Intern Mern Stack Developer Jobs in Milwaukee, WI

Johnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education.

For more than 140 years, Johnson Controls has delivered performance where it really matters. Backed by advanced technology, lifecycleservicesand an industry-leading field organization, we elevate customer performance, turn goals into real-worldresultsand help move society forward.

What you will do:

Johnson Controls is seeking a motivated Mechanical Engineering Intern to join our Product Development team in Glendale, WI. This internship offers hands-on experience supporting the design, development, and testing of innovative electromechanical products, including valves, actuators, thermostats, and building automation components. You will work alongside experienced engineers toassistin prototyping, testing, and design activities that contribute to new product development and sustaining engineering efforts.

How you will do it:

Under the guidance of senior engineers, you will:

• Assistin mechanical design and development of electromechanical products such as actuators, valves, and gear-driven systems.

• Support prototype builds using 3D printing and rapid prototyping techniques.

• Create and update 3D CAD models and drawings using Creo or similar tools.

• Help perform basic FEA analysis and interpret results under supervision.

• Participate in design reviews, tolerance stack-ups, and documentation activities.

• Aid in laboratory testing and validation of components and assemblies.

• Assist with VAVE projects, product enhancements, and sustaining engineering tasks.

• Prepare technical reports,maintainlab equipment, and organize test setups.

What we look for:

Required Qualifications

• Currently enrolled in abachelor'sprogram in Mechanical Engineering (junior or senior level preferred).

• CAD experience with 3D modeling (Creo preferred).

• Strong problem-solving skills and willingness to learn advanced tools and methods.

• Ability to work full-time during summer; part-time during school year.

• Must be local to Milwaukee / Glendale, WI, or commutable distance.

• U.S. citizen or legal right to work in the U.S.

Preferred Qualifications

• Experience with 3D printing and prototyping

• Familiarity with sensor integration, embedded control systems, or electromechanical design.