AI-Enabled Full-Stack Software Engineering Intern

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 As an AI-Enabled Full Stack Software Engineering Intern, you will work across frontend development, backend services, data modeling, testing, and documentation activities. This is an excellent opportunity to gain experience with modern software engineering, AI-assisted development workflows, and enterprise-scale application modernization projects.

Successful interns will have the potential opportunity of joining Lennox Full-Time upon graduation. Relocation and/or travel may be required for your position.

Why You’ll #Love Lennox:

• Impactful Projects: Work on meaningful assignments that drive real business results. Your ideas matter here.
• Intern Community: Connect with peers through social events, team-building activities, and engagement programs.
• Innovation Exposure: Dive into cutting-edge tech and trends shaping the HVAC and manufacturing industries.
• Learning and Development: Access workshops, training sessions, and resources to level up your skills and expand your knowledge.
• Competitive Pay and Relocation Support: Receive a competitive compensation package and relocation support if needed.

WHAT YOU'LL BE DOING:

Full Stack Application Development

• Design, build, and refine production-quality web application features under the guidance of experienced software engineers.
• Develop frontend components and user experiences using Angular, Type Script, HTML, and CSS.
• Build and enhance backend services using Java, Spring Boot, and REST APIs.
• Translate business requirements and user feedback into scalable software solutions.

AI-Enabled Software Delivery

• Support the development and validation of reusable AI skills, agents, scaffolding patterns, and iterative delivery workflows.
• Explore and improve AI-assisted development techniques to increase quality, speed, and repeatability.
• Assist in documenting and refining AI development practices for future project teams.
• Contribute to the creation of reusable playbooks, development standards, and delivery frameworks.

Application Modernization & Product Development

• Support modernization efforts for strategic enterprise applications, including the ADP Compass platform.
• Develop user-facing capabilities such as search functionality, configuration tools, optimization results, and comparison views.
• Assist in enhancing solution resiliency, performance, and maintainability.
• Participate in feature reviews, demonstrations, and sprint-based development activities.

Data & Domain Modeling

• Work with relational databases, data models, and application schemas.
• Support the creation and validation of data sets used for testing and solution verification.
• Assist in analyzing application outputs and ensuring alignment with business requirements.
• Collaborate with technical teams to improve data quality, performance, and reliability.

Quality Engineering & Continuous Improvement

• Create and execute unit, integration, and user interface tests.
• Develop test cases and support validation efforts to ensure software quality.
• Assist with debugging, troubleshooting, and defect resolution.
• Capture lessons learned and recommendations to improve future software delivery initiatives.

WHAT WE ARE LOOKING FOR:

• Currently pursuing a Master's degree in…