Instrumentation Engineer - Design & Engineering

Key Responsibilities

• Review & approve I&C deliverables: Control philosophies, P&IDs, instrument index/datasheets, I/O lists, cause & effect diagrams, alarm/interlock logic.
• Ensure compliance with client specs, international standards (IEC, ISA, IEEE, API, SIL/IEC 61511), and local regulations.
• Participate in design reviews, HAZOP, SIL, LOPA, and safety studies.
• Coordinate I&C interfaces with Process, Electrical, Mechanical, and Package units.
• Review & approve DCS/PLC, SIS/ESD, gas detection (Cl, H, HCl, VOCs), and fire/alarm systems; ensure segregation & redundancy in chlorine/hydrogen areas.
• Approve instruments for corrosive/toxic services: Pressure, flow, temperature, level (hazardous area), analyzers (Cl, moisture, pH, conductivity); ensure proper material selection & compliance.
• Review & approve instrument/system requisitions, TBE, vendor drawings; participate in vendor meetings; ensure maintainability, spares, FAT planning & witnessing.
• Ensure document control, traceability, and approval of deviations & technical queries.
• Support project specs, standardization guidelines, and lessons learned documentation.
• Act as single point of contact for I&C with client, consultant, vendors, and other disciplines.
• Support planning for installation, pre-commissioning, commissioning, and start-up.

Requirements

Functional Skills:

• Strong knowledge of DCS, PLC, SIS / ESD systems architecture and configuration
• Experience in chlorine, hydrogen, and HCl handling instrumentation systems
• Preparation and review of P&IDs, Instrument Index, I/O List, Control Philosophy, C&E diagrams
• Selection and specification of instruments for corrosive and hazardous services
• Knowledge of Hazardous Area Classification (Zone 1 / Zone 2) and intrinsic safety concepts
• Hands-on experience with pressure, flow, level, temperature transmitters and control valves
• Familiarity with Gas Detection Systems (Cl, H), Fire & Alarm systems
• Experience in Analyzer systems (Chlorine, pH, Conductivity, Moisture, etc.)
• Understanding of IEC, ISA, API standards and IEC 61511 (SIL) requirements
• Participation in HAZOP, SIL, LOPA studies
• Vendor document review, technical bid evaluation, and FAT witnessing
• Knowledge of Material selection (PTFE, Monel, Hastelloy, FRP, etc.) for chlorine service
• Experience in installation supervision, loop checking, pre-commissioning and commissioning
• Familiarity with calibration procedures and maintenance planning
• Strong troubleshooting skills in plant operations and shutdown scenarios.