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.

EMPLOYER:         Lennox International Inc.

JOB TITLE:          Lead Application Developer

LOCATION:         2140 Lake Park Blvd, Richardson, TX 75080 (Hybrid role, may work from home)         

DUTIES:

• Lead the end-to-end architecture and design of enterprise-grade applications using .NET technologies.
• Define and enforce coding standards, architecture best practices, and DevOps pipelines.
• Provide technical direction, mentorship, and code review guidance to developers and junior team members.
• Drive modernization of legacy applications toward microservices, cloud-readiness, or clean architecture models.
• Design, develop, and maintain web and API-based applications using C#, ASP.NET Core, MVC, and Web API.
• Write optimized SQL Server code including stored procedures, views, triggers, and performance tuning.
• Implement responsive UI using HTML, CSS, JavaScript, and front-end libraries (React/Angular optional).
• Maintain and enhance SSRS reports and other reporting deliverables.
• Participate in Agile ceremonies and ensure timely and quality delivery of sprint goals.
• Collaborate with Product Owners, QA, DevOps, and stakeholders to ensure business alignment.
• Manage code branching strategies, CI/CD pipelines, and deployment automation.
• Ensure application performance, security, and scalability through proactive testing and monitoring.
• Troubleshoot complex application and database issues in production environments.
• Manage documentation of technical design, user guides, and support handovers.

REQUIREMENTS:  

• Bachelor’s or foreign equivalent degree in Computer Science, Electronics Engineering, Software Engineering, or a related field, and 6 years of progressive, post-baccalaureate experience in the job offered, or as a Software Developer, Programmer Analyst, Senior Software Engineer, Project Lead, or in a related/similar position.
• Experience therein to 6 years in the following:
  • Designing, developing, and supporting mobile and web-based applications, including background processes, reports, and SQL stored procedures;
  • .NET ecosystem, including C#, ASP.NET MVC, .NET Core, Web API, and Entity Framework; 
  • Developing front-end and back-end applications;
  • Maintaining database objects including Stored Procedures, Functions, Jobs in Microsoft SQL;
  • Developing or supporting mobile application, including iOS Native, and Xamarin;
  • Ensuring application responsiveness, developing security and data protection measures, and supporting future development initiatives;
  • Code reviews, debugging code, automating tasks through scripting, and designing and writing reports using SSRS; and
  • Collaborating with internal and external teams.

Hybrid role, ability to work from home

CONTACT:  Refer to Job # TIWP-W

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