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.
Acerca de Cognizant
Cognizant (Nasdaq: CTSH) es un creador de soluciones de IA y proveedor de servicios tecnológicos que conecta la inversión en IA con el valor empresarial mediante el desarrollo de soluciones de IA full‑stack para sus clientes. Su profundo conocimiento de la industria, junto con su experiencia en procesos e ingeniería, permite incorporar el contexto único de cada organización en sistemas tecnológicos que amplifican el potencial humano, generan resultados tangibles y mantienen a las empresas a la vanguardia en un entorno en constante cambio. Más información en cognizant.ai o @cognizant.
Información adicional sobre el empleo
La información sobre la compensación es exacta en la fecha de publicación de este anuncio. Cognizant se reserva el derecho de modificar esta información en cualquier momento, de conformidad con la legislación aplicable.
Es posible que se solicite a los solicitantes que asistan a entrevistas de forma presencial o mediante videoconferencia. Asimismo, durante cada entrevista, los candidatos podrán estar obligados a presentar un documento de identidad válido emitido por el estado o por el gobierno.
Cognizant es un empleador que ofrece igualdad de oportunidades. Su solicitud y candidatura no se evaluarán en función de la raza, el color, el sexo, la religión, el credo, la orientación sexual, la identidad de género, el origen nacional, la discapacidad, la información genética, el embarazo, la condición de veterano ni cualquier otra característica protegida por las leyes federales, estatales o locales.
