Precommissioning and Commissioning Field Instrument Supervisor

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Job purpose

The pre-commissioning & commissioning field instrument supervisor is responsible for supervising and executing all field instrumentation activities during the pre-commissioning and commissioning phases of a major process facility. The role ensures that instrumentation systems are installed, tested, calibrated, loop-checked, and commissioned safely, efficiently, and in accordance with project specifications and international standards.

Key responsibilities

Pre-commissioning phase

• Supervise field instrumentation activities, including installation checks, calibration, testing, and reinstatement
• Review and execute pre-commissioning procedures, check sheets, and test records
• Coordinate loop checking, functional testing, and punch listing/clearance
• Ensure correct installation and readiness of instruments, control valves, analyzers, and associated systems
• Verify compliance with project specifications, drawings, and approved vendor documentation

Commissioning phase

• Support cold and hot commissioning activities for instrumentation systems
• Coordinate with commissioning engineers, operations, electrical, and DCS teams
• Troubleshoot instrumentation issues during system startup and stabilize operations
• Support logic checks, cause & effect testing, and system handover to operations
• Ensure timely closure of punch items related to instrumentation

HSE & quality

• Enforce strict compliance with HSE policies, procedures, and permit to work systems
• Conduct toolbox talks and ensure safe execution of site activities
• Ensure all commissioning documentation is completed accurately and submitted on time

Coordination & reporting

• Supervise and guide technicians and subcontractors in the field
• Report daily progress, constraints, and technical issues to commissioning management
• Interface with construction, QA/QC, and client representatives as required

Qualifications & experience (must have)

• Diploma or bachelor’s degree in instrumentation, control engineering, or equivalent
• Minimum 8–12 years of experience in field instrumentation, with strong exposure to pre-commissioning and commissioning
• Prior experience on large oil & gas, LNG, petrochemical, or process plant projects
• Hands-on experience with:
  • Field instruments (pressure, temperature, flow, level)
  • Control valves and actuators
  • Analyzers and packaged units
  • Loop checking and functional testing
• Strong understanding of commissioning procedures, system turnover, and punch management

Certifications & technical skills

• Valid HSE certification (e.g., IOSH, NEBOSH, or equivalent)
• Familiar with international standards (IEC, ISA, API)
• Ability to read and interpret P&IDs, loop diagrams, hookups, and wiring diagrams
• Experience working with DCS/PLC systems in a commissioning environment

Soft skills & attributes

• Strong leadership and field supervision skills
• Excellent coordination and communication abilities
• Problem-solving mindset with strong troubleshooting capability
• Able to work under pressure in fast paced commissioning environments
• Willingness to work extended hours and rotational site schedules

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