Mechanical Engineering Intern

Lennox; Carrollton (TX); On-site; USD 30,000 - 34,000; Full time

Benefits offered by this job

Relocation support

Competitive pay

Overtime eligibility

Job summary

Lennox, a global HVAC leader, is seeking a Mechanical Engineering Intern to work with experienced engineers on test methods, data analysis, and product development. You will gain hands-on experience in testing HVAC components, Python scripting, and data-driven decision making.

Relocation support may be provided. Successful interns may have the opportunity to join Lennox full-time after graduation; this is an onsite role with potential travel assignments.

Qualifications

• Currently pursuing a Bachelor's or Master's degree in Mechanical Engineering.
• Knowledge of thermodynamics and heat transfer principles.
• Experience with Python programming and data analysis.
• Strong analytical and problem‑solving skills.
• Ability to interpret technical data and draw meaningful conclusions.
• Strong attention to detail and organizational skills.
• Effective written and verbal communication skills.
• Ability to work independently and collaboratively within a team environment.

Responsibilities

• Assist in developing and setting up tests to evaluate the performance of HVAC components, including motors and compressors.
• Support product qualification and validation activities through hands‑on testing and data collection.
• Document test procedures, results, and findings to support engineering decisions.
• Help identify opportunities to improve product performance and reliability.
• Analyze engineering test data to identify trends, performance issues, and improvement opportunities.
• Develop Python-based tools and scripts to automate data analysis and reporting.
• Create visualizations and summaries that help engineers make data‑driven decisions.
• Support modeling and analysis activities related to product performance.
• Assist in identifying and evaluating cost reduction opportunities for products and components.
• Participate in cross‑functional teams on product development and sustaining projects.

Skills

Thermodynamics & heat transfer

Python programming

Data analysis

Analytical thinking

Microsoft Office

Education

Bachelor's or Master's in Mechanical Engineering

Job description

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 a Mechanical Engineering Intern, you will work closely with experienced engineers to develop test methods, analyze performance data, and support product development efforts. This is an excellent opportunity to apply engineering coursework in a collaborative, fast-paced environment while gaining valuable industry experience. 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 #LoveLennox:

• 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:

Product Testing & Validation

• Assist in developing and setting up tests to evaluate the performance and reliability of new HVAC components, including motors, compressors, and other mechanical systems.
• Support product qualification and validation activities through hands‑on testing and data collection.
• Document test procedures, results, and findings to support engineering decisions.
• Help identify opportunities to improve product performance and reliability.

Data Analysis & Engineering Tools

• Analyze engineering test data to identify trends, performance issues, and improvement opportunities.
• Develop Python-based tools and scripts to automate data analysis and reporting.
• Create visualizations and summaries that help engineers make data‑driven decisions.
• Support modeling and analysis activities related to product performance.

Cost & Product Improvement Initiatives

• Assist in identifying and evaluating cost reduction opportunities for products and components.
• Support engineering studies focused on improving product quality, efficiency, and manufacturability.
• Participate in brainstorming and problem‑solving activities to drive continuous improvement.

Team & Project Support

• Collaborate with engineering teams on product development and sustaining projects.
• Assist with research, testing, and technical investigations.
• Participate in project meetings and provide updates on assigned tasks.
• Take on special projects that provide exposure to multiple areas of engineering.

WHAT WE ARE LOOKING FOR:

• Currently pursuing a Bachelor's or Master's degree in Mechanical Engineering
• Knowledge of thermodynamics and heat transfer principles
• Experience with Python programming and data analysis
• Strong analytical and problem‑solving skills
• Ability to interpret technical data and draw meaningful conclusions
• Strong attention to detail and organizational skills
• Effective written and verbal communication skills
• Ability to work independently and collaboratively within a team environment

Preferred Qualifications

• Experience analyzing large datasets and developing engineering tools
• Familiarity with HVAC systems or mechanical product development
• Exposure to laboratory testing and data acquisition systems
• Understanding of reliability, performance testing, or product validation methodologies

WHAT YOU'LL GAIN:

• Hands‑on experience developing and executing engineering test plans
• Exposure to HVAC product development, validation, and reliability engineering
• Opportunities to apply Python programming to real‑world engineering challenges
• Experience working with cross‑functional engineering teams
• Development of technical, analytical, and problem‑solving skills in a manufacturing and product development environment
• Insight into how engineering decisions drive product performance, quality, and cost optimization

What We Are Looking For

Requires a high school diploma or an equivalent combination of education and experience. Entry Level. Developing professional knowledge in the area of expertise. Solid written and verbal communication skills. Proficient in Microsoft Office.

What We Offer

Compensation:

This is an hourly non‑exempt role. The starting pay range for this role and market is between $22.50 – $25.00/hour. This rate is based on the intern's current year in their respective university programs. Graduate students may receive a higher rate of pay based on their year in school. Employees in this role are also eligible to earn overtime when they work more than 40 hours in a week (or as otherwise required by state law).

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.

We may use automated tools, including artificial intelligence, to support parts of our hiring process, such as application review and interview scheduling. These tools assist our teams but do not replace human decision-making. If you need an accommodation or have questions, please contact [e-mail].