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October 11, 2026
Network Engineer (Network & Security)
Senior • On-site
Warsaw, MA, Poland
Quick Facts
Role: Network Engineer (Network & Security)
Description
You will deploy and maintain network infrastructure and security environments according to best practices and internal/legal requirements. The work includes administration and configuration of firewalls, routers, high-availability switching, and load balancers, plus diagnosing and resolving network/security issues and supporting incident analysis. You will also monitor and optimize infrastructure performance, collaborate on IT deployments/migrations, prepare technical documentation and procurement requirements, and provide on-call support after onboarding.
Responsibilities
Implement and maintain network infrastructure and security environments
Administer and configure: firewalls (Palo Alto, Cisco, Juniper), routers (Cisco, Juniper), load balancers (F5 BIG-IP), and high-availability switches
Diagnose and resolve network and security problems; participate in incident analysis
Monitor and optimize infrastructure performance
Collaborate with IT teams on deployment and migration projects
Prepare technical documentation and report to your manager
Prepare requirements for purchasing/procurement procedures
Perform on-call duty after the onboarding period
Requirements
Minimum 4 years of experience in Network Administration/Network Security or a related role
Solid practical knowledge of key vendor products: Palo Alto, F5 BIG-IP, Cisco, Juniper
Practical routing and switching expertise: BGP, OSPF, VRRP/HSRP, STP/RSTP, VLAN, QoS, ACL
Knowledge of monitoring systems and network traffic analysis
Strong communication skills and ability to work in a team
English at a level enabling comfortable work with technical documentation and vendor support
At the final stage, provide a current certificate of no criminal record regarding offenses against information protection
Benefits
Employment under an employment contract with a quarterly bonus system
Modern, agile, collaboration-focused work organization
Wellbeing program with free psychological, legal, financial, and coaching support via Mindgram
Healthcare coverage and life insurance; sports card
Funding for sports activities and internal training
Opportunities to learn English, German, and Italian via the eTutor platform
Discounts for company banking products and additional social benefits
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