> Markdown version of [/jobs/ext/1370013-principal-network-engineer](https://www.wearedevelopers.com/jobs/ext/1370013-principal-network-engineer). 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). --- # Principal Network Engineer - **Company:** Community Of - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Border Gateway Protocol, Enhanced Interior Gateway Routing Protocol, Monitoring of Systems, Network Architecture, Networking Basics, Open Shortest Path First (OSPF), Systems Integration, Wide Area Networks, Working Model 2D, Network Routers, Load Balancing, Firewalls (Computer Science), Cisco - **Published:** July 22, 2026 - **Apply:** https://es.trabajo.org/oferta-3348-becfa8292d650255c2a9d5afa0161710 ## About the Role Role Are you passionate about designing network infrastructure solutions that meet company needs? You'll have the opportunity to work closely with the Architecture Team and Development Teams, translating business requirements into scalable, resilient, and high-performing network solutions. You'll be responsible for creating Low-Level Designs (LLD) for required solutions/projects, ensuring comprehensive planning and documentation. You'll identify and select the necessary hardware, software, and components to support network infrastructure, such as switches, routers, firewalls, load balancers, and management controllers. You'll design the overall architecture of the network, considering system connectivity, security requirements, and environmental constraints. Enjoy the flexibility of a hybrid working model with two days in either Malaga or Madrid, along with a corporate pension plan, free health insurance for your entire family, and the opportunity to take English and Spanish language classes. They also provide free psychotherapy sessions, a gym membership subsidy, annual salary reviews, life insurance coverage, and exciting social events throughout the year. Plus, you'll find a well-stocked office with complimentary breakfast, snacks, and beverages. Join this dynamic team and contribute to innovative network solutions LLD for required solutions/projects. Identify the hardware, software and components that will be required to support the networks. This may include switches, routers, next-gen firewalls, load balancers, management controllers like APIC, Identity service managers or monitoring tools, among others. Design the details of the overall architecture of the network, including the placement of components and the interfaces between them. This should take into account the HLD, the requirements of the connectivity and security of the system, as well as any constraints or limitations of the environment. Provisioning, operational tasks (performance, scaling, organisation, routine patching, security…) and decommissioning of network infrastructure. Networking engineer / designing-related experience. Cisco. Ideally palo alto. F5 is a massive bonus. any certs bonus (PCNSE, CCNP, CCDP, CCIE). Operating and design knowledge of standard networking fundamentals/protocols - LAN / WAN / BGP / OSPF / EIGRP. €85 basic. Hybrid working 2 days in Malaga or Madrid. Corporate pension plan. Free health insurance for the whole family. Free English and Spanish language classes. Free psychotherapy sessions. Gym membership subsidy. Annual salary reviews. Life insurance. Fun socials - from weekly happy hour drinks to big seasonal events. 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