Job Role: Senior IT Systems Administrator
Location: Long Beach,CA
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.
The Senior IT Systems Administrator is responsible for the administration, maintenance, optimization, and support of the organization's server, cloud, network, and end-user computing infrastructure. The role ensures the stability, security, and availability of business-critical systems while providing advanced technical support and leadership for infrastructure operations. This position will lead troubleshooting activities, manage system upgrades and deployments, support security and compliance initiatives, and collaborate with cross-functional technology teams. The Senior Systems Administrator serves as an escalation point for complex infrastructure issues and contributes to infrastructure modernization and automation initiatives.
What you’ll do in the role:
- Administer and maintain Windows Server environments
- Manage Active Directory, Group Policy, DNS, DHCP, and identity management services.
- Configure, monitor, and troubleshoot enterprise infrastructure systems.
- Perform server provisioning, patching, upgrades, and decommissioning activities.
- Ensure system availability, reliability, and performance.
- Administer Microsoft 365 services, incl Exchange Online, Teams, SharePoint, and OneDrive.
- Support user provisioning, access management, and mailbox administration.
- Troubleshoot collaboration and messaging platform issues.
- Monitor infrastructure health using enterprise monitoring tools.
- Perform capacity planning and performance tuning.
- Support datacenter operations, hardware installations, and infrastructure maintenance.
- Coordinate with network, security, and server teams during planned and unplanned activities.
- Provide Level 3 support for desktops, laptops, mobile devices, printers, and workplace technologies.
- Administer endpoint management platforms such as Intune and SCCM.
- Support operating system deployments and patch management.
- Manage software packaging and distribution.
- Act as an escalation point for complex technical incidents.
- Conduct root cause analysis and implement permanent corrective actions.
- Participate in change management reviews and CAB meetings.
- Ensure infrastructure changes follow governance and compliance standards.
- Implement security hardening and vulnerability remediation activities.
- Support audit and compliance requirements.
- Manage privileged access, security groups, and access controls.
What you’ll need to succeed:
- Windows Server Administration
- Active Directory & Group Policy
- Microsoft 365 Administration
- DNS, DHCP, TCP/IP
- VMware / Hyper-V
- Server Monitoring & Performance Management
- ITIL Processes
- ServiceNow or equivalent ITSM platforms
- Advanced Troubleshooting Skills
Qualifications
- Bachelor's Degree in Information Technology, Computer Science, Engineering, or a related field.
- 7+ years of experience in Systems Administration or Infrastructure Support roles.
- Relevant certifications preferred:
- Microsoft Certified: Azure Administrator
- Microsoft 365 Administrator
- ITIL Foundation
- VMware VCP
- CompTIA Server+ or Network+
Salary and Other Compensation:
The annual salary for this position is between $63,000 to $74,000 yearly depending on experience and other qualifications of the successful candidate.
This position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and subject to the terms of Cognizant’s applicable plans.
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.
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.
