Windows System Administrator

About the Role
We are looking for a skilled Wintel Administrator (L2) with 2–3 years of hands-on experience to manage and support our data center infrastructure, which includes a virtualized VMware environment, physical servers, database servers, and network/security appliances across LAN and DMZ zones. The ideal candidate will handle day-to-day server administration, virtualization management, backups, monitoring, and L2-level troubleshooting, while working closely with the infrastructure team on ongoing projects.
Key Responsibilities
• Manage and maintain Active Directory, File Server, Web Server (IIS, Apache, Nginx), and Application Servers
• Administer and support VMware ESXi hosts and vCenter (multi-host, multi-cluster environment) — VM provisioning, migration, snapshots, and resource allocation
• Manage physical server hardware (Dell PowerEdge, HP ProLiant) including out-of-band management via iDRAC
• Install, configure, troubleshoot, and back up database servers — MS-SQL, MySQL, MongoDB
• Manage server backups and vReplication for disaster recovery of critical VMs and databases
• Support and maintain monitoring tools (e.g., Zabbix) to track server/host performance, uptime, and alerts
• Install and configure new Windows, Linux, and desktop systems
• Install and troubleshoot Windows/Linux applications and software (VB, C#, .NET, Node.js-based apps, etc.)
• Support DMZ and LAN zone server management, coordinating with network/security team on firewall, load balancer, and VPN (Site-to-Site) configurations
• Assist with basic public cloud tasks (AWS) where hybrid/DR connectivity is involved
• Manage and troubleshoot LAN/DMZ switches, WAN links, and connectivity issues at a basic level
• Assist with patch management, deployment, and server/firmware upgrades
• Monitor and maintain server performance, availability, and health across physical and virtual infrastructure
• Respond to and resolve end-user issues escalated from Desktop Support (L1)
• Maintain accurate documentation of server inventory, IP allocations, configurations, and network diagrams
• Work on ongoing IT infrastructure projects as assigned
Required Skills & Qualifications
• B.Tech or equivalent degree in Computer Science, IT, or related field
• Minimum 2–3 years of hands-on experience as a Windows/Wintel Administrator
• Strong working knowledge of Windows Server administration (2012/2016/2019/2022)
• Hands-on experience with VMware ESXi and vCenter administration (multi-vCenter environment preferred)
• Experience with physical server hardware management — Dell PowerEdge / HP ProLiant, iDRAC/ILO remote management
• Hands-on experience with IIS, Apache, or Nginx web server management
• Experience with MySQL, MS-SQL, and MongoDB — installation, configuration, troubleshooting, and backup
• Good understanding of Active Directory, DNS, DHCP, and Group Policy
• Working knowledge of firewall, load balancer, and basic network/VPN concepts (Site-to-Site VPN, WAN, DMZ)
• Experience with server/VM backup and replication solutions for disaster recovery
• Exposure to monitoring tools such as Zabbix or similar
• Basic exposure to cloud platforms (AWS) for hybrid/DR connectivity
• Familiarity with installing and troubleshooting applications like VB, C#, .NET
• Ability to troubleshoot server hardware, OS-level (Windows/Linux), and virtualization issues
• Experience with patch management and firmware/server upgrade cycles
Soft Skills
• Strong troubleshooting and analytical skills
• Good communication skills to coordinate with end users, network team, and cross-functional teams
• Ability to work independently as well as escalate/collaborate with L3 when required
• Willingness to work on-call/rotational shifts if required
• Detail-oriented with a proactive approach to server monitoring, backups, and uptime management

Work arrangement
No