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Salary
≈ $33k – $50k per year (Estimated)
Location
In office (Leiden)
Seniority
Intern
Employment
Internship

Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Oct 16, 2026. Ecolab scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Ecolab is a water, hygiene and infection prevention company headquartered in Saint Paul, Minnesota, supplying cleaning and sanitation chemicals, water treatment programs, food safety services and pest elimination to restaurants, hotels, hospitals, food and beverage plants and heavy industry. Founded in 1923, it is a Fortune 500 company that serves customers at more than 100,000 sites worldwide and owns Nalco Water, its industrial water treatment business. Openings cover sales and territory managers, field service representatives, food safety specialists, lab and manufacturing staff, logistics associates, finance analysts and data and AI engineers.

Internship (Minimum 6 Months)

Want to build a brighter, bolder future and kick-start your career? Join Ecolab and help create a world in which we all thrive.

Ecolab is seeking a motivated and enthusiasticIntern to join our team for a minimum period of 6 months. This internship offers a unique opportunity to gain hands-on experience in an international business environment while contributing to meaningful projects that support our customers and employees.

As an Intern, you will work closely with experienced professionals, develop valuable business skills, and gain exposure to a dynamic and collaborative workplace.

How You'll Make an Impact

  • Support day-to-day business operations and ongoing projects
  • Assist with administrative and coordination activities
  • Conduct research, analyze information, and prepare reports, for example, on how the team can better leverage technology to increase efficiency and optimize processes, including defining and documenting processes and establishing mechanisms to keep them up to date.
  • Collaborate with colleagues across different departments and countries
  • Support internal communication and process improvement initiatives
  • Participate in meetings and contribute ideas to improve business performance
  • Maintain accurate records and documentation
  • Provide support to team members on various operational activities

What's Unique About this internship

  • Gain practical experience within a global organization
  • Work on meaningful projects that contribute to business success
  • Learn from experienced professionals and industry experts
  • Develop both technical and professional skills

Minimum Qualifications

  • Currently enrolled in a Bachelor's or Master's degree program
  • Available for a minimum internship period of 6 months
  • Strong proficiency in English
  • Fluency in Dutch, German, or French
  • Good knowledge of Microsoft Office applications (Word, Excel, PowerPoint, Outlook)
  • Strong organizational and communication skills
  • Ability to work independently as well as part of a team
  • Strong analytical and problem-solving skills
  • Ability to manage multiple priorities and meet deadlines
  • Proactive attitude and eagerness to learn

What's in It for You

  • Hands-on experience in a global and market-leading organization
  • Meaningful work that supports customers in achieving clean water, safe food, and healthy environments
  • Exposure to international teams and business processes
  • Coaching and mentorship from experienced professionals
  • A collaborative and inclusive culture where diverse perspectives are valued

About Ecolab:

At Ecolab, we prioritize our talent-first philosophy by creating the most capable and diverse team to excel at our nearly three million customer sites. Building on a century of innovation, our 48,000 associates help deliver comprehensive science-based solutions, data-driven insights and world-class service to advance food safety, maintain clean and safe environments, and optimize water and energy use, and improve operational efficiencies and sustainability for customers in the food, healthcare, life sciences, hospitality and industrial markets in more than 170 countries around the world. Our solutions not only enhance operational efficiency but also contribute to sustainability and public health, making a positive impact on the world. We are committed to eliminating unnecessary complexities and embracing a beginner's mindset, continuously seeking new perspectives and innovative solutions to stay ahead in a rapidly changing world.

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