Job location: Site Based - West Sumbawa, with a regular working schedule of 5:2 (Monday-Friday). Key responsibilities include ensuring reliable and continuous operation of instrumentation, control, and automation systems for the SWRO Desalination Plant, sitewide WTP, and STP facilities. This involves advanced technical troubleshooting and optimization of PLC, HMI, and VSD systems across Utilities water and wastewater assets, supporting system availability, process stability, and safe operation of desalination, potable water, and sewage treatment processes, as well as ensuring instrumentation and control systems meet water quality, environmental compliance, and operational requirements sitewide. Under Instrumentation & Control – Technical duties, the role maintains, troubleshoots, and optimizes PLC, HMI, and control system performance for SWRO, WTP, STP, pre-treatment, CIP, sludge handling, aeration, and chemical dosing systems. It also involves configuring, monitoring, and optimizing VSD parameters for pumps, blowers, mixers, and motors used in water and wastewater treatment processes; reviewing, maintaining, and optimizing alarms, interlocks, and control logic to ensure safe, stable, and reliable operation across Utilities facilities; supporting commissioning, performance testing, and system handover activities for desalination, WTP, and STP assets; and coordinating with OEMs and vendors for advanced troubleshooting, system upgrades, and automation improvements sitewide. Under Instrumentation Maintenance & Reliability, responsibilities include overseeing calibration, inspection, and maintenance of field instruments such as flow, pressure, level, pH, conductivity, ORP, turbidity, chlorine, and other process analyzers. Proper inspection and maintenance of MCCs, control panels, PLC cabinets, analyzers, and instrumentation cabling across Utilities facilities is required. The role develops, implements, and continuously improves preventive maintenance strategies for instrumentation and automation assets, and maintains instrumentation drawings, loop diagrams, control narratives, and automation documentation in accordance with IFMS standards. Under Operational Support, the position provides engineering and troubleshooting support to operations teams during abnormal conditions, plant trips, and process upsets across SWRO, WTP, and STP. It supports data trending, monitoring, and performance analysis for process optimization, membrane protection, and biological process stability, assists in root cause analysis (RCA) for control system failures and recurring instrumentation issues, and ensures proper backup, version control, and change management for PLC and HMI programs across sitewide systems. Under Continuous Improvement & Projects, the role identifies opportunities for automation enhancement, energy efficiency, reliability improvement, and operational risk reduction. It supports minor modification, debottlenecking, and improvement projects related to instrumentation and control systems across Utilities assets, and participates in technical reviews for new equipment, system upgrades, and Utilities water and wastewater technology implementation. Required skills and experience: A Bachelor's degree in electrical engineering, Instrumentation Engineering, Control Engineering, or related field with relevant automation or control system certification. A minimum of 5-7 years' experience in instrumentation and control systems within water treatment, wastewater treatment, desalination, power plant, or industrial utilities, with preferred experience in SWRO and desalination plant. Knowledge of PLC/SCADA and HMI systems, field instrumentation, and basic process control concepts across platforms such as Siemens, Allen‑Bradley, Schneider Electric, Omron, or equivalent, along with strong analytical and troubleshooting skills, the ability to work independently under pressure, and experience in commissioning, system optimization, and root cause analysis (RCA). Proficiency in Microsoft Office and engineering documentation tools, with familiarity in CMMS platforms and control system software. Excellent communication skills in English both verbal and written, and computer literate. Applicants should be aware of certain frauds or misinformation regarding recruitment advertising on behalf of amman.co.id. No payments whatsoever are ever asked from applicants or candidates during the recruitment process. Applicants or candidates are never asked to use specific travel agent services to make arrangements for transportation and accommodation during the recruitment process.

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