Control Engineer

Sterling Engineering
Elmhurst, IL

Controls Engineer (PLC / Automation)

Onsite Role | NO TRAVEL


Overview

Join a tight-knit engineering team building advanced cooling systems used in cutting-edge technologies like electron optics, MRI, x-ray, and medical devices. This is a hands-on role in a collaborative, down-to-earth environment where you can grow long-term and make a direct impact.


What You’ll Do

• Develop and maintain PLC control architectures for chiller systems

• Manage version control and change management for PLC programs

• Partner with design engineers on new product configurations

• Code, test, and validate PLC/embedded software (Carel platform)

• Implement control strategies (VFDs, load matching, energy optimization)

• Work hands-on with manufacturing, testing, and debugging

• Integrate sensors, valves, motor controllers, and control components

• Perform PID tuning and system performance testing

• Support BMS integration (Modbus, BACnet, CAN, etc.)

• Conduct root cause analysis and drive corrective actions

• Create technical documentation (I/O lists, diagrams, manuals)


What You Bring

• Experience with PLC programming and industrial controls

• Strong understanding of HVAC/refrigeration or fluid systems (preferred)

• Experience with communication protocols (Modbus, BACnet, etc.)

• Ability to work cross-functionally with engineering + production teams

• Hands-on mindset with strong troubleshooting skills


Why This Role

NO TRAVEL – fully onsite, stable schedule

• Hands-on engineering + real product ownership

• Collaborative, team-first culture

• Long-term growth into leadership opportunities

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