Senior System & Network Administrator

About the role

DigitAI develops and maintains enterprise-grade software, including financial technology platforms and business-critical systems. It is hiring a Senior System & Network Administrator in Yerevan to take a key role in managing, securing and continuously improving its IT infrastructure. The position is full-time.

Key responsibilities

• Design, deploy, configure and maintain server and network infrastructure.
• Administer Windows Server and Linux environments.
• Manage virtualization platforms such as VMware, Hyper-V or Proxmox.
• Configure and maintain firewalls, routers, switches, VPNs and network security policies.
• Manage Active Directory, DNS, DHCP, Group Policy and related services.
• Ensure availability, performance, scalability and security of the infrastructure.
• Maintain backup, disaster recovery and business continuity solutions.
• Monitor infrastructure health, troubleshoot incidents and perform root cause analysis.
• Manage network segmentation, VLANs, routing and secure remote access.
• Implement hardening, patch management and vulnerability remediation.
• Maintain technical documentation, diagrams and procedures, and collaborate with DevOps, development and security teams.

Required profile

• 7+ years of hands-on experience in system and network administration.
• Strong knowledge of Windows Server and Linux administration.
• Hands-on experience with virtualization and backup and disaster recovery solutions.
• Ability to independently manage complex infrastructure environments.

Required skills

• TCP/IP, DNS, DHCP, VLANs, VPNs, NAT and routing protocols.
• Enterprise networking equipment and firewalls.
• Monitoring and logging tools such as Zabbix, Grafana or Prometheus.
• PowerShell, Bash or other scripting tools.
• Nice to have: Docker, Kubernetes, CI/CD, PostgreSQL, SQL Server, HA/DR design, HAProxy/NGINX, SIEM.

What we offer

• Work on complex FinTech and enterprise software projects.
• Direct involvement in infrastructure architecture and technology decisions.
• Professional and collaborative engineering environment.
• Opportunities for professional development and long-term career growth.
• Competitive salary based on experience and qualifications.

Candidates apply by sending their CV via a direct message on LinkedIn.