IT Systems Administrator

About the role

We are looking for an experienced IT Systems Administrator to manage and support our Windows and Linux servers, network infrastructure, and security environment. You will work independently on complex technical issues, ensuring our systems remain secure, stable, and reliable.

Key responsibilities

• Install, administer, and maintain HCL Domino servers (training provided).
• Manage Windows and Linux server infrastructure.
• Monitor performance, analyse incidents and ensure timely resolution.
• Deploy, configure and maintain containerised environments using Docker.
• Provide advanced technical support to users and internal teams.
• Participate in projects focused on infrastructure improvement, automation and new technology implementation.
• Prepare and maintain technical documentation.

Required profile

• Proven experience installing and administering Windows Server and Linux Server systems.
• Strong knowledge of Microsoft Active Directory.
• Good understanding of networking principles (TCP/IP, DNS, DHCP, VPN, VLAN).
• Experience with firewalls, antivirus, access permissions and overall IT security solutions.
• Ability to analyse problems independently and devise effective solutions.
• Experience with virtualization and/or containerisation technologies.
• Fluent reading comprehension of technical documentation in English.
• Detail‑oriented, responsible and committed to reliable system operation.

Required skills

• Windows Server
• Linux Server
• Microsoft Active Directory
• TCP/IP, DNS, DHCP, VPN, VLAN
• Firewalls and antivirus solutions
• Virtualisation platforms (VMware, Microsoft Hyper‑V)
• Docker
• Ansible
• System monitoring tools (Zabbix, Uptime Kuma)
• SIEM solutions (Wazuh)
• CI/CD tools (GitHub Actions, GitLab CI)
• Relevant certifications (Linux, Windows Server, Microsoft Azure)

What we offer

• Interesting and responsible work in a friendly team.
• Flexible working hours.
• Dog‑friendly office.
• Workation option: up to 30 days a year from anywhere.
• Choice of remote work or working from our Kaunas office.
• Training, certification opportunities and professional development.
• Gross monthly salary of €2,500–€3,500 plus a quarterly performance‑based bonus.