Software Engineer

Job Summary

PLC Programmer with strong experience in wastewater or water treatment automation systems (WWTP/STP). The role involves developing and maintaining PLC/SCADA systems used for monitoring and controlling treatment processes such as pumping, filtration, aeration, and chemical dosing.

Key Responsibilities

• Design and develop PLC programs for wastewater treatment plants (WWTP/STP)
• Configure and maintain SCADA/HMI systems for plant monitoring and control
• Work on automation of key processes:

o Pumping stations

o Aeration systems

o Clarifiers and filtration units

o Chemical dosing systems

• Integrate field instruments (flow, level, pressure, pH, DO sensors) with PLC systems
• Troubleshoot PLC, SCADA, and instrumentation issues
• Interpret P&ID diagrams, electrical schematics, and control narratives
• Ensure compliance with environmental and safety standards
• Maintain proper documentation and version control of PLC programs

Required Skills

• Strong PLC programming experience:

o Ladder Logic, Function Block, Structured Text

• Hands-on experience with:

o Siemens (TIA Portal / Step 7)

o Allen-Bradley (Studio 5000 / RSLogix)

• SCADA/HMI tools:

o WinCC, FactoryTalk, Wonderware

• Industrial communication protocols:

o Modbus, Profibus, Profinet, Ethernet/IP

• Strong troubleshooting in process automation environments

Domain Expertise

• Experience in:

o Wastewater Treatment Plants (WWTP)

o Sewage Treatment Plants (STP)

o Water Treatment Plants (WTP)

• Understanding of treatment processes:

o Biological treatment (aeration, activated sludge)

o Filtration and clarification

o Sludge handling

Qualifications

• Bachelor’s degree in Electrical / Electronics / Instrumentation Engineering

Soft Skills

• Strong problem-solving and analytical skills
• Ability to work on-site and handle commissioning activities
• Good communication with cross-functional teams