* Prepare and review **instrumentation design deliverables** including Instrument Index, I/O list, cable schedules, and hook\-up drawings. * Perform **instrument sizing and selection** for transmitters, flow meters, control valves, and field instruments. * Develop **control system layouts, loop diagrams, and termination drawings**. * Prepare **material requisitions, datasheets, and technical bid evaluations**. * Coordinate with process, mechanical, and electrical disciplines for integrated design deliverables. * Review and approve vendor documents to ensure compliance with project specifications and international standards (ISA, IEC, API, etc.). * Provide **technical support** during installation, testing, and commissioning phases. * Participate in **site surveys** and ensure compliance with client standards (PDO, OQ, Oxy Oman, etc.). Job Types: Full\-time, Permanent Pay: RO1,000\.000 \- RO1,400\.000 per month