About the Position

Virtualization Administrator

Publicatiedatum aug. 11 2026

Plaats Amsterdam,AM-Vlisngenstrat / Netherlands

Functiecategorie Technology & Engineering

Het model van het werk Hybrid

Only candidates, with existing Netherlands/EU work authorization should apply, Sponsorship is not provided for this role.

About the Role

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.

Responsibilities

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.

Requirements

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.

Nice to Have

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 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

Contact the Recruiter

Have questions about this role? Feel free to reach out directly:

Nikoletta Katona [email protected]

About the Company

Cognizant (NASDAQ: CTSH) is een bouwer van AI-oplossingen en een leverancier van technologiediensten. Wij slaan de brug tussen AI-investeringen en ondernemingswaarde door het bouwen van full-stack AI-oplossingen voor onze klanten. Onze diepgaande kennis van sectoren, processen en engineering stelt ons in staat om de unieke context van een organisatie te verankeren in technologische systemen. Deze systemen versterken het menselijk potentieel, realiseren tastbare resultaten en geven wereldwijde ondernemingen een voorsprong in een snel veranderende wereld. Ontdek hoe op cognizant.ai of @cognizant.

Additional Information

De informatie over de beloning is correct op de datum van deze vacature. Cognizant behoudt zich het recht voor om deze informatie op elk moment te wijzigen, met inachtneming van de toepasselijke wetgeving.

Van sollicitanten kan worden verwacht dat zij gesprekken bijwonen, persoonlijk of via een videogesprek. Daarnaast kan van kandidaten worden gevraagd om tijdens elk gesprek een geldig, door de overheid uitgegeven identiteitsbewijs (zoals een identiteitskaart of paspoort) te tonen.

Cognizant is een werkgever die gelijke kansen biedt. Je sollicitatie en kandidatuur worden niet beoordeeld op basis van ras, huidskleur, geslacht, religie, levensovertuiging, seksuele geaardheid, genderidentiteit, nationale afkomst, handicap, genetische informatie, zwangerschap, veteranenstatus of enige andere eigenschap die wordt beschermd door federale, regionale of lokale wetgeving.

Career Path at Cognizant

Dit kun je verwachten van onze wervingsprocedure. Houd er rekening mee dat deze per functie en locatie kan verschillen. Bekijk onze FAQ’s voor meer informatie.

Step 1: Apply for the Right Job

Find a job opening that matches your skills and career goals and show why you are the right fit for the role. If you don't see a suitable job opening, consider joining our Talent Community.

Step 2: Contact Your Recruiter

If one of our recruiters sees a good match, they will schedule a brief introductory call to learn more about you and discuss how your experience and skills align with the role.

Step 3: Showcase Your Skills

If you and our team want to continue the process, you will interview with our hiring team. For some roles, technical assessments and/or client interviews may also be required.

Step 4: Time for a Decision

Our team will then assess each candidate's potential to be successful in the role. This step may take some time, as we want to find the right match - both for you and for us - but you can count on us to keep you updated.

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Virtualization Administrator

Job description