Duration: 6 months, renewableLocation: Massy, occasional travel to EragnyMinimum 6 years of experience after a Master's degree (Bac+5)Fluent English (daily communication)Network & Security Engineer or ArchitectDynamic, operational profile with field experience (equipment racking)Autonomous, analytical, and able to explain complex concepts clearlySignificant experience in deployments (recent, long-term, industrial IT environment)Not necessarily an expert, but strong technical skills, quick reflexes, and good communication skillsExpertise required95% Build5% Run (Level 3)Core SkillsRoutingSwitchingFirewallingSegmentationTechnologies / EquipmentHPECisco (Catalyst, Nexus, Wi-Fi, ISE)UcopiaPalo AltoForcepointNACStormshieldInfobloxSD-WANZscalerMain ResponsibilitiesQualify complex requests and coordinate responses with the project teamDesign, adapt, and size network componentsSupport the project during the Validation of Acceptance Testing (VABE) and Validation of Service (VSR) phases for handover to the managed service provider's operational teamPerform workload estimates and schedules for architecture and deployment projectsParticipate in architecture validation committees and ensure complianceDecommission obsolete network equipment and integrate new equipmentContribute, in support of an architect, to the functional and technical analysis of new componentsParticipate in the standardization of network and security solutions across the groupWork on the scoping, Proof of Concept (POC), integration, and Operations support phasesEnsure consistency and updates Operational documentationSuggest improvements to network service performanceDefine best practices for network/security system managementProvide advice, assistance, information, training, and alerts on relevant technologies