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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

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- Define scalable, secure LAN/WAN/SD‑WAN architectures and standards for general 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

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- 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

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- 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

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- Build and maintain automation for conf

📌 Network Administrator (Barcelona)
🏢 Synlab International
📍 Barcelona