Instrumentation Engineer; WWTP

We, at Emarat Aloula is seeking a skilled and experienced Instrumentation (PLC/SCADA) Engineer to support the operation, maintenance, troubleshooting, and calibration of instrumentation and automation systems for our Wastewater Treatment Plant (Odour Control Project).

The ideal candidate should possess strong hands‑on experience in PLC, SCADA, industrial networks, instrumentation calibration, and maintenance, particularly within wastewater treatment or sewage treatment plant (STP) applications.

• Perform maintenance, troubleshooting, and calibration of field instrumentation systems.
• Handle calibration and maintenance of STP instruments including:
  • Dissolved Oxygen (DO) analyzers
  • pH analyzers
  • Flow transmitters
  • Level transmitters
  • Pressure transmitters
• Support operation and maintenance of PLC, SCADA, and HMI systems.
• Configure, troubleshoot, and maintain SIEMENS S7-1500 PLC systems.
• Work extensively with SIEMENS TIA Portal Software and Comfort Panel HMIs.
• Support and maintain industrial communication networks and protocols including:
  • PROFIBUS
  • DEVICE-NET
  • Modbus TCP/IP
  • Modbus RTU
• Perform basic configuration and troubleshooting of industrial network switches, including SIEMENS SCALANCE switches.
• Configure IP settings and replace faulty switches when required.
• Support operation and maintenance of VFD motors and related systems.
• Assist in SCADA monitoring, diagnostics, and system optimization.
• Support preventive and corrective maintenance activities for instrumentation and automation systems.
• Coordinate with operations and maintenance teams to ensure system reliability and minimal downtime.
• Maintain proper documentation, reports, and maintenance records.