{"id":1308422,"url":"https://alion.io/job/synlab-network-administrator-mfd-2","title":"Network Administrator (m/f/d)","company":{"id":2154365,"name":"SYNLAB","domain":"synlab.com","url":"https://alion.io/company/synlab-com","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"B","score":75,"open_postings":31,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-09-28T05:45:00Z"}},"role":"Networking","role_family":"Networking","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":47000,"max_usd":116000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":359},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"BGP","optional":false},{"name":"CI/CD","optional":false},{"name":"FortiGate","optional":false},{"name":"ITIL","optional":false},{"name":"OSPF","optional":false},{"name":"Python","optional":false},{"name":"VPN","optional":false},{"name":"Zero Trust","optional":false},{"name":"Azure","optional":true},{"name":"DHCP","optional":true},{"name":"DNS","optional":true},{"name":"Git","optional":true},{"name":"Grafana","optional":true},{"name":"PKI","optional":true},{"name":"Zabbix","optional":true}],"status":"live","first_seen_at":"2025-12-17T16:01:41Z","employer_posted_date":"2025-12-17","last_verified_at":"2026-09-28T23:44:26Z","board_verified":true,"closed_at":null,"days_open":285,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":284},"description":"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.\n Architecture & Design\nDefine scalable, secure LAN/WAN/SD-WAN architectures and standards for global sites\nProduce high-quality HLD/LLD documentation, network diagrams, IP schemas, and security policies\nEvaluate and select technologies aligned with performance, security, and cost goals.\nBuild & Implementation\nInstall, configure, and optimize firewalls: Fortinet FortiGate and Cisco Firepower (including FMC, policy objects, IPS/IDS, SSL inspection, HA clustering, SD-WAN)\nConfigure enterprise switches: Cisco Catalyst/Nexus and Juniper EX/QFX (VLANs, STP, LAG/MLAG, VRRP/HSRP, QoS, port-security, 802.1X)\nImplement site rollouts, migrations, and cutovers with minimal downtime\nMaintain and configure SASE platform\nOperation & Security\nOwn Level 3 incident/problem management; perform advanced troubleshooting (packet captures, flow analysis, logs)\nMaintain firewall and switch gold configs, rule hygiene, and change control (ITIL)\nEnsure compliance with security baselines, segmentation, and zero-trust principles\nMonitor capacity/performance and proactively remediate risks\nAutomation & Scripting\nBuild and maintain automation for configuration, compliance checks, and deployments using Python and/or Ansible (e.g., templates, linting, CI/CD pipelines)\nDevelop scripts for backup/restore, inventory, API-based object management (Fortinet/Cisco/Juniper)\nCollaboration & Governance\nWork cross-functionally with Workplace, Cloud, Security, and Site Operations teams\nSupport audits and contribute to policy development and continuous improvement\nMentor junior engineers; act as technical escalation point\n Required Qualifications\n5-8+ years in enterprise networking with multi-site/global exposure\nProven expertise with Fortinet FortiGate and Cisco Firepower (FMC), including policy creation, NAT, VPN (IPsec/SSL), and HA\nStrong experience with Cisco and Juniper switching (Layer 2/3, routing protocols OSPF/BGP, EVPN/VXLAN nice to have)\nSolid understanding of network security (segmentation, NAC/802.1X, IDS/IPS, TLS inspection), DNS/DHCP/IPAM, and PKI fundamentals\nAutomation: Proficiency in Python and/or Ansible for network tasks; experience with Git-based workflows\nExperience operating under ITIL (Change/Incident/Problem) and creating high-quality documentation\nExcellent communication skills; comfortable in an international environment.\nLanguage: Professional English are required\nCertifications (one or more of the following)\nFortinet: NSE 4/5/6 (NSE 7 is a plus)\nCisco: CCNP Enterprise or CCNP Security (CCIE a plus)\nJuniper: JNCIS-ENT / JNCIP-ENT (JNCIE a plus)\nSecurity: CompTIA Security+ or CISSP (plus)\nNice-to-Have\nFamiliarity with cloud networking (Azure)\nExposure to modern NAC (Cisco ISE, Aruba Clearpass), SASE/ZTNA, and wireless (Cisco Meraki, Juniper MistAI )\nObservability tools (e.g., SolarWinds, Zabbix, Grafana)","description_format":"text","description_chars":3240,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Medical Laboratories"],"lifecycle":[{"event":"open","at":"2026-09-26T15:02:39Z"}],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.17,"p_room":0.28,"age_days":284,"expected_fill_days":31,"reasons":["conf:9","stale_co","win:tail","crowd:"],"computed_at":"2026-09-28T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/synlab-network-administrator-mfd-2","json_url":"https://alion.io/job/synlab-network-administrator-mfd-2.json","meta":{"generated_at":"2026-09-29T02:45:40Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2472,"day_limit":5000,"remaining_today":2528,"minute_limit":60,"resets_at":"2026-09-30T00:00:00Z"}}}