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Lead Leak Test Commissioning Engineer
full-timeKuala Lumpur

Summary

Location

Kuala Lumpur

Type

full-time

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About this role

OFS Malaysia is a subsidiary of Offshore Frontier Solutions Pte. Ltd. (OFS), a MODEC Group company in Malaysia. Being part of Modec means being the protagonist of a challenging career and being in touch with the latest deep-water production systems, knowing that your career begins in Malaysia, but your talent can take you anywhere in the world.

If you want to be one of the greatest in the market, this is your opportunity!

We are currently looking for talented individuals to join us for below role

Lead Leak Test Commissioning Engineer

We are currently based at KL Eco City, Malaysia.

Lead Commissioning Engineer- Integrity Leak Test

Position Summary

The Integrity Leak Test Engineer is responsible for planning, executing, and supervising Nitrogen-Helium (N2-He) leak testing, Flange Management, Hot Oil Flushing (HOF), and PSV calibration for FPSO projects across construction, mechanical completion, and commissioning phases. The role ensures technical integrity, safe execution, and timely delivery of joint integrity, leak testing, and flushing programs across modules, vendors, and contractors.

Qualifications & Experience

  • Education: Diploma/Bachelor’s in Mechanical Engineering or equivalent.
  • Experience: Minimum 3 FPSO project experience in managing N2-He leak testing and Flange Management scope for projects; exposure to Hot Oil Flushing.

Technical Competencies & Skills

  • Proven experience in N2-He leak testing and Flange Management on FPSO/FSO projects.
  • Knowledge of Pressure Safety Valves (PSV) types, calibration requirements, and set-point control.
  • Understanding of commissioning systems/sub-systems, boundaries, work packs, and ITRs.
  • Hot Oil Flushing know-how: cleanliness criteria (e.g., ISO 4406), flow/temperature control, filter selection, temporary spool-ups, and acceptance testing.
  • Ability to prepare specifications, work packs, and MTOs (bolts, nuts, gaskets, filters, strainers, temporary spools).
  • Well Verse with joint integrity processes, torque/tensioning methods, flange assembly, and controlled tightening sequences.
  • Strong analytical/problem-solving skills; HSE-focused mindset including pressure and high-temperature fluid safety.
  • Proficient in MS Office; experience with digital flange registers and completion systems is an advantage.
  • Effective communication, coordination, and team leadership skills; vendor/contractor supervision experience.

Key Responsibilities

  • Specification & Planning
    • Prepare project N2-He leak test specifications and scope mark-ups aligned with commissioning boundaries.
    • Technical Evaluation, Competency assessment & selection of Sub Contractor providing the Integrity leak test, PSV calibration, HOF, Flange management services
    • Develop leak testing strategies per system/sub-system and establish acceptance criteria.
    • Define HOF strategy, system boundaries, cleanliness criteria, and execution sequence (including ISO code targets, flow/temperature profiles, filtration strategy).
    • Prepare temporaries and define test/flush mediums, instrumentation, and isolation plans.
    • Plan and manage PSV calibration schedules; define readiness prerequisites for testing and flushing.
  • Procedure & Documentation Control
    • Review and approve Contractor procedures for Leak Testing, Flange Management, Hot Oil Flushing, and Responsibility Matrices.
    • Review/approve N2-He leak test packs and HOF work packs, including boundaries, ITRs, P&IDs/PEFS, flushing diagrams, monitoring points, and acceptance records.
    • Establish and maintain a single-source-of-truth Flange Register for all joints across module yards, including pre/post-leak test and pre/post-flushing reinstatement status.
    • Prepare MTOs for replacement materials (bolts, nuts, gaskets), filters, strainers, oil inventory, temporary spools/hoses, heaters, and pumps required for testing, PSV calibration, and HOF.
  • Execution & Supervision
    • Lead on-site N2-He leak test, Flange Management, PSV calibration, and HOF activities with contractors, vendors, and yard teams.
    • Ensure availability and certification of documentation, tools, consumables, calibrated instruments, helium detectors, N2-He skids, heaters, filter skids, and pumps.
    • Coordinate parallel activities safely: multi-train flushing, external heaters and filter stands, off-module flushing where feasible.
    • Verify pre-flushing readiness: pre-clean of pipes/reservoirs, correct oil grade and volume, strainers installed, bypass/temporary spool fit-up, contamination baseline sampling.
    • Monitor and control HOF parameters: flow rate/velocity, bulk oil temperature, differential pressure across filters/strainers, particle counts/ISO codes, and flushing duration until acceptance criteria are met.
    • Enforce adherence to site procedures and PTW; conduct toolbox talks and risk assessments specific to pressure and high-temperature fluids.
    • Coordinate with Construction and MC teams to align readiness and punch closure for both leak testing and flushing.
    • Manage walk-downs, punch list resolution, and completion dossiers for offered systems/sub-systems, including HOF and leak test records and reinstatement certificates.
    • Drive Management of Change (MOC) during engineering and execution phases.
  • Interface & Stakeholder Management
    • Liaise with commissioning, operations, vendor package teams, and module leads to align leak testing and HOF with start-up priorities.
    • Enable early testing and flushing at fabrication yards where feasible, especially for high-pressure/critical systems to reduce post-integration duration.
    • Coordinate with vendor packages for pre-start-up flushing requirements and cleanliness verification.
  • Handover & Start-Up Readiness
    • Minimize untested/witness joints (WJ); categorize WJs by start-up criticality and plan reinstatement verification.
    • Ensure leak-free and cleanliness-compliant status of critical systems for RFSU.
    • Support offshore sweep-tests if required and provide complete turnover packages with leak test and HOF records, calibration certificates, and reinstatement status.

HSEQ Responsibilities

  • Lead HSE planning for leak testing, flange assembly, PSV calibration, and HOF, including task risk assessments (TRA/JSA), SIMOPS reviews, and lifting plans for heavy equipment.
  • Ensure full compliance with company and client HSE policies, applicable standards (e.g., pressure systems regulations, hazardous area rules), and statutory requirements.
  • Implement and enforce PTW, LOTOTO, line break, and pressure test safety protocols; verify isolation plans and pressure/temperature limits before energization.
  • Conduct daily toolbox talks and pre-job briefings; ensure crew competency and certifications (bolting, pressure testing, confined space, hot work).
  • Establish emergency response plans for pressure excursions, leaks, hot oil exposure, and environmental releases; coordinate drills with HSE.
  • Manage chemical and environmental controls: oil handling, spill prevention, waste disposal, filter media management, and correct labeling/MSDS availability.
  • Maintain HSEQ documentation: incident/near-miss reports, NCRs, audit/inspection findings, safety observations, and lessons learned; drive close-out actions.
  • Perform field audits on joint integrity practices (gasket selection, flange face inspection, bolt lubrication, torque/tensioning sequence) and equipment condition (calibration, certification, pressure ratings).
  • Ensure ergonomics and safe material handling during installation/removal of temporaries, hoses, and skids; enforce barricading and exclusion zones.
  • Track HSEQ KPIs: PTW compliance, stop-work participation, zero harm targets, and trend analysis of pressure/high-temperature related hazards.

Other facts

Tech stack
N2-He Leak Testing,Flange Management,Hot Oil Flushing,PSV Calibration,Joint Integrity Processes,Torque/Tensioning Methods,Analytical Skills,HSE Focused Mindset,MS Office Proficiency,Vendor Supervision,Communication Skills,Team Leadership,Specification Preparation,Technical Evaluation,Risk Assessment,Emergency Response Planning

About MODEC

Part of the MODEC Group, MODEC in Singapore provides engineering design and consultancy services to support oil and gas extraction and offshore exploration activities. The Engineering, Procurement, Construction and Installation (EPCI) of Floating Production Storage and Offloading (FPSO) vessels and other floating production systems is handled by MODEC Offshore Production Systems (Singapore) and Offshore Frontier Solutions, the latter a joint venture company formed by MODEC Inc. and Toyo Engineering Corporation in 2022.

A new execution center has been opened in Kuala Lumpur, Malaysia, as part of the company’s expansion plan to continue extending our capabilities and services to support our clients. OFS has also partnered with Toyo India to establish OFS India in Bengaluru, India. OFS India will execute Front End Engineering & Design (FEED) and detailed engineering, and provide procurement support for the topsides of FPSO projects, among its primary business activities.

We aim to safely deliver and operate high-quality, innovative and environmentally friendly floating solutions for the Oil & Energy sector through excellence in execution and cutting-edge technology.

Team size: 1,001-5,000 employees
LinkedIn: Visit
Industry: Oil and Gas

What you'll do

  • The Lead Leak Test Commissioning Engineer is responsible for planning, executing, and supervising leak testing and flushing programs for FPSO projects. This includes ensuring technical integrity and safe execution across various phases of the project.

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Frequently Asked Questions

What does a Lead Leak Test Commissioning Engineer do at MODEC?

As a Lead Leak Test Commissioning Engineer at MODEC, you will: the Lead Leak Test Commissioning Engineer is responsible for planning, executing, and supervising leak testing and flushing programs for FPSO projects. This includes ensuring technical integrity and safe execution across various phases of the project..

Why join MODEC as a Lead Leak Test Commissioning Engineer?

MODEC is a leading Oil and Gas company.

Is the Lead Leak Test Commissioning Engineer position at MODEC remote?

The Lead Leak Test Commissioning Engineer position at MODEC is based in Kuala Lumpur, Kuala Lumpur, Malaysia. Contact the company through Clera for specific work arrangement details.

How do I apply for the Lead Leak Test Commissioning Engineer position at MODEC?

You can apply for the Lead Leak Test Commissioning Engineer position at MODEC directly through Clera. Click the "Apply Now" button above to start your application. Clera's AI-powered platform will help match your profile with this opportunity and guide you through the application process. You can also learn more about MODEC on their website.