Service Engineer

Service Engineer

Liquid 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.

Whats in it For You:

• The opportunity to take on some of the worlds 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 criteria

  • Failure trend analysis and reliability improvements

• Mentor junior engineers and help shape technical service standards

Location / Travel Required:

• Preferred location is U.S.; Open to candidates living anywhere in the U.S. close to a major airport

• Travel up to 75%

Minimum Qualifications:

• Associate degree (A.S.) or equivalent from a twoyear college or technical school; or seven to ten years related experience and/or training; or equivalent combination of education and experience.

• 3 years of mechanical and electrical field service equipment experience

Preferred Qualifications:

• Data center commissioning experience

• AI/HPC liquid cooling exposure

• OEM missioncritical service background

• Familiarity with RCA/FMEA methodologies

• Bachelors degree in Mechanical Electrical or Controls Engineering (or equivalent experience)

• 7 years field service commissioning or systems engineering experience

• 3 years supporting liquid cooling systems in missioncritical environments

About Nalco Water:

In a world with increasing water shortage and contamination challenges Nalco Water an Ecolab company helps customers conserve more than 161 billion gallons of water each year. We work with customers across the world in the light industry (institutional food & beverage manufacturing transportation textile care and global high tech) and heavy industry (chemical downstream paper mining power and primary metals industries) to reduce reuse and recycle their water while protecting their systems and equipment. Nalco Water provides the unique opportunity to work with a broad suite of technologies to deliver automated monitoring systems data analysis and deep technical expertise to increase efficiency sustainability and performance for our customers.

Anticipated Job Posting End Date:

Annual or Hourly Compensation Range: