Senior Windows Systems Admin | Citrix, 365 & AD

Rhox; Schaarbeek; On-site; EUR 70,000 - 100,000; Full time

Job summary

Rhox is seeking a senior Windows systems administrator to run and maintain Windows Server infrastructure, including Citrix and Microsoft 365 services. The role entails resolving escalations, deploying releases on application servers, and maintaining Citrix XenDesktop and RD Session Hosts.

You will manage the Windows Server estate and ensure security and uptime across the environment. Strong AD/GPs, Windows, and MS365 experience are essential, with Dutch language skills at C2 level.

Qualifications

• Five years setting up, managing and maintaining systems.
• Five years with Active Directory and Group Policies.
• Five years with Windows Server 2016 or later.
• Five years with DHCP, DNS, PXE and Windows firewalling.
• Two years with Microsoft 365: Exchange Online, Teams and authentication.
• Systems-engineering knowledge in at least one area: Unix/Linux/Windows, mainframes, middleware, security or networking.
• Dutch, C2.

Responsibilities

• Resolve second- and third-line incidents.
• Deploy line-of-business releases on application servers.
• Implement small service changes.
• Maintain Citrix XenDesktop servers and RD Session Hosts.
• Monitor and maintain the Windows Server estate.

Skills

Active Directory

Group Policies

Windows Server

Networking fundamentals (DHCP/DNS/PXE/

Tools

Citrix XenDesktop

RD Session Host

Citrix NetScaler

VMware vSphere

CommVault

Intune / Microsoft Endpoint Manager

Microsoft Defender for Endpoint

SCCM / SCORCH

IIS / .NET hosting

SQL Server

Exchange Online

SharePoint Online

Job description

Rhox is seeking a senior Windows systems administrator to run and maintain Windows Server infrastructure, including Citrix and Microsoft 365 services. The role entails resolving escalations, deploying releases on application servers, and maintaining Citrix XenDesktop and RD Session Hosts.

You will manage the Windows Server estate and ensure security and uptime across the environment. Strong AD/GPs, Windows, and MS365 experience are essential, with Dutch language skills at C2 level.