Job description

About the group: 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* Role: Sr Infrastructure Admin - VMWare Compute Location: Remote Mandatory skill : VMware ESXi, Windows Server Admin, Cloud – Azure & AWS (Medium expertise) Senior VMware L3 Engineer (vSphere & Dell PowerFlex) Experience: 10-12+ Years Position Summary We are seeking a highly skilled VMware L3 Engineer 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. Key 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. Compensation : We are offering between $90,000 – $115,000. Applications will be accepted until Oct 2, 2026.Cognizant will only consider applicants for this position who are legally authorized to work in Canada without requiring employer sponsorship, now or at any time in the future. Disclaimer : The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law. *Please note, this role is not able to offer visa transfer or sponsorship now or in the future* About Cognizant: Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant. Additional employment information Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law. Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview. Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws. If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email CareersNA2@cognizant.com for roles based in the Americas or CareersIndia2@cognizant.com for roles based in India.

Requirements

Must-haves

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.
Disclaimer : The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
Please note, this role is not able to offer visa transfer or sponsorship now or in the future*

Nice-to-haves

None flagged.

Application prep

Use the role’s language and application details while tailoring your materials.

Keywords to mirror

azureawsai

Platform: cognizant
Effort: medium