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Network Administrator

hace 2 semanas

Barcelona, Barcelona, España SYNLAB International A tiempo completo

As the European market leader in the laboratory diagnostics sector, the SYNLAB group has been operating within a strong inter­national network of laboratory doctors and specialists since 2010. Approximately 24,000 employees in 22 countries dedicate their efforts in laboratory diagnostics to human medicine.

We are looking for a hands-on Senio
r Network Administrato
r 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.

Key Responsibilities:

Architecture & Design

  • Define scalable, secure LAN/WAN/SD-WAN architectures and standards for global sites
  • Produce high-quality HLD/LLD documentation, network diagrams, IP schemas, and security policies
  • Evaluate and select technologies aligned with performance, security, and cost goals

Build & Implementation

  • Install, 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 downtime
  • Maintain and configure SASE platform

Operation & Security

  • Own 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 principles
  • Monitor capacity/performance and proactively remediate risks

Automation & Scripting

  • Build and maintain automation for configuration, compliance checks, and deployments using Python and/or Ansible (e.g., templates, linting, CI/CD pipelines)
  • Develop scripts for backup/restore, inventory, API-based object management (Fortinet/Cisco/Juniper)

Collaboration & Governance

  • Work cross-functionally with Workplace, Cloud, Security, and Site Operations teams
  • Support audits and contribute to policy development and continuous improvement
  • Mentor junior engineers; act as technical escalation point

Required Qualifications:

  • 5–8+ years in enterprise networking with multi-site/global exposure
  • Proven expertise with Fortinet FortiGate and Cisco Firepower (FMC), including policy creation, NAT, VPN (IPsec/SSL), and HA
  • Strong experience with Cisco and Juniper switching (Layer 2/3, routing protocols OSPF/BGP, EVPN/VXLAN nice to have)
  • Solid understanding of network security (segmentation, NAC/802.1X, IDS/IPS, TLS inspection), DNS/DHCP/IPAM, and PKI fundamentals
  • Automation: Proficiency in Python and/or Ansible for network tasks; experience with Git-based workflows
  • Experience operating under ITIL (Change/Incident/Problem) and creating high-quality documentation
  • Excellent communication skills; comfortable in an international environment
  • Language: Professional German and English are required
  • Certifications (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)
  • Juniper: JNCIS-ENT / JNCIP-ENT (JNCIE a plus)
  • Security: CompTIA Security+ or CISSP (plus)

Nice-to-have

  • Familiarity with cloud networking (Azure)
  • Exposure to modern NAC (Cisco ISE, Aruba Clearpass), SASE/ZTNA, and wireless (Cisco Meraki, Juniper Mist AI)
  • Observability tools (e.g., SolarWinds, Zabbix, Grafana)

You can expect from us:

  • A demanding, varied and challenging activity in a successful and fast-growing international company
  • Space for an independent and self-sufficient way of working
  • A friendly and open working atmosphere
  • An expert environment with flat hierarchies and short ways for decisions
  • A dynamic team that is looking forward to meeting you