Network Administrator (f/m/x)
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on network administration and security using Palo Alto Networks, Cisco FirePower, F5 Loadbalancer, TCP/IP, OSPF, BGP, VPN, RADIUS, TACACS+. Responsibilities include managing network protocols, firewall administration, WAF configuration, and access control. Requires at least 4 years of experience and strong knowledge of network security principles. The offer includes remote work option and an attractive benefits package.

new

Network Administrator (f/m/x)

Company: Sii Sp. z o.o.

from: 7 July 2026
to: 6 August 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:mid • senior
working mode:remote • hybrid • full office
Białystok, Centrum
Białystok, CentrumJózefa Marjańskiego 3View on map

Requirements

Expected technologies

Aruba
TCP/IP
Palo Alto Networks
WAF (Web Application Firewall)
Cisco
F5 Loadbalancer
Firewalls
RADIUS
Cisco FirePower IPS/IDS

Our requirements

  • Minimum 4 years of experience in network administration
  • Strong knowledge of TCP/IP protocols and computer networks
  • Proficiency in configuring routing, ACLs, VPNs, and VLANs
  • Experience with Palo Alto Networks and Cisco firewall technologies
  • Hands-on experience with F5 Loadbalancer and Web Application Firewalls
  • Familiarity with RADIUS and Aruba ClearPass administration
  • Solid understanding of network security principles and technologies, including IPS/IDS
  • Advanced level of English

Optional

  • Familiarity with Akamai application protection solutions

Your responsibilities

  • Providing ongoing support for the network team operations
  • Configuring and managing network protocols and services such as TCP/IP, LAN/WAN, and VPN
  • Implementing and troubleshooting routing protocols including OSPF and BGP
  • Administering firewalls and security solutions, including Palo Alto Networks and Cisco FirePower
  • Managing load balancers, specifically F5, to ensure optimal traffic distribution
  • Configuring and maintaining Web Application Firewalls (WAF) to protect web applications
  • Utilizing RADIUS and TACACS+ for secure network access control
  • Ensuring the security of network systems and applications against potential threats
Company

About the project

We are looking for an experienced Network Administrator to support the ongoing operations of our team. This remote role involves working with various network technologies and security systems to ensure a robust and secure network environment. If you are passionate about network administration and security, this opportunity may be the right fit for you.

What we offer

  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

Recruitment stages

  • 1.
    Send your CV
  • 2.
    Talk to us about your expectations
  • 3.
    Learn more about our projects and choose the best
  • 4.
    Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

This is how we work

Network Administrator (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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