Senior Network & Security Engineer

Description

Barcelona \- Published on 10/7/2026 **ARE YOU UP FOR THE CHALLENGE?** ------------------------ As a **Security & Networking Engineer**, you will join SEIDOR’s **Network Security & Connectivity unit**, where we drive the secure digital transformation of organizations by combining over 25 years of expertise in networking, security, and connectivity with a holistic vision focused on people, data, and innovation. We design, implement, and manage intelligent infrastructures that connect, protect, and optimize technological environments—from the workplace and data center to hybrid or multicloud environments. Our team delivers end-to-end services covering consulting, design, deployment, operations, and automation of IT networks and security. **WHAT WILL YOU DO ON A DAILY BASIS?** ------------------------------- Your responsibilities will include: Design, configuration, and **firewall migration** (Palo Alto, Fortinet, Check Point, Cisco) in high-availability setups. Deployment and operation of **routing & switching, SD-WAN, VPN, segmentation, and NAC**. Execution of **turnkey projects and migrations** across multi-client environments. Advanced L2/L3 **troubleshooting** and resolution of critical incidents (N2/N3 support). Technical documentation, change windows, and coordination with clients and other teams (systems, security, applications). Remote service (NSOC + 24x7 on-call duties). **WHAT DO WE EXPECT FROM YOU?** ------------------------- ### **Mandatory Requirements** * Proven experience in **network and security projects** (design, deployment, and/or migrations). * **Cisco**: routing & switching; ACI/Nexus/Firepower is a plus. * **NGFW firewalls**: hands-on experience with **Palo Alto** (Panorama) and/or **Fortinet** (FortiGate, FortiManager, FortiAnalyzer). * Solid knowledge of **routing/switching, VPN, HA, and perimeter security**. * Ability to work autonomously at client sites and focus on incident resolution. ### **Desirable (Preferred)** * **FortiAuthenticator**, **Netskope**, FortiProxy, Check Point, F5 (LTM/APM/WAF), Infoblox. * Experience in the **banking sector / mission-critical 24×7 environments**. * **SD-WAN, ZTNA, microsegmentation**, and cloud (Azure/AWS networking). * Certifications: **CCNA/CCNP**, **PCNSA/PCNSE** (Palo Alto), **NSE** (Fortinet). * Technical English · Availability for on-call duties/shifts and out-of-hours work.