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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Administrator - **Company:** Gmv - **Location:** Madrid, Spain (Remote available) - **Contract:** Temporary contract - **Skills:** Border Gateway Protocol, Computer Engineering, Dynamic Host Configuration Protocol, Linux, Network Address Translation, Domain Name System (DNS), Intrusion Detection Systems, Virtual Private Networks (VPN), Network Security, Windows Servers, Nagios, Network Architecture, Networking Cables, Network Diagrams, Routing, Network Administration, Open Shortest Path First (OSPF), Simple Network Management Protocols, TCP/IP, Wireshark, Virtual Local Area Networks, Working Model 2D, Zabbix, Network Routers, Computer Networking Systems, Firewalls (Computer Science), Information Technology - **Published:** September 16, 2026 - **Apply:** https://www.buscojobs.com.es/network-administrator-en-madrid-ID-370556440 ## About the Role For this position, we are looking for professionals with expertise in Network Administration, Telecommunications Engineering, Computer Engineering, or Industrial Engineering, who are looking for a stable environment in which to grow professionally and have at least 4 years of experience in the administration of communications infrastructures and IT systems. Requirements Strong knowledge of TCP/IP, routing, switching, VLANs, NAT, and VPNs. Experience with OSPF, basic BGP, DNS, and DHCP protocols. Administration of Linux and Windows Server environments. Experience with monitoring and analysis tools such as Wireshark, Nagios/Zabbix, and SNMP. Knowledge of network security, including firewalls, ACLs, and IDS/IPS. Experience working with routers, switches, and network cabling. Ability to create network diagrams and technical documentation. ## Description Are you looking to take on new challenges without giving up the stability of a well?established technology company?At GMV, we are expanding ourDefence teamsto support projects involving the deployment, configuration, and administration of IT infrastructures that handle classified information, contributing to mission?critical environments with the highest standards of security and availability.What challenge will you be taking on?As part of our team, you will beinvolved in the deployment, configuration, and administration of network infrastructures and IT systemsthat manage classified information, ensuring their availability, performance, and security in highly critical technology projects.You will administer and configureTCP/IP-based networks, including routing, switching, VLANs, NAT, and VPNs ; manage services such asDNS and DHCP ; monitor infrastructure using specialised tools; collaborate in the implementation of cybersecurity measures; and produce technical documentation and network architecture diagrams.What do we need in our team?For this position, we are looking for professionals with expertise in Network Administration, Telecommunications Engineering, Computer Engineering, or Industrial Engineering, who are looking for a stable environment in which to grow professionally and haveat least 4 years of experiencein the administration of communications infrastructures and IT systems.RequirementsStrong knowledge of TCP/IP, routing, switching, VLANs, NAT, and VPNs.Experience with OSPF, basic BGP, DNS, and DHCP protocols.Administration of Linux and Windows Server environments.Experience with monitoring and analysis tools such as Wireshark, Nagios/Zabbix, and SNMP.Knowledge of network security, including firewalls, ACLs, and IDS/IPS.Experience working with routers, switches, and network cabling.Ability to create network diagrams and technical documentation.What do we offer?Hybrid working model and 4 weeks per year of teleworking outside your usual geographic area.Flexible start and finish times, and intensive working hours Fridays and in summer.Personalized career plan development, training and language learning support.National and international mobility; if you come from another country, we can offer you a relocation package.Competitive compensation with ongoing reviews, flexible compensation and discount on brands.Wellbeing program: Health, dental and accident insurance; free fruit and coffee, physical, mental and financial health training, and much more.Equal opportunity We promote equal opportunities in recruitment, and we are committed to inclusion and diversity.#J-*****-Ljbffr ## Related Videos - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [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) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Spanish Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/353-spanish-business-culture-and-etiquette) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Finding IT & Technology English-speaking Jobs in Germany ](https://www.wearedevelopers.com/magazine/446-finding-it-technology-english-speaking-jobs-in-germany) - [Finding Jobs in Germany](https://www.wearedevelopers.com/magazine/375-finding-jobs-in-germany) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam)