company matching and 1-year bonus
  • Employee Stock Purchase Plan
  • Robust Employee Assistance Program
  • Community involvement opportunities

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