Linux Administrator

Location:

Little Rock, Arkansas (ONSITE, 5 times a week)

Applicants must be authorized to work in the US without sponsorship.
Please note, this role is not able to offer visa transfer or sponsorship now or in the future.

Cognizant is seeking a Linux Administrator to join our dynamic team.

• Provide advanced administration and support for Linux environments (primarily Red Hat Enterprise Linux) including system installation, configuration, patching, and troubleshooting.
• Manage and administer VMware ESX / vSphere 8 Enterprise environments, including VM provisioning, monitoring, performance tuning, and issue resolution.
• Perform hands‑on data center operations support, including hardware troubleshooting, system deployments, and infrastructure maintenance.
• Monitor system performance, availability, and capacity, ensuring high reliability and uptime of infrastructure services.
• Implement and maintain security controls and access management systems such as BoKS and Centrify/Delinea.
• Collaborate with cross‑functional teams (network, storage, application teams) to ensure seamless infrastructure operations and support.
• Troubleshoot complex infrastructure issues and perform root cause analysis for incidents impacting system availability.
• Support system upgrades, migrations, and infrastructure transformation initiatives within the data center.
• Maintain documentation of system configurations, procedures, and operational runbooks.

• Strong expertise in Linux Administration (RHEL preferred).
• Hands‑on experience with VMware ESX / vSphere 8 Enterprise.
• Proven experience in data center operations with on‑site support responsibilities.
• Experience with access management tools such as BoKS and Centrify/Delinea.
• Solid understanding of system monitoring, performance tuning, and troubleshooting.
• Experience working in enterprise production environment with high availability requirement.

Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

• Medical/Dental/Vision/Life Insurance
• Paid holidays plus Paid Time Off
• 401(k) plan and contributions
• Long‑term/Short‑term Disability
• Paid Parental Leave

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.