Field Service I&C Technician Water & Wastewater

Tesco Controls; Temecula (CA); On-site; USD 70,000 - 95,000; Full time

Job summary

Tesco Controls is seeking a Field Service Technician to lead and support on-site commissioning and startup activities for Water and Wastewater control system projects in the SoCal area. You will commission, test, and troubleshoot instrumentation and motor control cabinets, PLC cabinets, and document startup activities.

The role requires staying on-site at client sites about 90% of the time with occasional work from the Temecula office.

Qualifications

• Must have a valid driver's license with a clean driving record.
• Ability to travel through the SoCal Territory, stay overnight, and participate in 24/7 on-call rotation.
• College degree preferred or high school with relevant experience.
• Team-oriented with strong communication skills.
• Experience with instrumentation calibration documentation.
• Ability to read technical, maintenance, and safety documentation.
• Basic report writing and customer-facing communication skills.
• Knowledge of AC/DC voltage and current measurement.
• Profibus qualified.
• Proficient with digital multimeters and basic power tools.
• Strong attention to detail, organization, and time management.
• Able to work in confined spaces and at heights (ladders/lifts).

Responsibilities

• Configures parameters and troubleshoots VFDs (Variable Frequency Drives).
• Troubleshoots instrumentation and control systems using electrical ladder schematics.
• Calibrates, traces, and corrects control loop malfunctions; participates in maintenance and production concerning instrument systems.
• Verifies accuracy of gauges and measuring instruments such as pressure, flow, temperature, pH, turbidity, and conductivity; documents failure rates on equipment.
• Start-up Commissioning Pump/Motor Controls.
• Loop Check wires from Field to Monitoring Devices.
• Inspect/Commission/Calibrate Instrumentation (Pressure/Level/Flow).
• Inspect/Commission/Calibrate Analytical Sensors (pH/Chlorine/Turbidity).
• Troubleshoot Electrical/Control Logic.
• Troubleshoot Instrumentation (Pressure/Level/Flow).
• Wire modifications to panels per drawings.
• Site installations of electrical devices/motor controls.
• Repairs, tests, adjusts, or installs electronic equipment such as industrial controls, transmitters, HMI, VFD, and PLCs.
• Assembles, installs or repairs wiring, electrical and electronic components.

Skills

Teamwork

Communication

Attention to detail

Time management

Customer-facing

Reading technical docs

Report writing

Safety awareness

Education

College degree

High school diploma with experience

Tools

Digital multimeters

Power tools

Job description

Tesco Controls is seeking a Field Service Technician to lead and support on-site commissioning and startup activities for Water and Wastewater control system projects in the SoCal area. You will commission, test, and troubleshoot instrumentation and motor control cabinets, PLC cabinets, and document startup activities.

The role requires staying on-site at client sites about 90% of the time with occasional work from the Temecula office.