Software Systems Validation Engineer II

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.

What Drives Success

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.

Lennox is seeking a motivated early-career Software Systems Validation Engineer to support the validation of embedded controllers used in innovative commercial HVAC solutions. This role is ideal for an engineer with approximately 2 years of experience in embedded systems testing, software validation, or systems engineering who is looking to grow within a collaborative product development environment.

As part of the validation team, you will help ensure the quality, reliability, and performance of embedded HVAC controller systems by supporting testing activities across hardware, firmware, and communication interfaces. The ideal candidate is hands-on, detail-oriented, eager to learn, and comfortable working in a fast-paced engineering environment.

DUTIES INCLUDE, BUT ARE NOT LIMITED TO:

* Assist in developing and executing validation plans for embedded HVAC controller systems.

* Create and maintain test documentation, including:

* Test plans and test procedures

* Manual and automated test cases

* Test execution records and defect reports

* Validation summary reports

* Execute functional, integration, and regression testing activities throughout the Software Testing Life Cycle (STLC).

* Support troubleshooting and debugging of hardware/software interactions using lab equipment such as oscilloscopes, logic analyzers, and protocol analyzers.

* Work closely with software engineers, hardware engineers, and systems teams to identify issues and verify fixes.

* Help develop and maintain automated test scripts and validation tools to improve test efficiency and coverage.

* Document software and system defects clearly and collaborate with development teams on resolution efforts.

* Participate in continuous improvement initiatives related to testing processes, automation, and product quality.

* Support project timelines by completing assigned validation activities on schedule.

#LI-JM1 #LI-onsite

What We Are Looking For

Education:

* Bachelor's degree in Electronics Engineering, Computer Engineering, Computer Science, or related technical field. MS is preferred

Experience:

* 2+ years of experience in software validation, embedded systems testing, or related engineering roles.

* Understanding of embedded systems, microcontrollers, firmware, and real-time operating systems (RTOS).

* Exposure to programming languages such as C, C++, C#, or Python.

* Familiarity with debugging hardware/software interfaces.

* Exposure to scripting or automation tools such as Python.

* Familiarity with communication protocols such as UART, I2C, SPI, CAN, or BLE.

* Strong analytical and problem-solving skills with attention to detail.

Preferred:

* Experience working with test management or defect tracking tools such as Azure Dev Ops or Jira.

* Familiarity with version control systems such as Git.

* Internship, co-op, or professional experience in HVAC, automotive, industrial controls, consumer electronics, or other embedded systems industries.

Soft Skills/Working Style:

* Eager to learn and develop technical expertise in embedded systems validation.

* Strong collaboration and communication skills.

* Able to manage multiple assignments in a fast-paced environment.

* Self-motivated with a proactive approach to problem solving.

* Adaptable and willing to support changing project priorities and timelines.

* Detail-oriented with a focus on product quality and continuous improvement.

What We Offer

Compensation:
This is a salaried exempt role. The starting salary range for this role and market is between $90,000 - $101,000 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 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 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,…