International Energy Services Limited (IESL), established in 1990, is a specialist, multidisciplinary, energy services company that provides integrated, client-focused and cost-effective services in the oil and gas industry.
The Principal SURF (Subsea Umbilicals, Risers & Flowlines) Commissioning Engineer is responsible for leading the planning, execution, and assurance of all commissioning and start-up activities related to SURF systems in deepwater oil & gas developments.
This includes subsea umbilicals, flexible/rigid risers, production and injection flowlines, jumpers, and subsea distribution hardware.
The role ensures all SURF systems are pre-commissioned, tested, and safely handed over for operations in line with Nigerian regulatory requirements and international industry standards.
It also serves as a discipline lead, coordinating with project, construction, subsea installation, and operations teams to deliver safe and reliable subsea infrastructure.
Key Responsibilities
Promote Goal Zero Safety and Quality culture and drive compliance at the worksite.
Enforce Shell and IOGP HSE policies and procedures at Company worksites.
Review and provide input to technical specification documents, P&IDs and other detailed engineering documents for subsea control system and other interfacing systems.
Respond to SURF related queries and technical clarification questions from contractor.
Should be able to provide expert support for the SURF pre-commissioning and commissioning of a subsea tieback project. Role involves overseeing testing and operations of subsea equipment such
MCS (Master Control System), EPU (Electrical Power Unit), HPU (Hydraulic Power Unit), EJB, TUPA,
SCMs, Hardware Mounted Controls, manifolds, subsea distribution units, flowlines, umbilical, jumpers, tubing hangers, Christmas trees and associated transportation, storage, and installation aids comply with project specifications, procedures, design documentations and approved Inspection and test plan (ITP) and validation through testing.
Participate in Design Reviews, Technical Workshops HAZID, HAZOPs and any other Meetings / reviews as may be assigned in the Scope of Work.
Safe, timely and efficient execution and drive progress of work scope based on project schedule.
Develop testing protocols, testing procedure, operations procedure and aftermarket healthcare support to ensure operational integrity and readiness.
Witness site activities including Site Receipt Inspection, Site integration, Factory Acceptance Test,
Extended Factory Acceptance Test and System Integration Test and confirm compliance with the approved procedure.
Work with Contractor to ensure quality issues are properly identified, documented, reported and timely dispositioned.
Review and provide input to Assembly and Testing Procedure, storage and preservation, Transportation
Handling Instruction, Installation, and offshore Testing Procedure.
Supervise testing, pre-commissioning, and commissioning of the subsea systems.
Information & Digital Technology, Bonga asset & operations, Wells, marine, logistic, planning aviation,
subsea intervention etc. to ensure adequate support for project execution.
Log and track lessons Learned.
Review operation, and maintenance manuals and guidelines issued by contractor.
The service will involve work and travel to fabrication sites, OEM facility and producing FPSO facility in the Gulf of Guinea.
Requirements
Bachelor’s degree in Mechanical, Subsea, Pipeline, or Offshore Engineering (Master’s degree is an advantage).
Professional registration (COREN, NSE, ASME, SPE, or equivalent).
Minimum of 15 years work experience with at least 10 years of relevant experience in designing, installing, or upgrading subsea systems within the oil and gas industry with bias in Deepwater.
Minimum of bachelor’s degree in an oil and gas related science discipline.
Good understanding and practical application of applicable Industry standards and codes
Practical experience in working with subsea systems OEMs.
Prior work experience in the Gulf of Guinea with familiarity with the Bonga asset will be highly advantageous.
Ability to communicate, work, interface, interact and influence effectively within a multi-disciplinary team of professionals located globally.
Knowledge of personal and process safety.
Demonstrable project management experience and possibly with certifications if applicable.
Knowledge in use of MS Office tools or similar software. Go Completions use will be an advantage.