Engineer, Pre-com & commissioning – GEP &

• SURF About the job Engineer, Pre-com & commissioning – GEP &

• SURF Engineer, Pre-com & commissioning – GEP &

• SURF (Third Party Contractor) Role Purpose: A Pre-commissioning &

• Commissioning Engineer is responsible for planning, coordinating, and executing all activities required to prepare a subsea system for safe startup and operation. This includes mechanical completion verification, testing, cleaning, and system handover to operations.

Responsibilities include but are not limited to the following:

- Develop/review pre-commissioning and commissioning procedures for subsea systems (Gas Export Pipeline, Flowlines, Subsea Xmas Trees, PLETs, manifolds, umbilicals) - Review design documents (P&IDs;, Isometrics, alignment sheets, datasheets).
- Define method statements for:
- Flooding, cleaning, gauging - Hydrostatic testing - Dewatering and drying - Prepare commissioning dossiers and system boundaries.

Plan/Execute/supervise/monitor/manage

- Pipeline/Flowline cleaning (pigging, flushing) - Gauging to confirm internal diameter integrity - Hydrotest (strength & leak test) - Test water sourcing, treatment, and disposal - Chemical dosing (corrosion inhibitor, oxygen scavenger) - Ensure compliance with specifications and codes (e.g., SNI, DNV, API).
- Dewatering & Drying Plan/Execute/supervise/monitor/manage:
- Dewatering using air or nitrogen pigging - Drying to required dew point (e.g.,



-20°C or lower depending spec) - Dew point measurement - Prepare pipeline for hydrocarbon introduction.

Plan/Execute/supervise/monitor/manage

- Leak testing Interface with:
- Topside / FPSO / onshore facilities - Support first hydrocarbon introduction. 5.

Offshore Execution Work onboard

- Lay vessels - Construction vessels - FPSO - Supervise subcontractors and vendors.
- Ensure execution aligns with project schedule and safety standards. 6.

Documentation & Handover Prepare:

- Test reports - Punch lists - System completion certificates (RFSU / RFO) - Compile commissioning dossiers for handover to operations team.
- Ensure all QA/QC documentation is complete and approved.
- HSSE Compliance Implement HSSE procedures during all activities.

Conduct

- Ensure safe handling of:
- High-pressure systems - Chemicals Qualifications:
- Mechanical Engineering - Offshore / Ocean Engineering - Civil Engineering Experience:
- Minimum 10 yrs solid experience years in pre-commissioning & commissioning of subsea system in oil & gas.

Knowledge & Skills:

- Strong knowledge of:
- Pigging operations - Hydrotesting standards - Familiar with codes:
- SNI - DNV-ST-N001 - API standards - Other Oil & Gas international standards Soft Skills - Strong coordination & leadership offshore - Problem-solving under pressure - Effective communication with multi-disciplinary teams

📌 Engineer, Pre-com & commissioning – GEP & SURF (Asia)
🏢 Mubadala Energy
📍 Asia