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: ONSITE work, Katowice region, Poland

Engagement: Long-term Contract (B2B or B2C)

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

• 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