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Senior Windows Administrator (09 / 11 / 2025)
CelesticaChennai, Tamil Nadu, India6 hours ago
Job descriptionServe as the subject matter expert for Windows Server operating systems (all current versions), Active Directory, Group Policy, and core infrastructure services. Design and manage enterprise virtualization platforms, specifically VMware vSphere and Microsoft Hyper-V. Architect and manage Dell PowerFlex (formerly VxFlex OS) and other Software-Defined Storage solutions. Hands-on experience with configuration and administration of enterprise storage arrays from Dell (e.g., PowerMax, Unity) and HPE (e.g., 3PAR, Nimble). Implement and manage cloud services, specifically Azure IaaS / PaaS components, networking, and governance policies, and similar services within IBM Cloud. Define and enforce standards, documentation, and operational procedures for all managed infrastructure. Troubleshoot and resolve the most complex, high-impact infrastructure issues. Provide technical guidance, mentoring, and training to infrastructure engineers and operational support teams. Collaborate with security teams to ensure the infrastructure adheres to all corporate and regulatory compliance standards. 14-18 years of progressive experience in IT infrastructure, with a strong focus on Windows Server and architectural roles. Deep expertise in Windows Server (2012 R2 - 2022) and core services (AD, DNS, DHCP, Clustering). Extensive experience with virtualization platforms : VMware vSphere and Microsoft Hyper-V. Proven architectural experience with at least one major public cloud : Microsoft Azure (required) and familiarity with IBM Cloud (highly desirable). Expertise in Software-Defined Storage (SDS), with hands-on experience in Dell PowerFlex and / or similar technologies (e.g., VMware vSAN, Microsoft Storage Spaces Direct). Strong knowledge of enterprise storage solutions from vendors like Dell and HPE, including SAN, NAS, and Fibre Channel / iSCSI networking. Excellent written and verbal communication skills, with the ability to present complex technical information to both technical and executive audiences. Relevant industry certifications (e.g., Microsoft Certified : Azure Solutions Architect Expert, VMware Certified Professional - Data Center Virtualization).
We're seeking a highly experienced and technically proficient Principal Windows Architect to lead the design, implementation, and optimization of our enterprise IT infrastructure. This role requires an expert with overall 14-18 years of experience spanning Windows Server technologies, multi-cloud environments (Azure and IBM Cloud), and complex Software-Defined Storage (SDS) and hyper-converged solutions. The ideal candidate will be a strategic thinker capable of driving innovation, ensuring system reliability, and mentoring technical teams.
Key Responsibilities
Architectural Design and Strategy
- Lead the architecture, design, and roadmap planning for on-premises and cloud-based Windows Server and storage infrastructure.
- Develop high-level and low-level designs for enterprise solutions, ensuring they meet business requirements for scalability, resilience, security, and performance.
- Drive migration strategies for moving workloads from on-premises environments (Hyper-V, VMware) to Azure Cloud and IBM Cloud.
- Evaluate and recommend new technologies and solutions, particularly within the Software-Defined Storage and hyper-converged infrastructure space.
Technical Expertise and Implementation
Operations and Leadership
Required Qualifications and Skills
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Senior Administrator • Chennai, Tamil Nadu, India
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