PLC & SCADA Engineer

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 programs o Technical Reports

Desired Candidate Profile

• Bachelor's Degree in Automation Engineering / Electrical Engineering, Electronics

Engineering, Instrumentation Engineering.

• 2–8 years of experience in industrial automation.
• Minimum 2 years of experience in Water or Wastewater Treatment projects.

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 Management

Preferred Certifications

• Siemens Certified Programmer
• Rockwell Automation Certification
• Schneider Electric Automation Certification
• ISA Certified Automation Professional (CAP) (preferred)