June 8, 2026
Network Engineer
Mid • On-site
Warsaw, Poland
Tasks
Design and maintain LAN, WAN, and VPN topologies across on-premise and cloud environments.
Configure and administer routers, switches, firewalls, and load balancers.
Ensure high availability and redundancy of network infrastructure for critical systems.
Diagnose L2/L3 issues, analyze traffic, and optimize routing, VLAN, QoS, and segmentation.
Implement network security controls including ACLs, firewall policies, IPS/IDS, and trust zone isolation.
Collaborate with IT and security teams on migrations, new deployments, and architecture changes.
Participate in delivery projects as a network expert, including capacity estimation and architecture reviews.
Configure network monitoring tools, analyze logs and packets, and restore connectivity during incidents.
Requirements
At least 3 years of experience in network administration and design.
Strong knowledge of LAN/WAN/VPN, routing, VLAN, and QoS concepts.
Hands-on experience with enterprise-grade network devices.
Knowledge of network security practices (segmentation, ACL, firewall, IPS/IDS).
Ability to analyze traffic and troubleshoot complex performance issues.
Experience working cross-functionally on infrastructure projects.
Ability to operate effectively during incidents and under time pressure.
Good technical English.
Nice to Have
Network or security certifications (e.g., CCNA/CCNP, Fortinet, Palo Alto).
Experience with hybrid infrastructure and multi-site connectivity.
Familiarity with network monitoring and observability tooling.
Experience in mission-critical environments.
We Offer
Work on high-availability infrastructure and critical network security.
Real influence on networking standards and system communication architecture.
Growth opportunities in Network and Security specialization.
Stable employment in a modern company with a well-established market position.
An attractive salary and benefits package (including private medical care and a sports card).
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