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.
About Cognizant’s CIS Practice:
Cognizant’s CIS (Cognizant Infrastructure Services) Practice is a global leader in providing IT infrastructure services. We deliver innovative solutions to optimize and transform IT infrastructure, ensuring business agility and operational efficiency. Our services include cloud computing, data center management, network services, and cybersecurity. We focus on understanding client needs and delivering customized solutions to drive business success.
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+
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.
コグニザントについて
コグニザント（NASDAQ: CTSH）は、AI Builderおよびテクノロジーサービスプロバイダーとして、お客様にフルスタックのAIソリューションを構築することで、AI投資と企業価値を結ぶ架け橋となっています。業界、ビジネスプロセス、エンジニアリングに関する当社の深い専門知識を活かし、組織固有のビジネス環境をテクノロジー・システムに組み込みます。これにより、人間の可能性を最大限に引き出し、確かな成果を実現するとともに、急速に変化する世界においてグローバル企業が常に一歩先を行くための支援を行っています。 詳細については、cognizant.ai をご覧ください。
雇用に関する追加情報
本募集に記載されている報酬情報は、掲載日時点で正確なものです。Cognizantは、適用される法令に従い、いつでも本情報を変更する権利を留保します。
応募者は、対面またはビデオ会議による面接への参加を求められる場合があります。また、各面接の際に、現在有効な州政府または政府発行の身分証明書の提示を求められる場合があります。
Cognizantは機会均等雇用主です。応募および選考において、人種、肌の色、性別、宗教、信条、性的指向、性自認、国籍、障がい、遺伝情報、妊娠、退役軍人の地位、その他連邦法・州法・地方自治体の法律により保護されるいかなる特性に基づく差別も行いません。
