Network Engineer

Network Engineer (Level 3) Location: Fully Remote (with occasional travel to Madrid or Barcelona office, 1–2 times per month) Contract Type: Freelance / Autonomo Duration: 11–12 months About the Role: We are seeking a highly skilled Level 3 Network Engineer to support a large-scale data center environment for a global IT services and consulting provider. The role involves working within a dynamic infrastructure team that supports enterprise-grade networking solutions across multiple client sites. Key Responsibilities: Provide advanced support and troubleshooting for complex network issues in a data center environment. Manage and optimize Cisco-based switching and routing infrastructure. Administer and troubleshoot firewalls, particularly Fortinet (NSE5/NSE7). Support wireless network environments using Cisco and Aruba technologies. Operate within virtual networking platforms such as Cisco ACI and VMware NSX. Manage and troubleshoot load balancers including F5 and Netscaler. Handle DNS configurations and maintenance using Infoblox. Participate in on-call rotations and provide rapid response during critical incidents. Collaborate with cross-functional teams to propose workarounds and solutions during outages or service disruptions. Required Skills & Experience: Minimum 4 years of hands-on experience in IT operations, specifically in networking. Certifications: Cisco (CCNA, CCNP), Fortinet (NSE5, NSE7). Strong understanding of network and internet protocols. Experience with WLAN/WiFi technologies (Cisco, Aruba). Familiarity with virtual networking (Cisco ACI, NSX). Load balancer experience (F5, Netscaler). DNS management expertise (Infoblox). Ability to work independently and propose effective solutions under pressure. Fluent in English (spoken and written). Nice to Have: Spanish language skills. Experience working in large enterprise or managed service environments. If you are interested in this role apply now! APPLY NOW!

Location: Madrid, Community of Madrid, ES

Posted Date: 8/13/2025