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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