Own your future as an intern at Ecolab!â¯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 Applyâ¯what you learn in the classroom to meaningful projects that haveâ¯genuine businessâ¯impact 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.