system administrator for corporate infrastructure

Social Discovery Group is a group of social discovery companies that addresses loneliness, isolation, and disconnection by transforming virtual intimacy into a normal way of connecting. Its products include social entertainment platforms that connect people online across different cultures and regions.

• Administer the corporate Microsoft infrastructure, including Active Directory, DNS, DHCP, Certificate Authority (PKI), and Group Policy;
• Administer access platforms and services including Atlassian, the 1C/ERP application and SQL servers, monitoring, backup, Google Workspace, and Slack;
• Support VDI and terminal server farms, administer domain services and certificates, and keep systems patched and documented;
• Resolve incidents and service requests within agreed SLAs;
• Participate in infrastructure projects, including Active Directory domain migration, Citrix VDI replacement, application publishing and load-balancing stack replacement, Windows Server upgrades, and legacy system decommissioning;
• Prepare implementation steps, build test environments, and run pilots for infrastructure projects;
• Keep infrastructure documentation and inventory up to date in NetBox and Confluence;
• Participate in the on-call rotation to keep systems available and running.

• Bachelor’s degree in Computer Science, IT, or a related field;
• At least 5 years of experience administering Microsoft and VDI infrastructure;
• Hands-on experience with at least one completed Active Directory domain or forest migration, including object migration between domains and forests with minimal downtime;
• Production experience administering VDI or terminal access platforms;
• Strong knowledge of multi-domain Active Directory, including domains, forests, trusts, replication, FSMO, DFS, GPO, delegation, Kerberos/NTLM, auditing, and new domain controller deployment;
• Experience with ADMT/PES, SID History, dependency inventory, and phased domain or forest migration;
• Knowledge of DNS zones, forwarders, zone transfers, and split horizon;
• Knowledge of AD CS, including templates, auto-enrollment, revocation, renewal, and TLS lifecycle;
• Experience with Citrix or alternative VDI platforms, deployment, golden images, troubleshooting, and Windows 11;
• Experience building and operating Windows RDS farms, including Connection Broker, RD Gateway, Session Hosts, published applications, CAL, FSLogix, and Duo MFA;
• Experience upgrading end-of-life Windows Servers to 2022/2025, using WSUS and patching, file services, Veeam backup and restore, and addressing audit findings;
• Experience with Linux systems, including Ubuntu, AlmaLinux, CentOS/RHEL, systemd services and packages, users and access, logs, and troubleshooting;
• Experience with nginx and HAProxy load balancing, reverse proxy, publishing, TLS termination, health checks, NLB, and keepalived/VRRP;
• Knowledge of Hyper-V and VMware ESXi virtualization, including VMs, hosts, datastores, and snapshots;
• Experience with Google Workspace and GCP, including Workspace tenants, domains, groups, SSO/OAuth, domain-wide delegation, administration, billing, GWS backup, and GCP projects;
• PowerShell skills for routine administration;
• Clear communication, collaboration across diverse teams, problem-solving, adaptability, critical thinking about legacy dependencies, attention to detail, rollback planning, and customer focus;
• Fluent Russian and English proficiency at B1 (Intermediate) or above for written and spoken communication;
• Nice to have: Bash or Python, IaC with Terraform or Ansible, VMware Horizon, Azure Virtual Desktop, Amazon WorkSpaces, AWS, Azure, GCP, Hyper-V/VMware/Proxmox, SAN/iSCSI block storage administration, vSAN or an alternative HCI solution, ITIL Foundation or another service management certification.

• 28 Calendar days of vacation per year;
• 7 Wellness days per year;
• Bonuses up to $5000 for recommending successful applicants;
• 50% Payment for professional training, international conferences, and meetings;
• Corporate discount for English lessons;
• Health benefits, including up to $1,000 gross per year per employee for health insurance or doctor’s fees if the employee is not eligible for corporate medical insurance;
• Equipped workplace and necessary equipment in company offices or co-working locations; reimbursement of workplace costs up to $1000 gross once every 3 years in other locations;
• Internal gamified gratitude system with bonuses exchangeable for merchandise, team building activities, and massage certificates.