Lead Structural Design Engineer [Offshore Project]

Role PurposeLead and manage all structural engineering activities for the Offshore Project at Umm Shaif Super Complex USSC. The role ensures structural integrity constructability and compliance with ADNOC Offshore standards for new equipment installations, skids, pipe supports and modifications on existing live offshore structures. The Lead Structural Engineer will coordinate with Engineering Subcontractors, OEMs, Marine teams and ADNOC Offshore Engineering & Operations from FEED through EPC installation and commissioning.Structural Discipline Technical Authority (Owner Engineer)Serve as the primary authority for all structural engineering activities related to IA/PA upgrades ensuring adherence to ADNOC Structural Engineering Standards, ISO API RP2A, AISC, BS and offshore structural codes, ADNOC offshore brownfield requirements, Project Basis of Design and FEED integrity, structural integrity and safety requirements for all package equipment, and provide clear oversight and final approval on structural discipline matters.Structural Review of Package Equipment IntegrationLead structural engineering governance for integrating instrument air compressors, plant air compressors, twin tower dryers, IA/PA air receivers, associated skid structures and platforms, lifting frames, base frames and support steel.Verify skid loading static & dynamic reactionsCheck structural adequacy of supporting platformsValidate vendor structural information (CG weights loads)Review equipment baseplates foundation pad/skid supportsEnsure offshore environmental load conditions are consideredApprove structural reinforcement requirementsBrownfield Structural Assessment & Tie-In EngineeringAssess existing deck load capacityReview as-built drawings, laser scans & survey dataIdentify reinforcement needs for increased loadsCheck space constraints & structural conflictsEnsure safe access & maintenance clearanceReview EPC brownfield method statementsVerify tie-in locations for new supports and routingConfirm deck rating suitability for compressors/dryersSupport safe brownfield execution under SIMOPS and offshore constraints.Structural Analysis Review & VerificationGlobal & local Finite Element AnalysisDeck load & punching shear checksFatigue analysis (if applicable)Vibration assessments for rotating equipmentImpact load/accidental load checksDynamic load & equipment vibration transmissionWind wave & seismic load evaluation for offshoreEnsure all structural calculations meet ADNOC safety factors and design criteria.3D Model Review & Multidiscipline IntegrationEquipment placement & support framingClearances access and maintenance envelopesStructural element clashes with piping/EI/traysCable tray and piping penetrationsLocation and routing of additional supportsStructural stability & stiffness checksParticipate in 30% / 60% / 90% EPC model review sessions.Lifting Rigging & Installation EngineeringReview lifting plans & rigging studiesValidate crane capacity rigging points padeyesReview temporary lifting frames or lifting lugsEnsure compliance with offshore lifting standardsVerify transport & installation load conditionsSupport safe mechanical installation offshore.Structural Safety & Process Integrity SupportHAZID HAZOP (structural interface actions) SIMOPS reviews ENVIDFire Protection & Blast Loading (if applicable)Ensure structural integrity is maintained during all phases of EPC.Review of EPC Structural DeliverablesStructural drawings (GAs details reinforcements)Fabrication drawingsWelding maps WPS/PQR/NDE requirementsStructural MTOsTie-in support drawingsOffshore installation plansStructural demolition & modification drawingsEnsure alignment with ADNOC formats and numbering.QA/QC & Fabrication OversightReview EPC QCP/ITP for structural fabricationValidate material traceability and weld qualityReview NDT plans (UT RT MT PT)Monitor fabrication progress (if required)Approve structural works before delivery offshoreConstruction & Commissioning Support (Structural Discipline)Structural element installation guidanceField modifications and clash resolutionPunch-list preparation and closureVerification of structural stability after installationAs-built validation & final acceptanceDocumentation Reporting & ComplianceMaintain structural discipline registers (load sheets, analyses, GA tracking)Review weekly EPC progress and structural updatesTrack TQs deviations, NCRs & change requestsEnsure full compliance with ADNOC document control requirementsVerify final as-built structural documentationKey DeliverablesStructural design calculations and assessment reportsEquipment foundation and modification drawingsLifting and installation support documentsAs-built structural drawings and recordsQualificationsBachelor’s Degree in Civil / Structural EngineeringADNOC Offshore approval or eligibility mandatoryOffshore structural design training preferredChartered Engineer status (PE / CEng) advantageousAdditional InformationMinimum Experience: 15 Years (Oil & Gas EP