About the role#
This is an 11-week paid internship program for Summer 2027. You will support various business units within our research, development, and engineering teams. The role focuses on new product development, application commercialization, and process engineering. You will gain experience across the full product lifecycle, from initial concept to manufacturing and post-launch support.
What you'll do#
- Perform research, design, and testing for product improvements and new product launches, including chemical dispensing and control systems.
- Test, evaluate, and analyze formulations or systems to determine performance and reliability.
- Identify and evaluate new technologies to improve existing and future products.
- Execute technical laboratory activities to support platform development.
- Support all stages of product development and application commercialization.
What you'll need#
- Currently pursuing a Bachelor’s degree in Chemical Engineering, Mechanical Engineering, Electrical Engineering, or Chemistry.
- An anticipated graduation date of December 2027 or May/June 2028.
- Experience developing test procedures and methods, along with the execution of those tests.
- Ability to work effectively both independently and as part of a team.
Location & details#
- Locations: Eagan, Minnesota and Naperville, Illinois.
- Term: 11 weeks, starting June 1, 2027.
- Modality: Hybrid work environment.
- Employment type: Full-time.
- Note: Immigration sponsorship is not available for this role.
About Ecolab
Ecolab provides water, hygiene, and infection prevention services to sectors like healthcare, food, and industrial manufacturing. The company operates in more than 170 countries to help clients manage resources and maintain clean environments. It is a public company based in St. Paul, Minnesota. The organization employs over 10,000 people.
How to get in at Ecolab
Applying early at Ecolab gives you a clear advantage because recruiters review applications as they arrive. Intern Insider sends an instant alert the moment a role matching your target is published, so you can apply among the first before the pile grows. Being at the top of the list helps you get seen. You can also improve your response rates by reaching out to the right people. Intern Insider surfaces the recruiters behind the company roles so you can contact them directly to ask about the position or a referral. This direct approach often works better than sending your resume into a general queue.



