Field Service Engineer

Your Job

John Zink is hiring a Field Service Technician to support refining and petrochemical customers throughout the Southern California region.

In this customer-facing role, you'll be the technical expert in the field, commissioning, troubleshooting, and maintaining industrial combustion, electrical, and control systems that help keep customer operations running safely and reliably.

Travel : This role requires 75%+ regional travel, with occasional national travel.

Home Base: This is a remote position within the Southern California region.

You'll work from your home office and travel directly to customer sites throughout the region.

This territory includes an established customer base with significant opportunity to expand customer relationships and support new business growth.

Our Team

John Zink Company, a Koch Engineered Solutions (KES) company, serves customers with innovative, engineered-to-order solutions.

Our equipment group business supplies components for applications in various markets with a focus on the refining and petrochemical Industry.

Our Field Service Technicians support our customers at their sites across the country with their commissioning, maintenance and other service needs.

What You Will Do


* Travel from your home base to customer sites to perform preventive maintenance, troubleshooting, testing, and commissioning of industrial equipment.


* Service and support electrical, mechanical, and control systems, including PLCs (Allen-Bradley, GE), VFDs, motors, pumps, valves, actuators, positioners, combustion/vapor control equipment, and emissions monitoring systems.


* Commission, troubleshoot, and modify industrial control systems, including PLC logic, PID loops, HMIs, and related devices.


* Diagnose and resolve electrical, controls, and instrumentation issues in live industrial environments using safe, effective work practices.


* Participate in an on-call rotation to support urgent customer needs.


* Maintain accurate technical documentation, including redlines on drawings and schematics.


* Perform work in confined spaces while following all required safety and entry procedures.


* Build strong customer relationships through clear, professional, and proactive communication.

Who You Are (Basic Qualifications)


* Hands on experience modifying, diagnosing, and troubleshooting PLC based control systems, including Allen Bradley, GE, or similar platforms.


* Working knowledge and application of NFPA 70E electrical safety standards.


* Ability to read and interpret P&IDs, electrical schematics, and fabrication drawings.


* Willingness and ability to travel 75% or more within the assigned region.


* Ability to obtain a Transportation Worker Identification Credential (TWIC) within six (6) weeks of employment.


* Valid driver's license with the ability to operate a company vehicle.

Physical & Work Environment Requirements



* Ability to lift up to 50 lbs occasi...