Research and Development Engineering Intern

Own your future as an intern at Ecolab!Our internship program provides you with invaluable insights from leaders across Ecolab, engaging and challenging projects, opportunities for personal and professional growth, extensive networking, and the chance to immerse yourself in our innovative and dynamic environment.

Ecolab is seeking Research, Development & Engineering Interns to join our summer 2026 Internship program. Engineering interns in RDE support all business units of a globally diversified technology/service company, creating a dynamic, challenging, and varying work environment. This position will entail a variety of Chemical, Mechanical, or Electrical engineering work with a focus on either new product/application development or process engineering. As an RDE intern, you will participate in and support all stages of product development and application commercialization, from initial product idea generation and brainstorming to the final manufacturing process and post-launch support.

What's in it For You:

• The opportunity to take on some of the world's most meaningful challenges, helping customers achieve clean water, safe food and healthy environments

• The ability to make an impact and shape your career with a company that is passionate about growth

• The support of an organization that believes it is vital to include and engage diverse people, perspectives and ideas to achieve our best

• Applywhat you learn in the classroom to meaningful projects that havegenuine businessimpact

• Finish your internship with a realistic job preview of what a "day in the life" of an Ecolab associate looks like

• Be considered for a full-time job offer (to start upon graduation) at the end of a successful internship.

What You Will Do:

• Perform research, design, and test, for product improvement and development of new and launched products, chemical dispensing systems, and/or control systems

• Test, evaluate, and analyze formulations and/or systems to determine or prove performance and reliability

• Identify and evaluate technologies to advance the performance and reliability of existing and new products

• Ensure compliance with design criteria and standards

• Chemical Engineers: Design experiments to understand the dynamics of chemical processes and formulations

• Mechanical Engineers: Participate in the design and development of new chemical dispensers and control systems

• Electrical Engineers: Participate in the design and development of new embedded circuit board designs

• Software Engineers: Participate in digital transformation of processes by creating custom applications or integrating new technologies; and ensure the reliability and security of software systems deployed in real-world industrial environments

Position Details:

• 11-week paid internship program, starting on Monday, June 1, 2026

• Positions are located in Eagan, MN or Naperville, IL

• Relocation assistance may be available

• Opportunity for a hybrid work environment, balancing office days with working remotely

Minimum Qualifications:

• Pursuing a bachelor's degree in Chemical Engineering, Mechanical Engineering, Software Engineering, or Electrical Engineering with an anticipated graduation date of December 2026 or May/June 2027

• Immigration sponsorship not available for this role

• 11-week internship program, starting on Monday, June 1, 2026

Preferred Qualifications:

• Demonstrated project leadership skills

• Excellent analytical and problem-solving skills

• Effective oral communication skills, organizational skills, and attention to detail

• Experience developing test procedures and methods, and execution of tests

• Ability to work both independently and as a team member

• Sound academic training

About Ecolab

A trusted partner at nearly three million customer locations spanning over 170 countries, Ecolab is the global leader in water, hygiene and infection prevention solutions and services. Our team delivers comprehensive solutions, data-driven insights and personalized service to advance food safety, maintain clean and safe environments, optimize water and energy use and improve operational efficiencies and sustainability for customers in the food, healthcare, hospitality and industrial markets.

When you come to work at Ecolab, you get to take on some of the world's most meaningful challenges and have the opportunity to learn and grow, shape your career, make an impact and quickly see the importance of your work.