Network Administrator (m/f/d)

SYNLAB International; Barcelona; Sur place; EUR 65 000 - 95 000; Plein temps

Avantages offerts par ce poste

Challenging work in a fast-growing company

Friendly working atmosphere

Opportunities for independent working

Résumé du poste

A leading laboratory diagnostics company based in Barcelona is seeking a Senior Network Administrator to design and implement enterprise networks across international sites. The role requires expertise in Fortinet and Cisco technologies, along with strong automation skills in Python and Ansible. The ideal candidate will work closely with multiple teams and ensure compliance with security protocols. This position offers a dynamic work environment in a rapidly growing company.

Qualifications

• 5–8+ years in enterprise networking with multi-site/global exposure.
• Experience with Fortinet FortiGate and Cisco Firepower.
• Strong experience with Cisco and Juniper switching.
• 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; experience with Git 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 required.
• Certifications (one or more): Fortinet NSE 4/5/6 (NSE 7 plus), Cisco CCNP Enterprise or CCNP Security (CCIE plus), Security: CompTIA Security+ or CISSP (plus)

Responsabilités

• Define scalable LAN/WAN/SD-WAN architectures.
• Install, configure, and optimize firewalls.
• Perform advanced troubleshooting and incident management.
• 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
• 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: Build and maintain automation for configuration, compliance checks, and deployments using Python and/or Ansible
• Develop scripts for backup/restore, inventory, API‑based object management (Fortinet/Cisco/Juniper)
• 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

Connaissances

Expertise in Fortinet FortiGate

Cisco Firepower knowledge

Network automation proficiency

Excellent communication skills

Ansible

ITIL

Network security

Documentation

German language

English language

Formation

Professional German and English

Outils

Python

Ansible

Cisco Catalyst/Nexus

Juniper EX/QFX

Description du poste

Join to apply for the Network Administrator (m/f/d) role at SYNLAB International

As the European market leader in laboratory diagnostics, the SYNLAB group operates internationally since 2010 with about 24,000 employees dedicated to human medicine.

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, and streamline operations via scripting.

Key Responsibilities

• 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
• Develop scripts for backup/restore, inventory, API‑based object management (Fortinet/Cisco/Juniper)
• 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), 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; experience with Git 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 required
• Certifications (one or more): Fortinet NSE 4/5/6 (NSE 7 plus), Cisco CCNP Enterprise or CCNP Security (CCIE 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 (SolarWinds, Zabbix, Grafana)

What We Offer

• 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!