Windows Infrastructure Consultant

Seniority: Mid-Senior to Senior

The opportunity

A large international organisation based in Luxembourg is looking for an experienced Windows Infrastructure Consultant to reinforce its infrastructure team.

The consultant will be responsible for the stability, security and continuous improvement of a large Microsoft Windows Server environment. This is a hands-on position combining operational support, infrastructure engineering, automation, security and lifecycle management.

The successful candidate should be able to integrate quickly into an established technical team, take ownership of complex infrastructure topics and contribute to both daily operations and ongoing transformation projects.

Key responsibilities

Administer, maintain and troubleshoot Microsoft Windows Server infrastructure.

Ensure the availability, performance, capacity and operational resilience of Windows platforms.

Manage incidents, problems and changes, including root-cause analysis and long-term remediation.

Implement Windows security hardening standards, configuration baselines and vulnerability remediation measures.

Coordinate patching activities and maintain the Windows infrastructure lifecycle roadmap.

Develop and maintain PowerShell scripts to automate recurring operational and engineering tasks.

Contribute to Infrastructure-as-Code and CI/CD practices using Azure DevOps, Git and Visual Studio Code.

Support server upgrades, migrations, modernisation initiatives and decommissioning activities.

Work across on-premises, virtualised, private-cloud and Microsoft Azure environments.

Support risk, audit and compliance reviews by providing technical evidence and following up on remediation actions.

Collaborate with application, cybersecurity, network, cloud, middleware and infrastructure teams.

Create and maintain technical documentation, operational procedures, runbooks and knowledge articles.

Actively share technical knowledge and best practices with other team members.

Participate in Agile and Kanban ceremonies, backlog management and delivery tracking.

Support occasional planned interventions outside normal working hours, including weekends when necessary.

Required experience

Strong professional experience in the administration of Microsoft Windows Server environments within a large organisation.

Solid expertise in:Active Directory Domain Services

Group Policy

DNS and DHCP

Authentication and identity-related services

Advanced PowerShell scripting and automation skills.

Practical experience with Windows security hardening, patch management and vulnerability remediation.

Good understanding of privileged access, least-privilege principles and access governance.

Experience with Azure DevOps, Git, CI/CD pipelines and Visual Studio Code.

Exposure to Microsoft Azure, private-cloud platforms and VMware environments.

Strong understanding of structured IT service management processes, particularly incident, problem and change management.

Experience supporting business-critical infrastructure in a regulated or security-sensitive environment.

Additional technical knowledge

Experience with some of the following technologies would be considered an advantage:

Microsoft Endpoint Configuration Manager, formerly SCCM

Microsoft Intune

VMware

Microsoft Azure

Zabbix

Elastic Stack or comparable logging and monitoring solutions

ServiceNow

SharePoint

Confluence

Identity and Access Management processes

Infrastructure-as-Code and automated deployment practices

Personal competencies

Strong sense of ownership and accountability.

Proactive approach to identifying and resolving potential infrastructure issues.

Comfortable working in an Agile and Kanban environment.

Able to collaborate effectively with multidisciplinary technical teams.

Strong analytical and troubleshooting abilities.

Capable of adapting quickly to a complex enterprise environment.

Committed to documenting solutions and transferring knowledge.

Clear and concise communicator who can interact with both technical and non-technical stakeholders.

Comfortable working autonomously while remaining closely aligned with the wider team.