Service Engineer

at ECOLAB, INC in Naperville, Illinois, United States

Job Description

Service EngineerLiquid Cooling Systems - InRow LiquidtoLiquid CDUs
Role Overview:The Service Engineer is the highest field escalationlevel technical resource supporting OEM inrow, liquidtoliquid Coolant Distribution Units (CDUs). This role provides deep technical expertise across mechanical systems, electrical power distribution, and control platforms (PLC/HMI/BMS integration).In addition to advanced troubleshooting and commissioning support, the Service Engineer serves as a technical authority, mentor, and trainer, enabling internal service teams and delivering customerfacing training during deployments, handoffs, and lifecycle engagements. This role is critical to ensuring system uptime, customer confidence, and scalable service excellence.

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 with a company that is passionate about your career development
Paid training held in the field and at Nalco Water Headquarters in Naperville, IL
Enjoy a flexible, independent work environment
Receive a non-decaled company vehicle for business and personal use
Comprehensive benefits package starting day 1 of employment - medical, dental, vision, matching 401(k), company paid pension, stock purchase plan, tuition reimbursement and more!
What You Will Do:
Technical Support & Escalation:
Act asfinal technical escalation pointfor inrow liquidtoliquid CDU issues not resolved by other field technician resources
Lead troubleshooting of complex systemlevel issues involving:
Pumps, valves, heat exchangers, sensors, and piping
Power distribution, VFDs, motor protection, and grounding
PLC logic, HMI behavior, alarm handling, and controls interlocks
Performroot cause analysis (RCA)for repeat or highimpact failures and define corrective/preventive actions
Support24x7 escalation coverageas part of the senior oncall rotation

Commissioning & Field Execution:
Lead or supportservice engineer commissioning activities, including:
Prefunctional inspections and I/O checkout
Control sequences verification and failsafe validation
Flow balancing, pressure validation, and heat load simulations
Support field modifications, retrofits, and design clarifications in coordination with Engineering
Serve as technical authority duringcritical customer events(first power, load ramp, incident response)

Controls & Systems Integration:
Support and troubleshoot:
PLC platforms (e.g., Rockwell, Siemens, Schneider)
HMIs, firmware updates, and configuration management
BMS, EPMS, and DCIM integrations (BACnet, Modbus, SNMP)
Assist in defining alarm philosophy, setpoints, and servicesafe control behaviors

Training & Technical Enablement:
Develop and deliverinternal trainingfor L1/L2 service engineers, including:
CDU fundamentals and system architecture
Troubleshooting workflows and escalation criteria
Safety, lockout/tagout (LOTO), and service best practices
Delivercustomerfacing training, including:
Operations & maintenance (O&M) training
Commissioning handoff and system familiarization
Advanced troubleshooting workshops (where applicable)
Contribute to training materials such as:
Service manuals, troubleshooting matrices, and quickreference guides
Slide decks, handson lab content, and field playbooks

Documentation & Continuous Improvement:
Provide field feedback to Engineering, Product Management, and Quality teams
Contribute to:
Service procedures and preventative maintenance standards
Commissioning checklists and acceptance... For full info follow application link.

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.