Trouvez votre prochaine offre d’emploi ou de mission freelance Spanning Tree Protocol

Contexte de la missionDans le cadre de l'évolution et de l'exploitation d'un environnement réseau critique, nous recherchons un Network Engineer Senior pour rejoindre une équipe en charge de l'architecture, de la production, du monitoring et de la supervision d'infrastructures réseau à forte disponibilité. Vous évoluerez au sein d'un environnement international exigeant, supportant des activités à forts enjeux de performance, avec des contraintes élevées en matière de disponibilité, de sécurité et de faible latence. L'infrastructure couvre plusieurs campus, data centers et sites d'hébergement stratégiques. Vos missionsArchitecture & Design RéseauConcevoir et documenter des architectures réseau pour des environnements Data Center, Campus et infrastructures critiques. Produire les documents de design détaillés et les recommandations techniques associées. Participer aux choix d'architecture autour des protocoles et technologies suivants : OSPF, BGP, VXLAN-EVPN, DWDM, Multicast, NAT et architectures Low Latency. Déploiement & Évolution des InfrastructuresConfigurer et provisionner les équipements et services réseau. Piloter les opérations de migration, de mise en production, d'upgrade et de cut-over. Garantir la continuité de service et limiter les impacts lors des changements techniques. Exploitation & SupervisionAssurer le maintien en conditions opérationnelles d'une infrastructure réseau fonctionnant 24/7. Superviser les performances et la disponibilité du réseau à l'aide d'outils de monitoring. Analyser les incidents, conduire les investigations techniques et piloter les actions de remédiation. Participer aux revues post-incident et aux démarches d'amélioration continue. Amélioration ContinueDéfinir et suivre les indicateurs de performance et de qualité de service : disponibilité, latence, jitter, perte de paquets. Être force de proposition sur les évolutions d'architecture, les politiques de routage et les outils de supervision. Contribuer à l'optimisation globale des infrastructures réseau. Collaboration & DocumentationTravailler en étroite collaboration avec les équipes infrastructure, sécurité et applicatives. Maintenir à jour la documentation technique et les schémas d'architecture réseau. Participer à la coordination des activités techniques avec les différentes parties prenantes. Gestion des IncidentsParticiper à l'astreinte tournante de l'équipe. Intervenir sur les incidents réseaux conformément aux processus en place.

6 months DV Cleared London 5 days onsite - fully onsite You will lead a team of network engineers responsible for producing high-quality network designs and engineering solutions. Acting as the technical authority for network engineering, you will ensure solutions align with enterprise standards, security requirements, operational needs, and long-term technology strategy. This is a hands-on leadership role requiring a balance of technical design capability, operational excellence, stakeholder engagement and people development. What you'll be doing Lead the design of network solutions. Produce and review high-level and low-level network designs. Define network architectures that meet availability, scalability, resilience, security and supportability requirements. Ensure network designs align with enterprise architecture standards and design patterns. Drive network lifecycle planning including technology refresh, capacity growth and platform evolution. Perform technical assurance and design governance activities. Review solution designs produced by engineers, suppliers and third-party partners. Ensure operational support requirements are incorporated into solution designs from inception. Collaborate with solution architects and security architects to create integrated end-to-end solutions. Balance technical, commercial and operational considerations when making design decisions. Lead technical investigations, proof of concepts and technology evaluations. Establish network design principles, standards, blueprints and reference architectures. Skills and experience Design & Architecture Extensive experience designing complex enterprise network solutions. Strong understanding of network architecture principles. Experience producing and reviewing High-Level Designs (HLDs) and Low-Level Designs (LLDs). Ability to translate business requirements into technical network solutions. Experience leading design governance and technical assurance activities. Understanding of NIST and CIS security controls. Demonstrable experience across several of the following: Enterprise routing and switching Core, distribution and access layer design. Layer 2 and Layer 3 network design. Spanning Tree Protocol (STP, RSTP, MST). Link aggregation technologies (LACP, Port Channels). First-hop redundancy protocols including HSRP, VRRP or GLBP. Dynamic routing protocols including OSPF or EIGRP. Data Centre Networking Spine-and-leaf architectures. VXLAN overlays. VMware NSX. East-west traffic optimisation. Network security and firewalling Firewall architecture and policy design. Segmentation and micro-segmentation. Intrusion Detection and Prevention Systems. Palo Alto. Cisco Secure Firewall. Network automation (Ansible, Terraform, API-driven automation). Monitoring and observability solutions. Please send your latest CV Due to the nature and urgency of this post, candidates holding or who have held high level security clearance in the past are most welcome to apply. Please note successful applicants will be required to be security cleared prior to appointment which can take a minimum 18 weeks. LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance. An award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over multiple years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience. Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.