---
title: Senior System Administrator at Social Discovery Group
description: #vacancy #fulltime
---

# Senior System Administrator

**Company:** Social Discovery Group  
**Location:** Poland  
**Posted:** 2026-09-24  
**Apply by:** 2026-11-08

**Tags:** support

[Apply / View original posting](https://t.me/Pol_relocation/57350)

## Job description

#vacancy #fulltime

🚀 We are looking for **Senior System Administrator at Social Discovery Group** 🚀

🔹**Key Responsibilities**:
• Active Directory, DNS, DHCP, PKI, Group Policy — day-to-day administration
• AD domain migration to a new forest, replacing Citrix VDI with an alternative solution, rebuilding the load-balancing stack (nginx, HAProxy, keepalived/VRRP)
• Supporting VDI and terminal server farms, managing certificates
• Upgrading legacy Windows servers, decommissioning outdated systems
• Incident and request handling within SLA, on-call rotation

🔹 **Requirements**:
• 5+ years working with Microsoft and VDI infrastructure
• Hands-on experience with AD domain/forest migration (ADMT, SID History, phased migration with minimal downtime)
• Production experience with VDI or terminal server platforms
• Linux (Ubuntu, AlmaLinux, CentOS/RHEL), load balancing, Hyper-V/VMware ESXi
• English B1 or above

📩 @recruiter_w

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