Server Administrator - (L3)

Job Title: Server Administrator L2/L3

Location: Hyderabad

Job Type: Full-time

Department: Infrastructure / Server Operations

Role Overview:

As an L3 Server Administrator, you will be responsible for design, deployment, administration, optimization, and troubleshooting of enterprise server environments (Windows and/or Linux). This is a senior-level position handling escalations, advanced problem-solving, automation, and close collaboration with virtualization, storage, and networking teams to ensure high availability and security of server infrastructure.

Key Responsibilities:

• Provide L3 operational support for Windows and/or Linux server environments.
• Install, configure, and maintain Windows Server (2016/2019/2022) and/or Linux distributions (RHEL, CentOS, Ubuntu, SUSE).
• Manage Active Directory, DNS, DHCP, Group Policy, WSUS, Certificate Services (for Windows).
• Handle patching, OS upgrades, and vulnerability remediation.
• Troubleshoot escalated incidents (OS, hardware, cluster, and integration issues).
• Manage high availability and clustering solutions (Failover Clusters, Always-On, Pacemaker, Corosync, etc.).
• Administer file/print services, IIS/Apache, NFS/SMB, and other server roles.
• Integrate and support VMware, Hyper-V, and cloud-based servers (Azure/AWS/GCP).
• Implement and monitor backup/recovery, DR strategies.
• Automate server operations using PowerShell, Bash, or Python scripting.
• Perform capacity planning, performance tuning, and security hardening.
• Maintain runbooks, SOPs, and documentation in line with ITIL practices.
• Participate in on-call support rotation and provide RCA for major incidents.

Required Skills & Experience:

• 6- 10+ years of experience in Windows/Linux server administration.
• Strong expertise in Active Directory, DNS, DHCP, Group Policy, clustering, and patch management (for Windows).
• Strong knowledge of Linux system services, package management, LVM, and SELinux/AppArmor.
• Familiarity with VMware/Hyper-V virtualization and integration with storage/SAN.
• Experience with monitoring and management tools (SCOM, Nagios, Zabbix, SolarWinds, etc.).
• Strong troubleshooting and root cause analysis skills.
• Knowledge of IT security standards (hardening, patch compliance, auditing).
• Scripting/automation experience with PowerShell, Ansible, Bash, or Python.

Preferred Qualifications:

• Microsoft Certified: Windows Server Hybrid Administrator Associate / MCSE.
• Red Hat Certified Engineer (RHCE) or Linux equivalent.
• Experience with cloud-based server administration (Azure/AWS/GCP).
• Familiarity with DevOps tools (Ansible, Puppet, Chef, Terraform).