Instrumentation & Control Tech: PLCs, SCADA & Calibration

City-of-Tucso; Tucson (AZ); On-site; USD 50,000 - 75,000; Full time

Job summary

The City of Tucson is seeking an Instrumentation and Control Technician for the Water Department to install, maintain, calibrate, troubleshoot and repair electronic, mechanical and pneumatic instruments used to monitor and regulate processes within the water system.

Responsibilities include maintaining sensors and meters, calibrating instruments, testing PLC-based controls, and ensuring data integrity across SCADA and maintenance management systems.

Qualifications

• Experience in Electrical Systems or Equipment Repair and Service.
• Electronic or Instrumentation training from a recognized trade or technical school.
• Experience maintaining, repairing, troubleshooting instrumentation and control systems.
• Three or more years working with instrumentation and controls.
• Experience programming and configuring PLCs and software for HMI/PLC systems.
• Hands-on experience with pressure transmitters, flow meters, analytical instrumentation, level transmitters, and Fluke process meters.
• Experience interpreting wiring diagrams, schematic drawings, and P&ID drawings.

Responsibilities

• Maintains instrumentation and control devices, including flow meters, pressure transducers, level sensors, water quality monitors, chemical analyzers and remote communications systems.
• Calibrates instruments to ensure accurate reading.
• Conducts functional tests on PLC control systems, water quality sensors and telemetry data, documenting all results within maintenance management systems to maintain compliance and operational standards.
• Diagnoses malfunctions in instrumentation, PLC control systems, Ladder Logic software and radio communications.
• Interacts with SCADA systems to monitor water distribution and production operations.
• Maintains detailed records of maintenance activities, calibrations, repairs and system performance.

Skills

Electrical systems

Instrumentation

PLC programming

HMI software

Troubleshooting

Wiring diagrams

Education

Associate degree

Tools

Fluke meters

SCADA systems

Job description

The City of Tucson is seeking an Instrumentation and Control Technician for the Water Department to install, maintain, calibrate, troubleshoot and repair electronic, mechanical and pneumatic instruments used to monitor and regulate processes within the water system.

Responsibilities include maintaining sensors and meters, calibrating instruments, testing PLC-based controls, and ensuring data integrity across SCADA and maintenance management systems.