Instrumentation and Automation Control System Technician

Optimal; Dhahran Compound; On-site; SAR 60,000 - 80,000; Full time

Job summary

Optimal is seeking an Instrumentation and Automation Control System Technician in Dhahran Compound, Eastern Province, Saudi Arabia. This role involves installation, maintenance, and troubleshooting of field instruments and automation control systems in industrial environments.

The ideal candidate will have a diploma or degree in a relevant field, a minimum of 2 years of experience, and familiarity with HSE standards. Key skills include proficiency in PLC and DCS systems, communication protocols, and fault-finding abilities.

Qualifications

• Minimum 2 years of experience in instrumentation and/or control system maintenance in an industrial environment.
• Familiarity with hazardous area classifications and compliance with HSE standards.
• Valid safety certificates (First Aid, H2S, COSHH, or equivalent) are an advantage.

Responsibilities

• Install, maintain, calibrate, and troubleshoot field instruments.
• Perform loop checking, wiring, cable termination, and signal testing.
• Execute panel wiring, I/O verification, and logic checks.

Skills

HART, Modbus, and Profibus communication protocols

PLC, DCS, SCADA, and HMI platforms

Fault-finding and root-cause analysis

Industrial safety practices

Education

Diploma or degree in Instrumentation, Electrical Engineering, Electronics, Automation, or Mechatronics

Tools

Pressure calibrators

Dry blocks

Multimeters

Job description

Instrumentation and Automation Control System Technician

Job Summary

Responsible for the installation, maintenance, troubleshooting, and loop checking of field instruments and automation control system equipment in industrial environments. This combined role covers both process measurement (pressure, temperature, flow, level) and control system hardware (PLC, DCS, SCADA, HMI, panel wiring, I/O testing). The role operates across site field activities, automation panels, and control logic, requiring proficiency in both instrumentation and electrical automation disciplines.

Job Description and Responsibilities

• Install, maintain, calibrate, and troubleshoot field instruments including transmitters, sensors, pressure gauges, temperature elements, flow meters, and level devices.
• Perform loop checking, wiring, cable termination, ferruling, labeling, and signal testing on instrumentation circuits.
• Install, maintain, and troubleshoot automation and control system equipment including PLCs, DCS panels, HMI units, RTUs, and I/O modules.
• Execute panel wiring, I/O verification, logic checks, and system diagnostics on control system hardware.
• Perform preventive and corrective maintenance in accordance with OEM manuals, site procedures, and the permit-to-work (PTW) system.
• Support commissioning, pre-commissioning, shutdown, and turnaround activities.
• Read and interpret instrument loop diagrams, P&IDs, electrical schematics, and control logic drawings.
• Maintain calibration records, loop check sheets, and maintenance logs in the ERP/CMMS system.
• Coordinate with operations, engineering, and HSE teams to maintain plant reliability and safety.
• Ensure compliance with applicable international standards (IEC, ISA) and client HSE requirements at all times.

Basic Qualifications

• Diploma or degree in Instrumentation, Electrical Engineering, Electronics, Automation, or Mechatronics.
• Minimum 2 years of experience in instrumentation and/or control system maintenance in an industrial environment.
• Experience in oil and gas, petrochemical, utilities, or similar industrial sectors is preferred.
• Familiarity with hazardous area classifications and compliance with HSE standards.
• Valid safety certificates (First Aid, H2S, COSHH, or equivalent) are an advantage.

Skills and Competencies

• Proficiency in HART, Modbus, and Profibus communication protocols.
• Hands-on experience with PLC, DCS, SCADA, and HMI platforms.
• Calibration of process instruments using dry blocks, pressure calibrators, and multimeters.
• Ability to read loop diagrams, P&IDs, and electrical schematics.
• Strong fault-finding and root-cause analysis skills in both field and panel environments.
• Knowledge of industrial safety practices, PTW systems, and LOTO procedures.
• Attention to detail and accurate documentation of maintenance activities.