PLC & SCADA Engineer
The PLC & SCADA Engineer is responsible for the design, programming, testing, commissioning,
troubleshooting, and maintenance of PLC, HMI, and SCADA systems for water and wastewater treatment
plants. The role involves integrating instrumentation, electrical systems, VFDs, analyzers, and field
devices to ensure reliable plant operation and compliance with project specifications.
Key Responsibilities
Engineering & Design
Design PLC control systems for water and wastewater treatment plants.
Develop PLC software in accordance with project specifications and functional design
documents.
Design and configure SCADA and HMI applications for plant monitoring and control.
Prepare control philosophies, I/O lists, network architecture, and automation documentation.
Review P&IDs, electrical drawings, and control panel drawings.
PLC Programming
Develop PLC programs for treatment processes:
Configure communication protocols such as:
o Modbus RTU/TCP
o Profibus
o Profinet
o Ethernet/IP
o OPC
SCADA Development
Develop graphical SCADA screens.
Configure alarms and event logging.
Configure historical trending and reporting.
Implement user access levels and security.
Integrate PLCs with SCADA servers.
Commissioning
Perform FAT (Factory Acceptance Test).
Perform SAT (Site Acceptance Test).
Commission PLC and SCADA systems at site.
Conduct I/O testing and loop checking.
Troubleshoot automation and communication issues.
Support plant start-up activities.
Instrumentation & Electrical Coordination
Interface with field instruments including:
o Flow meters
o Pressure transmitters
o Level transmitters
o pH analyzers
o Conductivity analyzers
o DO analyzers
o Turbidity analyzers
o Chlorine analyzers
Coordinate with electrical and mechanical teams during installation and commissioning.
Documentation
Prepare:
o Functional Design Specifications (FDS)
o Operation Manuals
o Commissioning Reports
o As-built Documentation
o Backup of PLC and SCADA programso Technical Reports
Required Technical Skills
PLC Platforms
Siemens (S7-1200, S7-1500, TIA Portal) ,(S7-300,S7-400H)
Allen-Bradley (Rockwell)
Schneider Electric
Mitsubishi
Omron (preferred)
SCADA Platforms
Siemens WinCC TIA PORTAL
FactoryTalk View
WinCC Unified (preferred)
WINCC SCADA
HMI
Siemens Comfort Panels
Weintek
Software
Siemens TIA Portal
WinCC
AutoCAD
Microsoft Office
Preferred Experience
Candidates with experience in the following will be highly preferred:
Wastewater Treatment Plants (WWTP)
Sewage Treatment Plants (STP)
Water Treatment Plants (WTP)
Reverse Osmosis (RO) Plants
UF/MBR Systems
Pumping Stations
Industrial Water Treatment
Desalination Plants
Key Competencies
PLC Programming
SCADA Development
Automation System Design
Process Control
Instrumentation
Electrical Troubleshooting
Commissioning
Industrial Networking
Problem Solving
Teamwork
Communication Skills
Time ManagementPreferred Certifications
Siemens Certified Programmer
Rockwell Automation Certification
Schneider Electric Automation Certification
ISA Certified Automation Professional (CAP) (preferred)
Valid UAE Driving License (preferred)
Required Qualifications
Bachelor's Degree in Automation Engineering / Electrical Engineering, Electronics Engineering,
Instrumentation Engineering.
3 8 years of experience in industrial automation.
Minimum 5 years of experience in Water or Wastewater Treatment projects.
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TRACTEBEL ENGINEERING S.A DUBAI BRANCH · Dubai - United Arab Emirates (UAE)
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