Instrument technician

Job Description

Carry out installation, calibration, maintenance, troubleshooting, and repair of instrumentation and control systems.

Perform calibration and testing of pressure, temperature, flow, and level instruments.

Install and maintain transmitters, control valves, switches, gauges, sensors, and other field instruments.

Perform instrument tubing, impulse line installation, cable termination, and loop checking activities.

Conduct preventive and corrective maintenance of instrumentation equipment.

Read and interpret P&IDs, loop diagrams, hook-up drawings, wiring diagrams, and instrument datasheets.

Use calibration and testing equipment such as multifunction calibrators, HART communicators, and multimeters.

Assist with commissioning, functional testing, and troubleshooting of instrumentation and control systems.

Follow PTW, LOTO, JSA, toolbox talks, and applicable HSE procedures.

Requirements

Minimum 1-3 years of relevant experience as an Instrument Technician, preferably in Oil & Gas, refinery, petrochemical, industrial, or shutdown projects.

Diploma / ITI / Technical Certificate in Instrumentation, Electronics, or a related discipline.

Good experience in calibration, installation, maintenance, and troubleshooting of field instruments.

Knowledge of pressure, temperature, flow, and level measurement instruments.

Hands-on experience with control valves, transmitters, switches, sensors, and instrument tubing.

Ability to read P&IDs, loop diagrams, instrument drawings, and technical documentation.

Good understanding of Oil & Gas HSE requirements and safe working procedures.

Valid QID is required.

Relevant Oil & Gas certifications / site approvals will be an advantage.

Immediate joiners are preferred.

Location: Qatar

Requirements
5+ years of hands-on Siemens S7 experience — specifically S7-300 programming, diagnostics, and data block structure via Step 7 Classic or TIA Portal Profibus DP fluency — able to diagnose bus faults, read GSD device profiles, identify slave addresses, and recover from "MP Bus Blackout"-class faults without vendor support WinCC Flexible proficiency — able to navigate and extract tag configuration, alarm classes, and screen logic from an existing compiled WinCC Flexible project OPC UA implementation experience — via any of: Siemens Industrial PC OPC Server, KEPServerEX, open62541, or a Snap7-based Linux gateway solution Industrial networking — OT/IT convergence, unmanaged Profibus topology vs. managed Ethernet, VLAN design, and understanding of where IT security policy collides with OT real-time requirements Ability to independently read and produce electrical schematics, PLC I/O mapping sheets, drive parameter tables, and field device wiring diagrams Comfortable working on an active, high-visibility public-facing site in Qatar — able to obtain Qatar SafePass, site-specific HSE inductions, and work under the relevant site access protocols Fluent English — can write clear technical documentation and communicate directly with European OEM contractors, a remote software development team, and the client's facilities management team