Network Administrator (Mid/Senior)

Posnet Polska S.A.

Warsaw, Poland • 1h ago • On-site

Mid

On-site

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Quick Facts

  • Role: Network Administrator (Mid/Senior)

  • Focus: LAN/WAN operations, BGP, VPN, firewall security policies, monitoring and troubleshooting

Description

You will configure and manage the company’s LAN/WAN networks at the headquarters and in branch offices. The position includes BGP router management, Layer 7 firewall security policy configuration, and managing VPN tunnels internally and with external providers. You will also monitor network health, update device software, troubleshoot incidents, maintain documentation, and ensure solutions comply with legal/statutory requirements.

Responsibilities

  • Configure LAN/WAN networks at HQ and branch locations based on company growth and new projects

  • Manage BGP routers at interconnects with telecom operators

  • Configure Layer 7 security policies on routers/firewalls while following company security standards and traffic policies

  • Configure and manage VPN tunnels within the company and at the interface with external service providers

  • Monitor changes and keep network device software/firmware up to date

  • Continuously monitor network performance and diagnose/resolve problems

  • Maintain current network documentation

  • Ensure that implemented solutions comply with applicable legal and statutory requirements

Requirements

  • 3–4+ years of experience managing a medium-sized network

  • Knowledge of data center and LAN/WAN networking technologies

  • Knowledge of switching and routing solutions (including BGP)

  • Ability to configure Layer 7 security policies on firewalls

  • Knowledge of site-to-site and client-to-site VPN solutions

  • Ability to configure and manage network services such as DHCP and DNS

  • Knowledge of network mechanisms such as STP, DHCP snooping, ARP spoofing protections, BPDU guard

  • Ability to analyze logs and resolve incidents (including proactive actions)

  • English at a communication level

Benefits

  • Stable employment on a contract of employment

  • Work in a small team with a flat structure and real technical/organizational impact

  • Non-corporate atmosphere

  • Co-financing of private medical care

  • Co-financing of life insurance

  • Meal co-financing in the company canteen

  • Multisport card co-financing

  • Access to a company sports center (sports hall, squash room, mini gym)

  • On-site showers and changing rooms

  • Integration meetings and trips

  • On-site parking (including bike parking)

Additional Benefits

  • Sports activity co-financing

  • Private medical care

  • Life insurance

  • Integration meetings

  • Gym in the office

  • Coffee/tea

  • Employee parking

  • Showers on-site

  • Meal co-financing in the company canteen

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