What makes Cognizant a unique place to work? The combination of rapid growth and an nique place international and innovative environment! This is creating many opportunities for people like YOU — people with an entrepreneurial spirit who want to make a difference in this world.
At Cognizant, together with your colleagues from all around the world, you will collaborate on creating solutions for the world's leading companies and help them become more flexible, more innovative, and successful. Moreover, this is your chance to be part of the success story.
Position Summary
As a Senior Linux Systems Administrator, you will make an impact by leading the design and execution of automated, zero-touch patch management workflows that keep our large-scale virtual infrastructure secure, compliant, and running at peak performance. You will be a valued member of the Infrastructure & Cloud Operations team and work collaboratively with your manager, peer systems engineers, and security and compliance stakeholders
Mandatory Skills
· Extensive hands-on Red Hat Enterprise Linux and/or CentOS administration experience at enterprise scale; RHCSA or RHCE certification preferred
· Proven expertise architecting and implementing Ansible playbooks, roles, and workflows using Ansible Tower, AWX, or Ansible Automation Platform (AAP)
· Strong working knowledge of VMware vSphere/ESXi 7.x or 8.x, including VM provisioning, datastore management, and host patching via vCenter
· Advanced proficiency in Bash or Python scripting for task automation, along with deep familiarity with patching tools such as Red Hat Satellite and YUM/DNF
· Strong understanding of TCP/IP, DNS, SSH, NFS, and SAN/LVM storage concepts at an enterprise level
Roles And Responsibilities
· Lead the design, development, and maintenance of Ansible playbooks, roles, and Automation Platform (AAP) workflows to automate OS patching, kernel upgrades, service restarts, and pre/post-patch validation across Red Hat Enterprise Linux and VMware ESXi environments
· Architect and implement zero-touch patching frameworks and infrastructure automation strategies that reduce manual intervention and improve operational efficiency at scale
· Lead the management and troubleshooting of VMware ESXi hosts and virtual machines via vCenter/ESXi API, including snapshot management, guest tool updates, and host patching
· Own and drive compliance and reporting by ensuring all servers meet security standards, generating automated compliance reports, and maintaining thorough patch documentation
· Define and enforce infrastructure as code standards using Git for version-controlled Ansible playbooks, ensuring idempotent configuration across the environment
· Act as the escalation point for L2/L3 incident support for Linux and VMware issues, leading root cause analysis to prevent recurrence and overseeing daily administration tasks including user management, LVM, SAN/NFS storage, and security hardening
Salary Range: >$100,000
Date of Posting: 29-Jun-26
Next Steps: If you feel this opportunity suits you, or Cognizant is the type of organization you would like to join, we want to have a conversation with you! Please apply directly with us.
For a complete list of open opportunities with Cognizant, visit http://www.cognizant.com/careers. Cognizant is committed to providing Equal Employment Opportunities. Successful candidates will be required to undergo a background check.
À propos de Cognizant
Cognizant (NASDAQ : CTSH) est un AI Builder et une entreprise de services numériques (ESN) élaborant des solutions complètes d’IA maximisant les investissements pour des résultats concrets. Sa profonde expertise des métiers, des processus et des technologies lui permet d’intégrer dans les systèmes technologiques le contexte unique de chaque organisation de l’ingénierie à la production à l’échelle. Son objectif : améliorer l’efficacité des équipes, créer de la valeur et permettre aux grandes entreprises de rester performantes dans un monde qui évolue rapidement. Pour en savoir plus : cognizant.ai ou @cognizant.
Renseignments suppplémentaires sur l'emploi
Les informations relatives à la rémunération du poste à pourvoir dépendent de la date de publication de l’offre de poste. Cognizant se réserve le droit de modifier ces informations à tout moment, sous réserve des lois applicables.
Cognizant est un employeur soucieux de l'égalité des chances entre candidats. Votre candidature sera étudiée indépendamment de votre race, couleur, sexe, religion, croyances, orientation sexuelle, identité de genre, origine, handicap, informations génétiques, grossesse, statut d'ancien militaire ou de toute autre critère jugé discriminant par les lois européennes ou françaises.
Vous êtes porteur d'un handicap, vous pouvez-nous contacter par courriel [email protected] si vous souhaitez préciser les aménagements nécessaires pour le poste ou les entretiens à venir.
Les candidats peuvent être invités à participer à des entretiens en face à face ou par vidéoconférence. En outre, les candidats peuvent être amenés à présenter une carte d'identité valide lors de chaque entretien.
