Engineering Technical Sales Intern

Ecolab•Saint Louis, MO

1d•Hybrid

About The Position

Ecolab is seeking Engineering Technical Sales Interns for its summer 2027 technical sales internship program. Interns help identify and propose solutions that preserve energy and water, reduce customers’ environmental footprints, and increase productivity. The role combines engineering practices with consultative sales, account leadership, and strategic account retention. Interns learn to build long-term customer relationships by understanding business drivers, solving problems hands-on, and offering digital technology solutions. The 11-week paid internship includes safety and technical training, customer-site field experience, service support, and an independent project under the direction of a primary trainer. Interns work across regional sales districts and customer locations, gaining technical knowledge and sales experience while supporting customers’ sustainability goals. The position may offer a hybrid work environment, with field days and remote work. Nationwide locations are available, and candidates must be willing to relocate within the United States. Relocation assistance may be available. Successful interns may be considered for a full-time Associate District Representative role after the internship, to begin upon graduation.

Requirements

Pursuing an undergraduate degree in Engineering, such as Chemical, Mechanical, Environmental, or Industrial Engineering.
Expected graduation in December 2027 or Summer 2028.
Valid U.S. driver’s license, an acceptable motor vehicle record, and access to a personal vehicle.
Able to lift, push, or carry up to 50 pounds at chest height.
Willing to relocate within the United States.

Nice To Haves

Not specified.

Responsibilities

Complete independent project(s) under a primary trainer’s direction to yield calculated ROI.
Complete safety training and technical lessons introducing water treatment applications.
Observe and participate in customer service to support accurate chemical application, process optimization, and documentation.
Complete introductory training in the consultative sales approach.
Visit multiple customer sites across the region to learn best practices, unit applications, and treatment approaches.
Build relationships and interact with departments and personnel important to success in the field.
Work within regional sales districts and customer locations to build technical knowledge and sales experience while helping customers achieve sustainability goals.
Provide routine service support to Sales Representatives.
May be subject to testing that includes boilers, cooling towers, closed loops, R.O., and filtration.

Benefits

Paid 11-week internship.
Relocation assistance may be available.
Potential consideration for a full-time job offer as an Associate District Representative after a successful internship.
Medical, dental, vision, and life insurance.
Accident, critical illness, and hospital indemnity insurance.
Auto, home, and pet insurance.
Identity theft protection.
Short-term and long-term disability.
401(k), pension plans, and retirement health care benefits.
Short-term incentives.
Vacation (12 days) and holidays.
Parental leave.
Employee stock purchase plans for full-time associates.
Discount on day care and caregiver services.
Adoption assistance.
Group legal services.
Employee assistance program and employee discount program.
Education assistance program.
On-site childcare and fitness facilities may be available at select locations.