Systems, Network and IT Security Engineer (M/F)
Mission context: You will administer the SDN network infrastructure of a large Parisian public authority, built on Cisco ACI technology: approximately 100 Nexus 9K switches (leafs and spines), 90% installed at the main Paris site. You are the sole referent for this scope and an ex officio member of the contract steering committee. On-call duties: 1 week out of 4, from Friday 12:00 PM to the following Friday (approximately 12 weeks/year).
Your daily missions: Routine administration of the Cisco ACI fabric: tenants, application profiles, contracts, filters Management of level 2 and 3 incidents on the network infrastructure Steering evolutions: deployment of new logical architectures, Multi-Pod and Multi-Site interconnectivity Lifecycle: update campaigns for APIC controllers (software) and Leafs and Spines switches (firmware) Securing and hardening configurations Creation, modification, and deletion of port settings Participation in Disaster Recovery Plan (DRP) failover tests Non-business hours (HNO) on-call duty (Friday 12:00 PM to the following Friday 12:00 PM) with remote or on-site interventions Cross-training the N3 Referent on Cisco ACI basics (for on-call backup) Technical documentation and skills transfer to the client's team
Required technical skills: Confirmed Cisco ACI expertise: APIC, Nexus 9K Leafs and Spines, fabric design Mastery of SDN concepts, network segmentation, micro-segmentation In-depth knowledge of the VXLAN, BGP-EVPN protocol Notions of network cybersecurity (filtering, contracts, policies) Monitoring tools: Spectrum, Zabbix, Centreon Analysis tools: Kibana, ELK stack Python scripting for automation
Desired profile: 7 years or more of experience in network engineering, including at least 3 years on Cisco ACI in production Cisco certifications strongly appreciated: CCNP DataCenter (DCACI or DCACIA), CCIE Data Center (top of the range) Large-scale datacenter experience (more than 50 switches) Ability to be on-call and availability for critical incidents Fluent technical English
What we offer: On-call bonus of €500 per on-call week (flat rate) Investment in continuous Cisco training covered (certification renewal) Complete and stimulating ACI environment (approximately 100 switches) Meal vouchers €9 (employer share €4.50) Company health insurance €40/month (employer share €20/month) Navigo Pass reimbursed at 50% or personal vehicle mobility bonus Mandatory executive protection insurance covered Occupational medicine included