Senior Mechanical Commissioning Engineer

Senior Mechanical Commissioning Engineer

Sabine Pass, Port Arthur, TX, USA

We are seeking a Senior Mechanical Commissioning Engineer with deep, hands‑on experience commissioning LNG liquefaction trains
, including rotating equipment packages centered on Baker Hughes Frame 7 gas turbines driving Mixed Refrigerant (MR) and Propane Refrigeration (PR) compression systems. This role will lead mechanical commissioning planning and execution from pre‑commissioning through start‑up and performance testing, ensuring safe, compliant, and reliable turnover to Operations.

• Lead mechanical commissioning execution for LNG liquefaction trains from system completion through start‑up and stabilization.
• Develop and execute commissioning deliverables: commissioning procedures, check sheets, readiness plans, punch management, turnover dossiers, and system handover packages.
• Provide technical leadership for rotating equipment commissioning
  , including:
• Frame 7 turbine‑driven compression trains
• MR and PR compressor packages
• Auxiliaries (seal systems, lube oil systems, cooling systems, fuel gas, purge/vent systems, instrument air, etc.)
• Plan and supervise mechanical pre‑commissioning activities: flushing/cleaning, leak testing, alignment verification, preservation removal, reinstatement, and mechanical run readiness.
• Interface with OEM/vendor reps and EPC/construction teams to coordinate installation verification, SAT support, and readiness for energization/start.
• Lead equipment inspections and validation of key rotating equipment prerequisites:
• Lube oil cleanliness verification, system flushing acceptance
• Coupling alignment / soft foot checks
• Barring gear operation and verification
• Seal gas and dry gas seal system readiness (as applicable)
• Vibration/condition monitoring readiness and baseline data capture
• Support and/or lead dynamic commissioning and start‑up activities:
• First‑fire support, break‑in runs, trips testing support, and operational proving
• Rotating equipment performance monitoring and troubleshooting during ramp‑up
• Drive safe work execution through hazard identification, commissioning risk reviews, PTW coordination, and compliance with site HSE requirements.
• Manage mechanical punch list resolution (A/B/C classification as applicable), coordinate rework, and verify closeout prior to handover.
• Provide field mentoring to junior engineers and discipline teams; drive consistent commissioning standards and best practices.

• Bachelor’s degree in Mechanical Engineering (or closely related engineering discipline).
• Senior‑level commissioning experience with demonstrated leadership in LNG liquefaction train mechanical commissioning.
• Extensive experience with rotating equipment commissioning for Baker Hughes Frame 7 gas turbine‑driven compression trains.
• Strong familiarity with MR and PR compression equipment
  , auxiliaries, and associated balance‑of‑plant systems.
• Proven ability to develop commissioning procedures and execute commissioning activities in high‑hazard, operationally sensitive environments.
• Strong troubleshooting capability across turbine/compressor train systems, lubricating oil systems, vibration behavior, and start‑up constraints.
• Excellent communication skills and ability to coordinate across Construction, QA/QC, Operations, OEMs, and client stakeholders.

• Prior experience on large‑scale LNG projects (EPC / owner / contractor environment).
• Experience supporting performance testing, reliability run, and transition to operations.
• Familiarity with commissioning systems/tools (turnover management, punch systems, completions databases).
• Working knowledge of applicable industry codes/standards (e.g., API/ASME concepts relevant to rotating equipment and pressure systems).
• Project‑based, field role at LNG construction/commissioning sites.
• Ability to work extended schedules and support critical path start‑up activities (including nights/weekends as needed).
• Must be able to work in industrial environments and comply with site access requirements.