Principal Design Engineer - Mechanical / Piping at International Energy Services Limited (IESL)

International Energy Services Limited (IESL) - Incorporated in 1990, International Energy Services Limited (IESL) is a pan-African energy services company dedicated to delivering top-tier engineering and technical support services within the energy sector. Our operations extend beyond Nigeria to encompass other African countries, including Ghana, Mozambique, and Equatorial Guinea. Our primary aim is to sustain our standing as a top-three performer within our designated market segments. IESL has established enduring technical collaborations spanning more than 15 years with esteemed partners, Doris Engineering and STAT Marine. Furthermore, we have cultivated robust proficiency in supply chain management through strategic partnerships with various Original Equipment Manufacturers (OEMs). IESL proudly serves a comprehensive portfolio of International Oil Companies (IOCs).

We are recruiting to fill the position below:

Job Title: Principal Design Engineer - Mechanical / Piping

Location: Port Harcourt, Rivers
Employment Type: Contract

Job Description

• The Principal Design Engineer – Mechanical/Piping will lead and manage the design and engineering of mechanical and piping systems for oil and gas projects. 
• This includes responsibility for engineering integrity, adherence to applicable codes and standards, and coordination of multi-disciplinary inputs.
• The role plays a critical part in delivering safe, efficient, and cost-effective solutions across FEED, EPC, and brownfield modification projects.

Responsibilities
Design Engineering Leadership:

• Lead the mechanical/piping design team across conceptual, FEED, detailed engineering, and EPC phases.
• Prepare and review engineering deliverables including:
• Piping and Instrumentation Diagrams (P&IDs)
• General Arrangement (GA) drawings
• Isometrics and support details
• Equipment layout and datasheets
• Line lists, valve lists, and tie-in schedules
• Conduct pipe stress analysis, pressure drop calculations, and thermal expansion analysis using CAESAR II or equivalent tools.
• Ensure proper selection of materials, valves, piping components, and supports in line with process requirements and Nigerian/International codes (ASME, API, ISO, NACE, etc.).

Standards & Compliance:

• Ensure all designs are compliant with:
• Nigerian Oil & Gas Industry Content Development (NOGICD) guidelines
• Department of Petroleum Resources (DPR) regulations
• Relevant international codes and standards (ASME B31.3, API 610/650, etc.)
• Client-specific specifications and quality procedures

Project Coordination & Execution:

• Coordinate with process, civil / structural, instrumentation, and electrical teams for integrated project delivery.
• Interface with vendors and third-party contractors to ensure engineering specifications are met.
• Participate in design reviews, model reviews (3D), HAZOPs, and constructability assessments.
• Ensure timely delivery of engineering documents and support project controls in schedule and cost tracking.

Team Leadership & Mentorship:

• Supervise and mentor junior engineers and designers.
• Allocate design tasks and ensure quality, accuracy, and completeness of deliverables.
• Conduct internal technical audits and peer reviews.
• Promote HSE best practices in all engineering activities.

Client & Stakeholder Management:

• Serve as the primary technical contact for clients on mechanical/piping scope.
• Attend client meetings, provide technical presentations, and support project proposals or bidding efforts.
• Prepare and submit technical reports, method statements, and design philosophies.

Requirements

• Education: B.Eng / B.Sc. in Mechanical Engineering from an accredited university (M.Sc. an advantage).
• Professional Certification: COREN registration is mandatory; membership of NSE, ASME, or API is a plus.
• Experience: Minimum 8 years of relevant experience in oil and gas design engineering, with at least 5 years in a lead or principal engineering role on major projects in Nigeria or West Africa.

Software Proficiency:

• CAESAR II (Pipe Stress)
• AutoCAD / Plant 3D / PDMS / E3D / Navisworks
• Microsoft Office, Bluebeam or other markup tools

Skills & Competencies:

• Strong understanding of oil & gas field development, pipelines, FPSOs, flow stations, refineries, and modular skids.
• Deep expertise in mechanical equipment design and piping layout best practices.
• Leadership and team-building skills with a focus on mentorship.
• Excellent written and verbal communication.
• Strong analytical and problem-solving ability.
• Ability to work in multi-cultural, multi-disciplinary project teams.

Application Closing Date
30th May, 2025.

How to Apply
Interested and qualified candidates should send their CV to: recruitment@ieslglobal.com using the job Title as the subject of the mail.