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Network Specialist Virtualization

ARHS


Job Location:

Warsaw - Poland

Monthly Salary: Not provided by the employer
Posted: 15 July 2026 (30+ days ago)
Application Deadline: 12 October 2026
Vacancies: 1 Vacancy

Job Summary

  • Administer monitor and troubleshoot IP networks
  • Administer the structural cabling system
  • Performing changes in physical and logical network configuration installing and removing devices cabling connections etc.
  • Provide 2nd line support to clients system and network users
  • Create and update the technical documentation and operating procedures
  • Advice possible network improvements changes or upgrades to the network infrastructure

Qualifications :

  • Bachelors degree plus 5 years of IT relevant professional experience
  • Minimum 5 years of experience at similar position
  • Minimum English language skills (CEFR): B2
  • Required certificates :

  1. Cisco CCNA or
  2. Vmware Network Virtualization or
  3. equivalent from other vendors

Knowledge :

  • Very good understanding of TCP/IP protocols and IP routing
  • Very good understanding of Ethernet switching protocols
  • Good knowledge of network services like DNS DHCP NTP etc.
  • Good understanding of the wired and wireless access technologies (wifi 802.1x/EAP etc.)
  • Good understanding of the application-layer authentication and encryption mechanisms e.g. HTTPS/SSL/TLS protocols PKI and X.509 certificates
  • Hands-on experience with the products and solutions related to the domain (e.g. Cisco routers and switches wireless controllers network firewalls etc.)
  • Hands-on experience in administering of a large enterprise network
  • Good knowledge of the network configuration of the endpoint operating systems (Windows Linux IOS etc.)
  • Work experience with stateful and stateless traffic filtering
  • Very good analytical and trouble-shooting skills

Skills:

  • Excellent communication skills both technical and non-technical (in written and verbal communication)
  • Very good analytical and trouble-shooting skills
  • Open minded excellent troubleshooting analytical and problem solving skills
  • Very strong sense of responsibility accuracy and attention to details
  • Sense of tact and diplomacy
  • Friendly supportive and helpful personality with co-operative and service oriented attitude
  • Ability to work in stressful environment with minimal supervision
  • High level of motivation and initiative creating thinking
  • A proactive attitude and team-work spirit
  • Physically fit to perform assigned duties (may require install or rack mount network appliances and network cables)
  • Able to travel occasionally inside Europe (plane boat car etc.) up to 15 travels/year
  • Driving license cat. B
  • Ability to drive rented car including abroad

Specific requirements:

  • very good knowledge of the VMware NSX-T platform
  • very good understanding of VMware ESX networking (e.g. distributed switching/routing/microsegmentation)
  • good knowledge of other virtualization platforms (Nutanix Proxmox etc)
  • good knowledge of network-level encryption (e.g. IPsec IKE DMVPN)
  • hands-on experience in configuration and troubleshooting of the Palo Alto next-generation firewalls and Panorama management system
  • hands-on experience in managing Cisco Nexus and Catalyst switches

Remote Work :

No


Employment Type :

Full-time


About Company

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Ar?s is a fully independent group of companies specialized in managing complex IT projects and systems for large organisations, focusing on state-of-the-art software development, business intelligence and infrastructure services. We are composed of 17 entities across 9 countries that ... View more

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