Field Service Technician (Naperville)

Ecolab
Naperville, IL

Want to build a brighter, bolder future and cultivate your career? Join Ecolab’s team and help create a world in which we all thrive.

Nalco Water, an Ecolab company, helps customers conserve more than 161 billion gallons of water annually. We serve industries from food & beverage to mining and manufacturing, delivering innovative solutions that reduce, reuse, and recycle water while protecting systems and equipment. Our team combines deep technical expertise with smart technology to drive efficiency, sustainability, and performance.

Ecolab is seeking a Field Service Technician II – Install where your hands-on skills and customer-first mindset will help shape a more sustainable future. You’ll be part of a purpose-driven team that supports water treatment and disinfection systems across a variety of industries. You’ll work independently in the field, building trusted relationships with customers and delivering solutions that protect vital resources and improve operational performance.

How You’ll Make an Impact :

  • Deliver expert service and support for cooling tower cleaning and water disinfection

  • Provide technical support and escalate complex challenges as needed

  • Build strong relationships with customers and promote best practices

  • Ensure full compliance with safety policies and procedures

  • Execute required chemistry tests, log and report data, and maintain product inventories at customer accounts

  • Provide routine service support to Sales Representatives in strategic district accounts to execute agreed upon customer system assurance plans

  • Provide technical support to customers; identifying and resolving customer pain points, escalating as required

  • Install, calibrate, and maintain chemical feed equipment and process monitoring equipment at customer accounts

Position Details:

  • This position will be based in Decatur, IL

  • The territory for this position covers a 60 mile radius

  • Targeted accounts are within the manufacturing industries

  • Up to 5% overnight travel

  • Shift: Monday - Friday 7am - 3pm (may include occasional nights and weekends)

What’s Unique About This Role:

  • You’ll work in a dynamic, hands-on environment with autonomy and support

  • You’ll help customers meet sustainability goals while protecting their critical assets

  • You’ll gain access to industry-leading training and development programs

Minimum Qualifications:

  • High school diploma or equivalent

  • 2 years of experience in water treatment or an industrial/mechanical environment

  • Position requires a current and valid Driver’s License with no restrictions

  • No immigration sponsorship available for this position

Physical Requirements of Position:

  • Lifting up to 50 pounds

  • Exposure to hot, cold, noisy, or dirty environments

  • Stooping, kneeling, crouching, reaching, balancing, walking, standing, climbing

Ecolab is committed to providing reasonable accommodation to qualified individuals with a disability.

Preferred Qualifications:

  • Associate’s degree or trade school certification

  • Demonstrated mechanical aptitude

  • Experience in water treatment or specialty chemical industry

  • Familiarity with boilers, cooling towers, and wastewater treatment systems

  • Proficiency with Microsoft Office Suite

What’s in it For You:

  • Starting on Day 1 : Access to our comprehensive benefits package including medical, dental, vision, matching 401K, company-paid pension, stock purchase plan, paid parental leave, select discounted childcare resources, and more!

  • 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.

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.

Annual or Hourly Compensation Range

The pay range for this position is $46,300 - $69,500. Many factors are taken into consideration when determining compensation, such as experience, education, training, geography, etc. We comply with all minimum wage and overtime laws.

Benefits

Ecolab strives to provide comprehensive and market-competitive benefits to meet the needs of our associates and their families. to see our benefits.

If you are viewing this posting on a site other than our Ecolab Career website, view our benefits at jobs.ecolab.com/working-here.

Potential Customer Requirements Notice

To meet customer requirements and comply with local or state regulations, applicants for certain customer-facing roles may need to:

- Undergo additional background screens and/or drug/alcohol testing for customer credentialing.

- Be fully vaccinated for COVID-19, including a booster if eligible, unless a religious or medical accommodation is requested by the applicant and approved by Ecolab.

Americans with Disabilities Act (ADA)

Ecolab will provide reasonable accommodation (such as a qualified sign language interpreter or other personal assistance ) with our application process upon request as required to comply with applicable laws. If you have a disability and require accommodation assistance in this application process, please visit the Recruiting Support link in the footer of each page of our career website.

Our Commitment to a Culture of Inclusion & Belonging
At Ecolab, we believe the best teams are inclusive. We are on a journey to create a workplace where every associate can grow and achieve their best. We are committed to fair and equal treatment of associates and applicants and recruit, hire, promote, transfer and provide opportunities for advancement based on individual qualifications and job performance. In all matters affecting employment, compensation, benefits, working conditions, and opportunities for advancement, we will not discriminate against any associate or applicant for employment because of race, religion, color, creed, national origin, citizenship status, sex, sexual orientation, gender identity and expressions, genetic information, marital status, age, disability, or status as a covered veteran.

In addition, we are committed to furthering the principles of Equal Employment Opportunity (EEO) through Affirmative Action (AA).

We will consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance, the San Francisco Fair Chance Ordinance, and the New York City Fair Chance Act.

Posted 2026-02-24

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