Wintel Administrator

Tata Consultancy Services; Mumbai; On-site; INR 3,000,000 - 5,000,000; Full time

Job summary

Tata Consultancy Services in Mumbai seeks an experienced Senior Windows Administrator to lead and manage large Windows Server environments, including 2016/2019/2022, across production and non-production systems.

You will act as a Level 3 escalation point, drive automation with PowerShell, ensure high availability, security, and end-to-end lifecycle management, and mentor L1/L2 teams while coordinating with AD, DNS/DHCP, and core services.

Qualifications

• Bachelors degree in computer science, IT, or a related field (or equivalent experience).
• 8-14 years of experience in Windows server administration (depending on level).
• 3+ years in a Lead or Senior Windows Administrator role.
• Relevant certifications preferred: AWS and Nutanix certification is required.
• PowerShell or Automation Certifications.

Responsibilities

• Lead and manage Windows Server environments (2016 / 2019 / 2022) across production and nonproduction systems.
• Act as L3 escalation point for complex Windows infrastructure issues.
• Ensure high availability, performance, security, and stability of Windows platforms.
• Own endtoend Windows infrastructure lifecycle management.
• Design, administer, and troubleshoot Active Directory (AD DS) environments.
• Manage and optimize Group Policy Objects (GPOs).
• Administer DNS, DHCP, and domain services.
• Manage FSMO roles, AD replication, and multidomain/forest environments.
• Oversee server build, patching, upgrades, and decommissioning.
• Ensure compliance with security hardening standards and baselines.
• Support vulnerability remediation and audit requirements.
• Plan and execute OS upgrades and migrations.
• Managing Infra using Prism Central and Prism element.
• Implement and maintain PowerShell automation to improve efficiency.
• Ensure effective monitoring and alerting of Windows environments.
• Analyse performance trends and proactively address capacity risks.
• Coordinate with monitoring and security teams for alert optimization.
• Lead resolution of major incidents related to Windows infrastructure.
• Perform and review Root Cause Analysis (RCA).
• Drive permanent fixes and preventive actions.
• Review and approve change requests for Windows systems.
• Mentor, guide, and technically enable L1/L2 administrators.
• Conduct technical reviews, knowledge transfer, and training sessions.
• Coordinate with network, security, application, and cloud teams.
• Communicate effectively with stakeholders, customers, and management.
• Create and maintain SOPs, runbooks, and technical documentation.
• Ensure adherence to ITIL processes and SLAs.
• Support audits, DR drills, and business continuity activities.

Skills

AWS Certification

Nutanix Certification

PowerShell

Education

Bachelors in CS/IT or related field

Tools

AWS Certification

Nutanix Certification

PowerShell

Job description

Role & responsibilities

• Bachelors degree in computer science, IT, or a related field (or equivalent experience)
• 8-14 years of experience in Windows server administration (depending on level)
• 3+ years in a Lead or Senior Windows Administrator role
• Relevant certifications preferred:
• AWS and Nutanix certification is required
• PowerShell or Automation Certifications

Technical Leadership & Operations

Lead and manage Windows Server environments (2016 / 2019 / 2022) across production and nonproduction systems

Act as L3 escalation point for complex Windows infrastructure issues

Ensure high availability, performance, security, and stability of Windows platforms

Own endtoend Windows infrastructure lifecycle management

Active Directory & Core Services

Design, administer, and troubleshoot Active Directory (AD DS) environments

Manage and optimize Group Policy Objects (GPOs)

Administer DNS, DHCP, and domain services

Manage FSMO roles, AD replication, and multidomain/forest environments

Build, Patch & Security

Oversee server build, patching, upgrades, and decommissioning

Ensure compliance with security hardening standards and baselines

Support vulnerability remediation and audit requirements

Plan and execute OS upgrades and migrations

Managing Infra using Prism Central and Prism element

Automation & Monitoring

Implement and maintain PowerShell automation to improve efficiency

Ensure effective monitoring and alerting of Windows environments

Analyse performance trends and proactively address capacity risks

Coordinate with monitoring and security teams for alert optimization

Incident, Problem & Change Management

Lead resolution of major incidents related to Windows infrastructure

Perform and review Root Cause Analysis (RCA)

Drive permanent fixes and preventive actions

Review and approve change requests for Windows systems

Team & Stakeholder Management

Mentor, guide, and technically enable L1/L2 administrators

Conduct technical reviews, knowledge transfer, and training sessions

Coordinate with network, security, application, and cloud teams

Communicate effectively with stakeholders, customers, and management

Documentation & Compliance

Create and maintain SOPs, runbooks, and technical documentation

Ensure adherence to ITIL processes and SLAs

Support audits, DR drills, and business continuity activities