Principal Engineer – Instrument

Petrofac is a leading international service provider to the energy industry, with a diverse client portfolio including many of the world’s leading energy companies.

We design, build, manage and maintain infrastructure for our clients. We recruit, reward, and develop our people based on merit regardless of race, nationality, religion, gender, age, sexual orientation, marital status, or disability. We value our people and treat everyone who works for or with Petrofac fairly and without discrimination.

The world is re-thinking its energy supply and energy security needs, planning for a phased transition to alternative energy sources. We are here to help our clients meet these evolving energy needs.

This is an exciting time to join us on this journey.   

We support flexible working requests and have adopted a hybrid approach for most of our office-based roles. We ask employees to be present in the office at least three days per week.

Are you ready to bring the right energy to Petrofac and help us deliver a better future for everyone?

JOB TITLE: Principal Engineer – Instrument

KEY RESPONSIBILITIES:

• Review Invitation to Bid (ITB) documents submitted during the proposal stage, issue inquiry requisitions, evaluate techno-commercial vendor offers, and prepare equipment, material, and man-hour estimates.  
• Review contract requirements for project execution and organize the preparation of the Technical Document Register (TDR). Identify requirements and scope of work; review specifications such as Process Data Sheets (PDS), Piping Material Specifications (PMS), Piping & Instrumentation Diagrams (P&IDs), Plot Plans, General Arrangement (GA) Drawings, Philosophies, Area Classification Drawings, Fire and Gas Detector Layouts, and other relevant documents.  
• Establish contract review criteria, resolve discrepancies and deviations from the original proposal by raising technical queries with projects/clients. 
• Conceptualize and verify the most optimal work route. Define the scope of work/supply and plan/schedule engineering activities and manpower resources accordingly. Identify and quantify the total number of engineering deliverables, allocate man-hours, and establish delivery formats, schedules, and other requirements for project execution.  
• Coordinate with project and planning teams on schedules, set target completion dates, and ensure adherence to timelines. 
• Develop manpower charts and schedules, recommend, assign, and distribute manpower for engineering activities within budgeted man-hours. Suggest cost-effective measures to optimize manpower costs.  
• Oversee the preparation of equipment and material specifications, data sheets, and detailed engineering calculations. Supervise the creation of documents including the design basis, instrument index, input/output lists, bills of quantities, block diagrams, equipment/system specifications, cable routings, control room layouts, cause and effect diagrams, control loop and safety narratives, loop diagrams, functional logic diagrams, termination diagrams, installation hook-up drawings, instrument plot plans, and other engineering deliverables.  
• Provide inputs for plot plan preparation, organize the issuance of engineering drawings for inter-discipline checks (IDC), and coordinate with other engineering disciplines to ensure data integration.  
• Direct the preparation of technical inquiry requests (Inquiry Requisitions) to vendors, participate in the technical evaluation of vendor bids, and provide guidance for Technical Bid Evaluations (TBE). Review vendor drawings/documents and ensure design calculations meet client specifications and budget constraints.  
• Coordinate the preparation of purchase requisitions for procuring equipment and materials, ensuring timely acquisition within budget.  
• Interface and regularly meet with clients and vendors, conduct internal team meetings, and ensure project progress aligns with schedules, man-hour allocations, and budgetary constraints. Collaborate with project and planning departments on schedule-related matters and update TDR progress reports using PETROCEPT software.  
• Oversee Material Take-Off (MTO) activities, identify discrepancies, and implement corrective actions as necessary.  
• Participate in HAZOP meetings and conduct SIL studies in collaboration with clients and representatives of other engineering disciplines.  
• Coordinate with Quality Assurance for compliance with ISO quality procedures. Facilitate internal and client audit processes and address audit-related engineering system queries.  
• Provide technical support and guidance to construction and commissioning teams, including startup assistance when required.  
• Conduct employee performance evaluations, establish performance criteria, identify strengths and weaknesses, and recommend training and development initiatives.  
• Lead multiple project activities as a group leader, liaising with designated lead engineers and direct supervisors as needed.  
• Perform additional duties as directed by the direct supervisor.  

ESSENTIAL QUALIFICATIONS AND SKILLS:

• Bachelor’s degree in engineering (preferably Electrical or Instrumentation) or a related discipline.  
• Minimum of 8–10 years of relevant experience in engineering project execution, including familiarity with ITB reviews, technical document preparation, vendor evaluation, and procurement processes.  
• In-depth knowledge of Process Data Sheets (PDS), Piping & Instrumentation Diagrams (P&IDs), Technical Bid Evaluations (TBE), Material Take-Off (MTO) activities, and HAZOP/SIL studies.  
• Strong ability to plan, schedule, and coordinate multidisciplinary engineering activities, ensuring adherence to budgets, timelines, and quality standards.  
• Proficient in engineering software and tools such as PETROCEPT, along with familiarity with ISO quality compliance procedures and documentation standards.  

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