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Maintenance Manager

Ecolab · Naperville, IL · $83,600–$125,300 a year · Full time

Posted Oct 1, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you led a maintenance team through a major equipment failure.

What they are checking: Whether they stay calm, organize the team well and restore service safely during a crisis.

How do you develop the people on your maintenance team?

What they are checking: Whether they invest in building their team's skills rather than just assigning work.

Tell me about a continuous improvement project you led in facilities.

What they are checking: Whether they have actually driven improvements and can measure what changed.

What would you do

One of your technicians keeps skipping safety steps to finish jobs faster. How do you handle it?

What they are checking: Whether they address safety problems directly and coach people rather than ignoring the behavior.

You're managing a construction project inside a working facility. How do you keep operations running safely?

What they are checking: Whether they can plan around occupants and coordinate contractors so work does not disrupt the building.

Two urgent requests come in at once and you only have one technician available. How do you decide?

What they are checking: Whether they prioritize based on safety and business impact and communicate the decision clearly.

About the work

Walk me through how you'd build a preventive maintenance program for a facility's HVAC, electrical and plumbing systems.

What they are checking: Whether they can design a structured PM program based on equipment criticality instead of reacting to breakdowns.

How do you decide whether to repair a building system or replace it?

What they are checking: Whether they weigh cost, risk and lifecycle data instead of fixing things the same way every time.

What maintenance metrics do you track, and how have you used them to improve reliability?

What they are checking: Whether they manage with data like downtime and PM completion rather than gut feel.

How do you manage outside contractors to make sure the work is done right?

What they are checking: Whether they set clear expectations and inspect work instead of trusting contractors blindly.

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The full job description

As published by Ecolab.

Ecolab is seeking a Maintenance Manager to support the Facilities team. As the Maintenance Manager, you will be responsible for planning, organizing, and directing the operation, construction, maintenance, and repair of building systems and facility infrastructure. This role will provide leadership to a team of maintenance professionals while ensuring the safe, reliable, and efficient operation of facility equipment and systems. The Maintenance Manager will solve complex technical issues, drive preventative maintenance programs, and support continuous improvement initiatives to optimize facility performance. What’s in it For You: · Opportunity to lead facility operations within a global organization focused on innovation and sustainability · Exposure to a wide range of facility systems and technologies · Collaborative work environment with opportunities for career growth and development · Ability to make a direct impact on equipment reliability, operational efficiency, and workplace safety · Competitive compensation and comprehensive benefits package What You Will Do: · Plan, organize, and supervise facility maintenance, construction, repair, and operational activities. · Lead, coach, develop, and support a team of non-Supply Chain maintenance employees. · Ensure the safe and efficient operation of facility systems, equipment, and infrastructure. · Troubleshoot and resolve complex facility and equipment issues with minimal supervision. · Oversee preventive, predictive, and corrective maintenance programs. · Monitor and maintain building automation systems, refrigerant compressors, air compressors, electrical motors, fuel oil systems, steam and condensate systems, HVAC systems, gas distribution systems, sanitary sewer systems, electrical power distribution systems, and related auxiliary equipment. · Coordinate contractors, vendors, and service providers to support facility projects and maintenance activities. · Ensure compliance with applicable safety, environmental, and regulatory requirements. · Manage maintenance schedules, work orders, and resource allocation to support operational objectives. · Identify and implement continuous improvement opportunities that enhance reliability, efficiency, and cost effectiveness. · Support facility capital projects, upgrades, and infrastructure improvements. · Collaborate with cross-functional stakeholders to address facility-related needs and priorities. Position Details (Location & Work Schedule): · Location: Naperville, IL · Work Schedule: Monday – Friday, 7:30 AM-4:00 PM · Travel: Less than 10% Minimum Qualifications: · Bachelor’s degree in Engineering, Facilities Management, Industrial Technology, a related field, or equivalent experience. · 10+ years of facilities maintenance and operations experience. · 4+ years of experience leading or supervising maintenance teams. · Demonstrated experience troubleshooting and maintaining complex facility systems and equipment. · Strong knowledge of building systems, preventive maintenance practices, and facility operations. · Ability to effectively lead teams, prioritize work, and manage multiple projects simultaneously. · Strong problem-solving, communication, and interpersonal skills. · Proficiency with computerized maintenance management systems (CMMS) and standard business software. Preferred Qualifications: · Experience supporting manufacturing, industrial, or large commercial facility environments. · Knowledge of building automation systems and energy management systems. · Experience managing contractors and external service providers. · Professional certifications related to facilities management, maintenance, electrical, HVAC, or building operations. · Experience leading continuous improvement or reliability initiatives. · Working knowledge of applicable safety and environmental regulations. Annual or Hourly Compensation Range The base salary range for this position is $83,600.00 - $125,300.00. This position is eligible for annual bonus pay based on performance, per plan terms. 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. Click here 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. 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.

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