Instrumentation Engineer PLC & SCADA

Shree Vinay Engineering Services; Sonipat; On-site; INR 350,000 - 550,000; Full time

Job summary

Shree Vinay Engineering Services in Haryana, India seeks an Automation Technician with 2 years of experience in industrial automation, instrumentation, and PLC/SCADA for water and wastewater projects. The role focuses on diagnosing faults, maintaining PLC/HMI/SCADA systems, and calibrating field sensors.

Candidate should have hands-on PLC troubleshooting experience and be able to coordinate with electrical and mechanical teams to minimize downtime and ensure reliable plant operation.

Qualifications

• 2 years of relevant experience in industrial automation, instrumentation, PLC/SCADA or water/wastewater treatment plants.
• Hands-on PLC troubleshooting experience preferred.
• Experience with field sensors and instrumentation calibration is a plus.

Responsibilities

• Troubleshoot and maintain PLC, HMI and SCADA systems.
• Diagnose PLC I/O, communication and programming faults.
• Troubleshoot field instruments: flow meters, sensors, valves and transmitters.
• Check DI/DO/AI/AO signals and diagnose panel issues.
• Maintain records: calibration reports and breakdown logs.
• Support preventive maintenance and modify PLC logic as needed.
• Coordinate with electrical and mechanical teams during breakdowns.
• Ensure minimal downtime of automation systems.

Skills

PLC/SCADA troubleshooting

Instrumentation

HMI integration

Water treatment plants

Job description

Role & responsibilities

Troubleshoot and maintain PLC, HMI and SCADA systems.

• Diagnose PLC input/output, communication and programming-related faults.
• Troubleshoot field instruments such as:
  • Flow meters
  • Level transmitters
  • Pressure transmitters
  • pH sensors
  • ORP sensors
  • Conductivity/TDS sensors
  • DO sensors
  • Turbidity sensors
  • Control valves
  • Motorized valves
  • Limit switches
• Check and troubleshoot DI/DO/AI/AO signals.
• Troubleshoot PLC panels, control panels, relays, contactors, SMPS and signal isolators.
• Identify and rectify PLC communication faults between PLC, HMI, SCADA, VFDs and field instruments.
• Perform calibration and basic troubleshooting of instrumentation.
• Monitor and maintain automatic sequences and interlocks of STP/ETP/WTP plants.
• Understand and troubleshoot Auto/Manual operation logic.
• Coordinate with electrical and mechanical teams during breakdowns.
• Maintain instrumentation and automation records, calibration reports and breakdown reports.
• Support preventive maintenance of PLC, SCADA and field instrumentation.
• Assist in modification and improvement of PLC logic and plant automation.
• Ensure minimum downtime of the automation system.

Preferred candidate profile

2 years of relevant experience in industrial automation, instrumentation, PLC/SCADA or water/wastewater treatment plants.

Candidates with strong hands-on PLC troubleshooting experience will be preferred.