Network Administrator (L2) - Enterprise Broadcast Infrastructure

About Us

Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions. With a strong background in engineering and leadership, we help companies build high-performing teams by matching them with professionals who truly fit their needs.

About the role

We are looking for a Network Administrator (Level 2) to support the operations and reliability of a large-scale enterprise network infrastructure used by a major European media and broadcast organization.

This role focuses on network monitoring, incident management, infrastructure administration, and cloud network integration , ensuring high availability and performance across hybrid environments. You will work in a complex environment combining on-premise data centers, cloud networking, and modern NetOps automation practices .

The ideal candidate is experienced in Cisco-based data center networking, routing protocols, and hybrid cloud networking , and comfortable working in operational environments with strict uptime requirements .

Location: Katowice region, Poland (preferred)

Language: French (required)

Engagement: Contract

Responsibilities

• Monitor and manage network supervision alerts , including proactive analysis and incident handling
• Ensure network performance and bandwidth monitoring across enterprise environments
• Maintain network infrastructure updates , including patching, version upgrades, and inventory management
• Administer and maintain network and security devices across data center and cloud infrastructure
• Maintain and back up equipment configurations and operational documentation
• Configure and manage virtual networking components in cloud environments
• Manage network integrations between on-premise infrastructure and cloud environments using CI/CD technologies
• Process network flow requests and filtering rules
• Perform deep network analysis using specialized monitoring and diagnostic tools
• Conduct failover and resilience testing on critical network infrastructures
• Provide operational procedures and troubleshooting instructions for supervision and production teams
• Ensure accurate asset tracking and monitoring of network equipment movements
• Prepare and execute network and security equipment integrations into production environments
• Manage certificate installation and lifecycle management

Requirements

• Strong experience administering enterprise network infrastructures (L2/L3)
• Hands-on experience with Cisco data center networking (ACI, Nexus, Catalyst)
• Strong understanding of routing protocols (OSPF, BGP, PIM, IS-IS)
• Experience working with firewalls and load balancing technologies
• Familiarity with hybrid cloud networking (AWS / GCP / Azure)
• Experience with NetOps or infrastructure automation tools (Ansible, Terraform, GitLab)
• Ability to analyze network incidents and perform advanced troubleshooting
• Experience in high-availability environments and failover testing