Freelance Senior Infrastructure Engineer – Virtualization & Windows
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Contract until end 2026, renewable, Diegem- Hybrid (3 days onsite) – intention to move to full-time onsite as of January 2027
Overall Role Purpose
We are looking for a highly motivated Senior Infrastructure Engineer. In this role, you will help manage and evolve a complex, global environment covering Windows Server, Active Directory, VMware vSphere and Nutanix, with a strong focus on availability, security, performance and disaster recovery.
The ideal candidate brings solid hands-on experience in enterprise infrastructure environments and enjoys working in an international, mission-critical context.
Responsibilities
* Design, implement and manage VMware, Nutanix and Windows Server infrastructure to ensure high availability and optimal performance
* Monitor and proactively optimize performance across VMware vSphere, Nutanix and Windows Server environments
* Identify, troubleshoot and resolve complex infrastructure issues
* Plan and execute system updates, patches and upgrades with minimal operational impact
* Develop and maintain clear, structured documentation of processes, procedures and configurations
* Collaborate closely with other IT teams and stakeholders to align infrastructure solutions with business objectives
* Stay up to date with industry trends, emerging technologies and security best practices
Qualifications
* Minimum 5 years of experience in IT Infrastructure administration and configuration
* Proven hands-on experience with VMware vSphere, Nutanix, and virtualization technologies in general
* Strong expertise in Microsoft Windows Server, xphnsxz Active Directory Domain Services and related services
* Solid understanding of networking principles and system architecture
* Experience with automation and scripting, preferably using PowerShell and Ansible (or similar tools)
* Knowledge of System Center Operations Manager (SCOM) is a plus
* Awareness of GDPR and IT security standards
* Strong communication skills and a collaborative, team-oriented mindset
* Able to work independently, under pressure, with strong analytical skills
* Fluent in English, both spoken and written