Sr Infrastructure Admin - VMWare Compute

About the Position

We are seeking a highly skilled Sr Infrastructure Admin with strong expertise in VMware vSphere running on Dell PowerFlex infrastructure. The role is responsible for providing advanced operational support, troubleshooting, performance optimization, and lifecycle management for virtualized Windows server environments supporting mission-critical applications.

Responsibilities

• Provide L3 support for VMware vSphere, ESXi, and vCenter environments hosted on Dell PowerFlex.
• Manage VMware clusters, HA, DRS, vMotion, Storage vMotion, and host lifecycle management.
• Administer and support Dell PowerFlex compute and storage infrastructure, ensuring optimal performance and availability.
• Troubleshoot complex virtualization, storage, networking, and Windows Server issues.
• Perform VMware and PowerFlex upgrades, patching, capacity planning, and health checks.
• Support Windows Server 2016/2019/2022, Active Directory, DNS, DHCP, and Group Policy.
• Conduct root cause analysis (RCA) for critical incidents and implement permanent fixes.
• Collaborate with Storage, Network, Security, and Cloud teams on infrastructure projects and operational improvements.
• Develop automation scripts using PowerShell and maintain operational documentation.
• Administer VMware vSphere environments, including ESXi hosts, vCenter, virtual machines, clustering, vMotion, HA, and DRS.
• Manage Windows server infrastructure, enterprise applications, core network services, and end-user computing platforms.
• Implement patching, security remediation, and configuration management.
• Design and support highly available infrastructure using failover clustering, replication, log shipping, and mirroring technologies.
• Perform capacity planning, performance optimization, infrastructure monitoring, and proactive maintenance to meet availability and SLA commitments.
• Provide 24x7 production support and manage incidents, problems, changes, requests, and root-cause resolution through ITSM processes.
• Collaborate with clients and technical teams on infrastructure transitions, application support, documentation, and continuous service improvement.

Requirements

• Mandatory skills:
  • VMware ESXi
  • Windows Server Admin
  • Cloud – Azure & AWS (Medium expertise)
• Experience: 10-12+ Years

We Offer

• Compensation: Between $90,000 – $115,000
• Work model: Hybrid

About the Company

Cognizant’s Cloud, Infrastructure, and Security Services Practice (CIS), is all about accepting digital transformation by driving core modernization holistically across layers. We help customers transform infrastructure and workplace to meet the constantly evolving needs of the digital era. Our broad approach delivers key results for our customers by achieving cloud driven modernization and workplace and operational transformation to own the business in a secure environment.

Please note, this role is not able to offer visa transfer or sponsorship now or in the future

Benefits that help you thrive and grow

Our benefits program is built with you in mind-so you can enjoy a fulfilling, balanced and healthy life.

Financial wellbeing

We regularly review market data to ensure compensation reflects the value you bring. Your benefits extend beyond pay and may include retirement plans, financial education, etc.

Physical and mental health

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program and more.

Your career, your way

With 350,000+ roles at Cognizant, you’ll have opportunities explore new technologies, industries and locations-and build the skills you need to grow your career.

Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

Your path to Cognizant

Here’s what you can expect from our hiring process. Please keep in mind that it may vary by role and location. Explore our FAQs to learn more.

Step 1: Apply to the right opportunity

Find an open role that matches your skills and career goals and show us why you’re the person for the job. Don’t see the right opportunity? Consider joining our Talent Community.

Step 2: Connect with your recruiter

If one of our recruiters sees a fit, they’ll set up a short intro call to learn more about you and how your experiences and skills match the role.

Step 3: Show off your skills

If you and our team would like to continue the process, you’ll interview with our hiring team. Some roles may also require technical assessments and/or client interviews.

Step 4: Decision time

Our team will then review each candidates’ potential to succeed in the role. This step may take some time because we want to find the right fit for both you and us-but you can count on us to keep you updated.