Job DescriptionWe are looking for a Commissioning Supervisor to join the commissioning team of a prototype plant dedicated to testing liquid hydrogen (LH2) liquefaction technologies for an R&D organization. You will support the start-up and commissioning phase in a shift-based organization (3x8), working within an existing team and contributing to safe, structured, and transparent execution.As part of the start-up phase, you will be deployed on shift to:Support commissioning and start-up activities on a cryogenic hydrogen liquefaction pilot/prototypeOperate in a team setting where your role may involve supervising pilot operations or ensuring minimal-operation monitoring, depending on the shift position and plant statusContribute to commissioning readiness, functional testing, and safe ramp-up to stable operationsThe role is performed in a shift rhythm (3x8) with a 6 days out of 7 organization.The main tasks and duties are:Supervise and/or support commissioning and start-up activities for a cryogenic LH2/H2 unitPerform and document functional checks, loop checks support, and commissioning tests (as applicable)Execute tuning and troubleshooting during start-up, including diagnosis of instrumentation/electrical/control issuesRead and use engineering documentation effectively (P&IDs, wiring diagrams, loop diagrams, etc.)Interface with the commissioning team and participate actively in coordination and follow-up meetingsEnsure strict compliance with safety and operational rules during all start-up activitiesThe expected deliverables are: Daily activity reports recorded in the shift logbook / “cahier de poste” detailing:tasks performedissues encounteredcorrective actions / solutions implementedCommissioning documentation kept complete and up to date, including test reports and associated recordsActive participation in coordination routines and progress trackingDelivery against agreed schedule objectives and commissioning prioritiesRequirements2–5 years of experience in Instrumentation / Operations / Maintenance, preferably in industrial commissioning/start-up environmentsProven ability to work in start-up / commissioning teams and in shift operationsCryogenic unit start-up: expert-level capabilityTuning & troubleshooting: expert-level capabilityHydrogen unit start-up: confirmed experienceStrong ability to read and interpret P&IDs, wiring diagrams, loop diagrams and related documentationElectrical fundamentals and practical field understanding (confirmed level)Strong safety culture and methodical execution mindsetClear reporting habits and discipline in documentationAble to integrate quickly into an existing team and operate effectively under shift conditionsHands-on, field-oriented, and comfortable with dynamic start-up constraintsBenefits