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Network Administrator

hace 2 semanas


Barcelona, España SYNLAB Vet A tiempo completo

We are looking for a hands‑on Senior Network Administrator to design, implement, and operate our enterprise network across multiple international sites. The ideal candidate brings deep expertise in next‑gen firewalls (Fortinet & Cisco Firepower), enterprise switching (Cisco & Juniper), and network automation. You will define network architectures, harden security, streamline operations via scripting.¿Interesado en saber más sobre este trabajo? Desplácese hacia abajo y descubra qué habilidades, experiencia y cualificaciones académicas se necesitan.ResponsibilitiesDefine scalable, secure LAN/WAN/SD-WAN architectures and standards for calculations sitesProduce high-quality HLD/LLD documentation, network diagrams, IP schemas, and security policiesEvaluate and select technologies aligned with performance, security, and cost goals.Build & ImplementationInstall, configure, and optimize firewalls: Fortinet FortiGate and Cisco Firepower (including FMC, policy objects, IPS/IDS, SSL inspection, HA clustering, SD‑WAN)Configure enterprise switches: Cisco Catalyst/Nexus and Juniper EX/QFX (VLANs, STP, LAG/MLAG, VRRP/HSRP, QoS, port-security, 802.1X)Implement site rollouts, migrations, and cutovers with minimal downtimeMaintain and configure SASE platformOperation & SecurityOwn Level 3 incident/problem management; perform advanced troubleshooting (packet captures, flow analysis, logs)Maintain firewall and switch gold configs, rule hygiene, and change control (ITIL)Ensure compliance with security baselines, segmentation, and zero‑trust principlesMonitor capacity/performance and proactively remediate risksAutomation & ScriptingBuild and maintain automation for configuration, compliance checks, and deployments using Python and/or Ansible (e.g., templates, linting, CI/CD pipelines)ينيDevelop scripts for backup/restore, inventory, API‑based object management (Fortinet/Cisco/Juniper)Work cross‑functionally with Workplace, Cloud, Security, and Site Operations teamsSupport audits and contribute to policy development and continuous improvementMentor junior engineers; act as technical escalation pointQualificationsRequired Qualifications5–8+ years in enterprise networking with multi‑site/global exposureProven expertise with Fortinet FortiGate and Cisco Firepower (FMC), including policy creation, NAT, VPN (IPsec/SSL), and HAStrong experience with Cisco and Juniper switching (Layer 2/3, routing protocols OSPF/BGPseparator/EVPN/VXLAN nice to have)Solid understanding of network security (segmentation, NAC/802.1X, IDS/IPS, TLS inspection), xsgfvud DNS/DHCP/IPAM, and PKI fundamentalsAutomation: Proficiency in Python and/or Ansible for network tasks; experience with Git‑based workflowsExperience operating under ITIL (Change/Incident/Problem) and creating high‑quality documentationExcellent communication skills; comfortable in an international environment.Language:atr Professional English are requiredCertifications (one or more of the following)Fortinet: NSE 4/5/6 (NSE 7 is a plus)Cisco: CCNP Enterprise or CCNP Security (CCIE a plus)Security: CompTIA Security+ or CISSP (plus)Nice‑to‑HaveFamiliarity with cloud networking (Azure)Exposure to modern furnish (Cisco ISE, Aruba Clearpass), SASE/ZTNA, and wireless (Cisco Meraki, Juniper MistAI )Observability tools (e.g., SolarWinds, Zabbix, Grafana)#J-18808-Ljbffr