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System Administrator - Security area


CodiLime helps companies build and transform their network applications by providing expert knowledge and technical teams experienced in building, developing and integrating SDN & NFV solutions in a single-, multi- or hybrid-cloud environment.

We are looking for a System Administrator to join our team in Warsaw.

We deal with the broadly defined protection of information, mostly from the technical side, both internally and for our customers. So we conduct penetration tests against networks and web applications to identify security vulnerabilities before attackers find them. We work on the security of systems and services. We work in a wide-range of environments, like: Proxmox, Openstack, Bare metals, manage mostly Unix-like systems, and external services for web applications, identity management, remote control  and so on.


  • Practical knowledge of Linux
  • Good knowledge of networks and network protocols
  • Hands-on experience with both physical and virtual networking, knowledge of network devices configuration (e.g. Junos, Cisco IOS, VyOS)
  • Scripting language knowledge (e.g. Python, Bash)
  • Low-level Linux knowledge
  • Knowledge of network security solutions e.g. WAF, IPS, IDS
  • Firewall configuration experience
  • Fluent in English (B2 level minimum)
  • Curiosity and a ‘can-do’ attitude
  • A team player

We also welcome

  • Experience in conducting a penetration tests
  • Troubleshooting skills
  • Ability to work with packet analyzer, e.g.Wireshark
  • Practical knowledge of Kali Linux

We offer

  • An opportunity to participate in conferences and workshops around the world
  • An opportunity to participate in internal training sessions (Tech Talks)
  • Attractive benefits
  • Flexible working hours
  • Frequent team-building events, a training budget and assistance from accountants
  • A good atmosphere among professionals who are passionate about their work
  • Subsidized English lessons with experienced native speaker English teachers
  • An attractive salary

Your contact

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