SCADA Field I/O Technician

The Senior SCADA Field I/O Technician is a key technical expert responsible for the execution, oversight, and quality assurance of SCADA-related field I/O infrastructure. This role ensures end-to-end signal integrity from sensors and actuators to SCADA/HMI platforms. The technician will lead field commissioning activities, resolve complex I/O issues, and mentor junior technicians.

Key Responsibilities:

• Lead and execute field-level I/O installation, testing, commissioning, and troubleshooting.

• Ensure reliable data transfer between SCADA systems and field devices (analog/digital).

• Perform detailed loop checks and root cause analysis on signal discrepancies.

• Interface with PLC/DCS systems for signal tracing and diagnostics.

• Collaborate with engineering and IT/OT teams on tag mapping and SCADA integration.

• Review and redline wiring diagrams, loop drawings, and control schematics.

• Guide and supervise junior field technicians during site execution.

• Support audits, FAT/SAT, and control system handover activities.

Key Focus Areas:

1. Advanced Signal Integrity & Diagnostics

   • Detect, isolate, and resolve complex wiring or signal noise issues

   • Validate signal quality using loop calibrators, HART communicators, and multimeters

2. SCADA–Field Interface Management

   • Cross-functional coordination with control room and SCADA programmers

   • Ensure data accuracy and tag consistency across multiple systems

3. Documentation and Redlining

   • Maintain up-to-date terminal schedules, I/O lists, and signal traceability sheets

   • Support documentation for regulatory and QA compliance

4. I/O Commissioning Leadership

   • Plan and lead I/O loop checks during new installations, expansions, or shutdowns

   • Prioritize tasks, manage timelines, and coordinate with electrical contractors

5. Team Mentorship & Quality Assurance

   • Supervise junior technicians on best practices in wiring, labeling, and testing

   • Enforce safety standards and contribute to continuous improvement efforts

Qualifications:

• Education:

  • Diploma or Degree in Instrumentation, Electronics, Electrical, or Mechatronics

• Experience:

  • 5–10 years in SCADA-based field I/O roles in industrial environments

• Technical Skills:

  • Proficient in:

    • Loop and function testing

    • Analog/digital I/O verification

    • Wiring standards (IS/IEC), panel troubleshooting

    • Exposure to PLCs (Siemens, Allen Bradley, Schneider, etc.)

    • SCADA platforms (Wonderware, WinCC, iFIX, Citect, etc.)

• Soft Skills:

  • Leadership qualities, proactive problem solving, and ability to manage site teams

  • Clear communication with engineers, vendors, and operations staff

  • Strong documentation and reporting capabilities