System Administrator

The role is based in the Kyiv region, and we will expect you to work full-time in the office. We have a shuttle service from the nearest metro station.About the Job

Our company is actively expanding its IT infrastructure team, and the IT Support Specialist/ System Administrator (Middle) position is a key role in ensuring the stability and security of our network environment. We are looking for an experienced professional who is passionate about building and maintaining robust IT systems and eager to contribute to the development of advanced technologies.

What is your Day-to-Day Mission

• Build and maintain wired and wireless networks, configure routing and ensure network security;
• Configure network IP services (DNS, DHCP, SMTP, SSH, FTP, etc.);
• Set up and manage protocols and technologies: TCP/IP, VPN (IPsec, SSL), BGP, OSPF, EIGRP, NAT, Port-security, QoS, VLAN, STP;
• Configure and support network equipment (MikroTik, Ubiquiti, Cisco, FortiNet);
• Configure and maintain video surveillance systems (Hanwha, Dahua, Hikvision);
• Manage firewalls and IDS/IPS systems;
• Provide user support via RDP/TeamViewer/Anydesk;
• Monitor and analyze network traffic using specialized tools.

What You Bring to the Team

• 3+ years of experience as a network engineer or system administrator;
• Strong knowledge of wired and wireless network design, routing technologies, and network security;
• Proficiency in IP services (DNS, DHCP, SMTP, SSH, FTP, iSCSI, RoCE);
• Experience with protocols: TCP/IP, VPN (IPsec, SSL), BGP, OSPF, EIGRP, NAT, QoS, VLAN, STP;
• Hands-on experience with MikroTik, Ubiquiti, Cisco, FortiNet equipment;
• Familiarity with video surveillance systems (Hanwha, Dahua, Hikvision);
• Experience with EDR/EPP endpoint protection systems;
• Ability to manage firewalls, IDS/IPS systems, and cloud network resources (AWS, Azure, GCP);
• Knowledge of Linux and Windows OS;
• Practical experience with Active Directory (AD/AAD), Office 365, Intune, GPO, NPS, CA;
• Experience with monitoring tools (Dude, Zabbix, Grafana);
• English language level B1 or higher.

Why Quantum Systems

• We stand with Ukraine!
• Work in an international team of professionals.
• Official employee reservation status.
• Opportunities for professional growth and training.
• Modern technologies and exciting projects.