About the role#
This is an 11-week paid internship for Summer 2027. You will join our technical sales program to identify and propose solutions that preserve energy and water, minimize environmental footprints, and increase productivity for our customers. You will combine engineering principles with a consultative sales approach to build long-term relationships and provide strategic, hands-on problem solving. This role is full-time and offers a hybrid work environment, balancing time in the field with remote work.
What you'll do#
- Complete an independent project under your trainer's direction to yield calculated ROI.
- Participate in safety training and technical lessons on water treatment applications.
- Observe and assist with customer service to ensure accurate chemical application, process optimization, and documentation.
- Complete introductory training in our consultative sales approach.
- Visit multiple customer sites to learn best practices and unit applications, including boilers, cooling towers, closed loops, and filtration.
- Build relationships with internal departments and personnel.
- Provide routine service support to Sales Representatives.
What you'll need#
- Currently pursuing an undergraduate degree in Chemical, Mechanical, Environmental, or Industrial Engineering.
- Graduation date in December 2027 or Summer 2028.
- A valid US Driver’s License with an acceptable motor vehicle record.
- Access to a personal vehicle.
- Ability to lift, push, or carry up to 50 pounds chest high.
- Note: Immigration sponsorship is not available for this role.
Location & details#
- This internship is available in multiple locations across the United States, including Saint Louis, San Francisco, Salt Lake City, Gary, Cleveland, New York, Pascagoula, Vidalia, Phoenix, Boston, Houston, Seattle, Alvin, Toledo, Tucson, Goodyear, Atlanta, Las Vegas, and San Jose.
- The program begins on June 1, 2027.
- You must be willing to relocate within the United States if necessary.
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.



