Linux Administrator

Linux AdministratorLocation: 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.What You'll Do In The Role:Design robust infrastructure architectures for Linux environments including RHEL and OEL to support mission critical enterprise applications with high reliability and predictable performanceDevelop scalable AIX infrastructure solutions that align with organizational standards ensuring efficient utilization of compute storage and network resources for core business platformsImplement standardized system configurations for Linux and AIX servers to ensure consistent security hardening capacity planning and lifecycle management across multiple environmentsOptimize operating system performance by tuning kernel parameters managing resource allocations and refining system services to improve throughput and stability for production workloadsCoordinate with application and database teams to define infrastructure requirements translating business needs into practical system designs that support future growth and technology evolutionEstablish monitoring baselines for Linux and AIX systems by configuring metrics alerts and dashboards that proactively identify incidents and enable rapid remediation before customer impactCreate and maintain infrastructure documentation including high level designs low level designs and operational runbooks to provide clarity for operations teams and ensure repeatable processesDrive incident and problem analysis for infrastructure issues by reviewing system logs conducting root cause reviews and recommending durable corrective actions that prevent recurring disruptionsIntegrate enterprise backup and recovery solutions for Linux and AIX instances to protect critical data and ensure reliable restoration capabilities in alignment with recovery time and recovery point expectationsCollaborate with security and compliance stakeholders to apply security configurations manage patches and support audits ensuring that infrastructure designs meet regulatory requirements for cards and payments ecosystems when applicableSupport infrastructure transition and transformation activities such as system migrations upgrades and consolidation by planning required tasks coordinating with stakeholders and validating successful execution in test and production landscapesEngage with global teams in a hybrid work model by participating in design workshops status reviews and technical discussions to ensure transparency shared understanding and smooth delivery of infrastructure changesProvide technical guidance to operations personnel by explaining infrastructure design decisions clarifying configuration standards and mentoring colleagues on best practices for administering Linux and AIX environmentsWhat You'll Need To Succeed:Advanced experience with Linux, ESX administrationData center operations resource in Little Rock (hands on support requirement).Experience supporting Red Hat Enterprise Linux and VMWare vSphere 8 Enterprise, BoKS,Centrify/Delinea,AIX.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 LeaveDisclaimer: 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.Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you'll deliver services to and collaborate with stakeholders outside the province who may not speak French.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, provincial or local laws.If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email View email address on click.appcast.io with your request and contact information. Cognizant