Principal IoT 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.

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.

This position calls for an experienced, knowledgeable, and talented Principal engineer to design and develop software components for the Controls Engineering organization. As a software design engineer, you will have an opportunity to lead and collaborate with other engineers to design, plan, develop, and maintain software components for Internet of Things devices and Cloud.

DUTIES INCLUDE BUT ARE NOT LIMITED TO:

• Responsible for the successful implementation and delivery of software products and components throughout the entire product lifecycle.
• Responsible for project deliverables on time and with high quality.
• Assure proper technical requirement definition with internal and external customers, marketing, manufacturing, and other support groups.
• Actively participate in the definition and implementation of new processes and improvements.
• Identify and create new technologies and ideas to increase the organization’s intellectual property and to better address customer needs.
• Participate in technical feasibility analysis and prototyping activities.

#LI-JM1 #LI-onsite

What We Are Looking For

Education Requirements:

• BS in Computer Engineering/Computer Science is required.
• MS in Computer Engineering/Computer Science is preferred.

Technical Skills:

• 15+ years of professional experience in software development, with a focus on IoT and embedded systems.
• Proficiency in C++ programming developing distributed, real-time applications.
• Experience with OpenDDS or another Data Distribution Service middleware is a plus.
• 3+ years of experience with multithreaded application development and debugging.
• Strong Linux Ubuntu 22.x or 24.x skills with creating and maintaining system services and navigating system using Bash.
• 3+ years of experience with socket level TCP and UDP development in and debugging using C/C++ modern tools.
• Strong still monitoring and managing Linux services and troubleshooting service failures with gdb, coredumps, trace files, and log files.
• Strong skills with git and gitlab.
• Experience with Visual Code, Visual Studio with WSL.
• Experience with Jet Brains CLION is a plus.
• Remote debugging skills using gdb and gdb server a plus.
• Solid experience using Microsoft Azure with emphasis on the following areas:
• Virtual Machine Scale Sets.
• Monitoring Reports.
• Strong skills in using Syslog and Azure Metrics reporting.
• Azure DevOps Boards, Backlogs, Sprints, and Plans.
• Ability to understand an Azure DevOps pipeline and the concepts it holds.
• Network Load Balancing.
• Network VM maintenance planning and monitoring.
• VMSS Experience with multiregional and zones is a plus.
• Strong experience with Networking protocols including TCP, UDP, ARP, IGMP, and ability to monitor and debug on a live system.
• Strong experience using ssh protocols to access and manage systems in the cloud.
• Strong bash shell authoring and maintenance.
• Strong understanding of IoT architectures, protocols, and standards such as MQTT, CoAP, etc.
• Experience with edge computing platforms and cloud-based IoT services (e.g., AWS IoT, Azure IoT Hub) is desirable.
• Experience with at least one other high-level language, such as Java or C#.
• Experience with at least one scripting language, such as Python or Node.js.
• Experience developing and deploying cloud applications using Azure or another cloud platform.
• Strong understanding of software design principles and best practices.
• Ability to develop unit test driven software components.
• Experience with Configuration Management tools (Version control, bug tracking, change management, automated builds, and coding standards).

Teaming/Soft Skills:

• Excellent verbal and written communication skills.
• Ability to effectively communicate with both technical and non-technical staff.
• Ability to collaborate across multiple functional teams (Systems Architecture, Embedded, Mobile Apps, IT, Hardware, Testing, Technical Support) to deliver sound technical solutions to our customers.
• Demonstrate ability to drive product and process improvements throughout the software organization.
• Ability to work with third parties and offshore development teams as needed.
• Self-driven, results oriented.

What We Offer

Compensation: This is a salaried exempt role. The starting salary range for this role and market is between $150,000 - $175,000 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 Short Term Incentive (STI) bonus program with a target payout of 10%. Employees in this role are not eligible for overtime.

Location and Schedule: This position is located in Richardson, 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, 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. 

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! 

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.