Windows Administrator L3

Role: Windows Administrator L3

Location: Remote

Hire type: Full-time

Profile Summary:

The Windows Server Engineer (L3) is a senior technical role responsible for designing, implementing, optimizing, and supporting enterprise level Windows Server infrastructure. This engineer handles major incidents, deep troubleshooting, automation, lifecycle management, and provides guidance to L1/L2 teams. The role requires extensive expertise across Active Directory, DNS/DHCP, DFS, Group Policy, virtualization, clustering, security, and Microsoft infrastructure services.

Position Requirements:

Technical Skills

• Key Responsibilities
• Install, configure, and manage Windows Server 2016/2019/2022 environments.
• Perform OS hardening, patching, and lifecycle management.
• Manage server roles such as AD DS, DNS, DHCP, Distributed File Services, IIS, Print Services, etc.
• Design and manage Group Policies, OU structures, and access control.
• Support ADFS, Azure AD Connect, and SSO integrations.
• Build and support Windows Failover Clusters.
• Manage Hyper-V, cluster shared volumes (CSV), and storage configurations.
• Troubleshoot high availability, quorum, and cluster resource issues.
• Administer Hyper-V and VMware vSphere environments (preferred).
• Implement and monitor server security baselines and hardening policies.
• Manage BitLocker, Windows Defender, firewall rules, and auditing.
• Ensure compliance with organizational standards (SOX, HIPAA, PCI, etc.).
• Create scripts using PowerShell for automation, reporting, and configuration tasks.
• Tune performance for CPU, memory, disk I/O, and network bottlenecks.
• Manage monitoring tools such as SCOM, SolarWinds, LogicMonitor, etc.
• Serve as Level 3 escalation for critical and complex server issues.
• Perform root cause analysis (RCA/PCA).
• Implement preventive measures and improve processes.
• Participate in 24x7 on call rotation as required.
• Prepare SOPs, architecture diagrams, knowledge articles, and change documentation.
• Mentor L1/L2 teams and provide technical leadership across projects.

Required Skills & Experience:

• 8+ years of hands-on experience in enterprise Windows Server environments.
• Expert knowledge of:
• Windows Server OS (2016 2022)
• Active Directory, DNS, DHCP
• Group Policy
• Failover Clustering
• PowerShell automation
• Strong understanding of:
• TCP/IP networking
• PKI / Certificates
• Storage (SAN/NAS)
• VMware and Hyper-V
• Other Requirements:
• Understanding of TCP/IP, SAN/NAS, and storage protocols.
• Windows Server Administration Certification is preferred.
• Working experience on ServiceNow.
• ITSM Best Practices.
• HealthCare industry experience is a plus.
• Knowledge of data center operations and best practices.
• A team player with a positive attitude and excellent interpersonal skills.
• Ability to understand and comply with business processes and procedures
• Ability to work in a fast-paced, dynamic environment.
• Collaboration with cross-functional teams between onshore and offshore