Network Administrator

Quick Facts

• Role: Network Administrator (data center & Cisco enterprise networking)

Description

Administer, maintain, and develop network infrastructure in two data centers connected via dedicated dark fiber. Ensure high availability, redundancy, and reliability; monitor network performance, availability, and security; plan and deliver network modernization and expansions. Troubleshoot network outages and support disaster recovery, while administering Cisco enterprise networking at scale (~1000 devices), SD-WAN, VPN connectivity (site-to-site and remote access), and Cisco ACI/ISE environments.

Responsibilities

• Manage network infrastructure in two data centers connected by dedicated fiber (dark fiber)

• Ensure high availability, redundancy, and reliability between data centers

• Monitor performance, availability, and security of network infrastructure

• Plan and deliver data center network modernization and expansion

• Diagnose and resolve network incidents; participate in disaster recovery activities

• Perform periodic infrastructure checks in data center environments (e.g., UPS power, HVAC, rack cabinets, cabling)

• Administer and develop Cisco large-scale network infrastructure (~1000 devices) across many locations

• Maintain and develop SD-WAN solutions

• Configure and administer VPN connections (site-to-site and remote access)

• Administer Cisco ACI and Cisco ISE environments

• Troubleshoot routing, switching, and inter-site communication issues

Requirements

• Minimum 3–5 years of experience in administering and maintaining corporate networks

• Practical Cisco knowledge, especially Routing & Switching

• Experience with SD-WAN, Cisco ACI, and Cisco ISE

• Knowledge of VPN technologies (site-to-site, remote access)

• Experience administering data center network infrastructure

• Knowledge of high availability, redundancy, and continuous network operation

• Ability to diagnose and solve complex network problems

• Independence, responsibility, and readiness to respond to emergencies

• Willingness to be on technical on-call duty

Benefits

• Salary: 16,000–24,000 PLN (depending on experience and competencies)

• B2B or employment contract (UoP) cooperation option

• Long-term cooperation and stable employment

• On-site work in Łódź

• Opportunity to maintain and develop an expanded network infrastructure and two data centers

• Chance to deliver modernization and development projects using advanced Cisco technologies

• Work on infrastructure critical to organizational continuity