Senior System Administrator

About the role

We are looking for a Senior System Administrator with deep expertise in Microsoft infrastructure and VDI/RDS platforms. The role is fully remote and involves hands‑on support for multiple data centres, virtualization, storage, backup and cloud services, working closely with NOC, InfoSec, DevOps and L2 teams.

Key responsibilities

• Administer corporate Microsoft services – Active Directory, DNS, DHCP, PKI and Group Policy.
• Maintain VDI and terminal server farms, including Citrix or alternative solutions.
• Support Atlassian tools, 1C/ERP, SQL servers, monitoring, backup, Google Workspace and Slack.
• Participate in infrastructure projects such as AD domain migration, VDI replacement, load‑balancer stack upgrade and Windows Server refresh.
• Prepare implementation steps, build test environments, run pilots and keep documentation up to date.
• Take part in on‑call rotation to ensure system availability.

Required profile

• Bachelor’s degree in Computer Science, IT or related field.
• Minimum 5 years of experience administering Microsoft and VDI environments.
• Hands‑on experience with at least one Active Directory forest migration.
• Fluent in English and Russian (B1 or higher).

Required skills

• Active Directory, DNS, DHCP, Certificate Authority, Group Policy.
• Citrix or other VDI platforms, Windows RDS, FSLogix, Duo MFA.
• Windows Server 2012‑2025, WSUS, Veeam backup.
• Linux (Ubuntu, AlmaLinux, CentOS/RHEL) system administration.
• Hyper‑V, VMware ESXi virtualization.
• nginx, HAProxy, keepalived/VRRP load‑balancing.
• PowerShell, Bash or Python scripting; Terraform or Ansible preferred.
• Google Workspace, GCP administration.

What we offer

• Fully remote full‑time position.
• 28 vacation days plus 7 wellness days per year.
• Referral bonuses up to $5,000.
• Up to 50 % reimbursement for professional training and conferences.
• Health benefit allowance up to $1,000 per year.
• Equipment allowance for home office setup.
• Internal gamified gratitude system with merchandise and team‑building activities.