Virtualization Administrator

As a Virtualization Administrator , you will play a critical role in maintaining and optimizing enterprise virtualization platforms. You will be responsible for diagnosing complex infrastructure issues, ensuring high availability, and maintaining performance across virtualized environments.

Working within Cognizant’s infrastructure and cloud services teams , you will collaborate with cross-functional teams to deliver stable, scalable, and resilient virtualization platforms that support business-critical workloads.

Work Model

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring you to work both remotely and from a Cognizant or client office in the Netherlands . Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured - we will always be clear about role expectations.

In This Role, You Will

• Resolve host and cluster failures across enterprise virtualization environments.
• Troubleshoot and fix high-availability and load-balancing issues , including failed failovers and workload placement problems.
• Diagnose CPU, memory, and storage performance bottlenecks affecting virtual machines.
• Roll back or remediate platform patches when incidents or instability occur.
• Investigate and resolve storage connectivity issues affecting virtualized workloads.
• Monitor and enforce capacity limits and resource allocation across clusters and resource pools.
• Define and implement minimal operations agreements for degraded or failure scenarios.
• Ensure platform stability, resilience , and adherence to operational best practices.
• Collaborate with storage, network, and cloud teams to resolve cross-domain infrastructure issues.

• 5+ years of experience in enterprise virtualization environments.
• Strong expertise in enterprise virtualization platform administration , including high availability, load balancing, and live migration.
• Hands-on experience with clustering and workload migration across virtualization platforms.
• Proficiency with performance monitoring and troubleshooting tools .
• Solid understanding of storage technologies used in virtualized environments, including shared and networked storage.
• Experience with scripting for automation and operational efficiency.
• Strong troubleshooting mindset with the ability to resolve complex infrastructure issues under pressure.
• Understanding of enterprise infrastructure dependencies across compute, storage, and networking.

These Will Help You Stand Out

• Experience working in large-scale, multi-cluster enterprise environments .
• Exposure to hybrid cloud or cloud-integrated virtualization platforms .
• Familiarity with automation and infrastructure-as-code practices.
• Experience in incident management and root cause analysis (RCA) in production environments.
• Knowledge of ITIL processes and service management frameworks.

We’re excited to meet people who share our mission and can make an impact in a variety of ways. Don’t hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.

What We Offer

Joining Cognizant means becoming part of a technology-driven, international organisation with an open and collaborative team spirit. For this role based in the Netherlands , we offer:

• Competitive salary aligned with your experience and the market
• Pension scheme
• Access to Udemy and Cognizant Academy for continuous learning and professional development
• NS Business Card for public transport commuting
• ️ 25 paid holidays per year
• Laptop and smartphone provided
• Work in a technology-driven organisation with an international environment and open team spirit