> Markdown version of [/jobs/ext/1494332-network-administrator](https://www.wearedevelopers.com/jobs/ext/1494332-network-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Administrator - **Company:** Cerrará Pronto - **Location:** Polinyà, Spain - **Contract:** Permanent contract - **Skills:** IEEE 802.1X, Microsoft Azure, Border Gateway Protocol, Cloud Computing, CompTIA Security+, Dynamic Host Configuration Protocol, Network Address Translation, Domain Name System (DNS), Data-Flow Analysis, Hot Standby Router Protocol, Internet Protocol Security (IP SEC), Intrusion Detection Systems, Virtual Private Networks (VPN), Python (Programming Language), Network Security, Network Architecture, Network Diagrams, Routing, Packet Analyzer, Cisco Nexus Switches, Open Shortest Path First (OSPF), Public Key Infrastructure, Ansible, Zero Trust Network Access, Virtual Local Area Networks, Virtual Router Redundancy Protocols, Wide Area Networks, Zabbix, Transport Layer Security, Identity Services Engine, Grafana, Juniper, Git Flow, SolarWinds (Software), Code Inspection, Fortinet, Api Design, Firepower, Open Network Automation Platform, Cisco Switches, Cisco - **Published:** July 30, 2026 - **Apply:** https://www.adzuna.es/contact-us.html ## About the Role + 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 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 MistAI ) + Observability tools (e.g., SolarWinds, Zabbix, Grafana) ## 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. 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 ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Small, Secure, Interconnected: The next Internet Protocol](https://www.wearedevelopers.com/videos/100062-small-secure-interconnected-the-next-internet-protocol) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Spanish Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/353-spanish-business-culture-and-etiquette) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)