System Administrator

About Proximus Luxembourg

Proximus Luxembourg is a leading historical player in the ICT & Telecoms markets. Proximus Luxembourg addresses both residential and business markets through its commercial brands Tango, Proximus NXT and more recently Codit.

With PSF support status, the company has almost 750 employees. All these experts share a passion for digital technology, a spirit of openness and innovation, and a desire to simplify, connect and make their customers' personal and professional activities ever more secure.

Proximus Luxembourg is actively contributing to the acceleration of Luxembourg's digitalisation and its economic influence through the development of connectivity, resilient infrastructures and 5G, as well as innovative technologies such as Blockchain, Artificial Intelligence, Machine Learning and IoT.

Proximus Luxembourg is a subsidiary of the Proximus group (Euronext Brussels: PROX), provider of digital services and communication solutions operating in the Belgian and international markets.

Your mission :

Administration Microsoft orienté cloud Microsoft :

o Azure (Entra ID - Azure AD, IaaS VMs, Storage Account Management, Conditionnal Access Policy, secrets and certificates mamangement, backup & Restore of Cloud Services).

o Microsoft 365 : Users Account management, Exchange Teams, SharePoint Online, OneDrive, Defender Security analysis, Backup & Restore of O365 assets.

o Déploiement (Intune/Endpoint Manager/ Patch My PC).

Your profile :

Exploitation & Support (RUN L2/L3)

o Traitement des incidents/req. avec ownership jusqu’à résolution (RCA, problem management).

o Astreintes possibles et gestion des changements (ITIL, CAB).

Administration Microsoft orienté cloud Microsoft :

o Azure (Entra ID - Azure AD, IaaS VMs, Storage Account Management, Conditionnal Access Policy, secrets and certificates mamangement, backup & Restore of Cloud Services).

o Microsoft 365 : Users Account management, Exchange Teams, SharePoint Online, OneDrive, Defender Security analysis, Backup & Restore of O365 assets.

o Déploiement (Intune/Endpoint Manager/ Patch My PC).

Administration Microsoft On prem :

o Windows Server 2012–2025, Windows 10/11, AD DS, GPO, DNS/DHCP, ADFS/.

o Exchange on-prem / hybride / Online (mailflow, DAG, CU, transport rules).

o Connaissances Citrix CVAD (Delivery Groups, StoreFront, NetScaler/ADC) et/ou Omnissa Horizon view.

Automatisation & Qualité

o Connaissance scripting via PowerShell (modules AD/Exchange).

o Supervision & capacité (Event Logs analysis et troubleshooting).

o Rédaction SOP, Work instructions; amélioration continue.

Our offer :

A professional and stimulating work environment in the IT & telecom sector. Multiple career opportunities within the Proximus Group at national and international level, cutting-edge training in new technologies, a wealth of recognized expertise. We also offer an attractive salary package and many other benefits.

Our company is an equal opportunity employer, valuing diversity in all its forms. We firmly believe that each individual brings a unique richness to our teams, and we are committed to creating an inclusive environment where every voice counts.

If at the end of the process your application is successful, you will be asked to provide an extract from your criminal record. Your personal information will be handled in compliance with applicable data protection laws.