Network Engineer (Level 3) – Data Center & Cisco Technologies
- 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 finding out more, apply today!
APPLY NOW!
Key Skills
Ranked by relevance
Related Jobs
3 roles aligned with this opportunity
Full-Stack Developer | Remote
2026-05-27
Project Manager | Remote
2026-05-27
Dotnet Developer
2026-05-28
- Posted
- Jul 29, 2025
- Type
- Contract
- Level
- Mid-Senior
- Location
- Barcelona
- Company
- 83zero
Industries
Categories
Related Jobs
3 roles aligned with this opportunity
Full-Stack Developer | Remote
2026-05-27
Project Manager | Remote
2026-05-27
Dotnet Developer
2026-05-28