Sr. System Administrator

Overview

About the Role

We are seeking an experienced Sr. System Administrator to manage and support enterprise IT infrastructure. The ideal candidate should have strong expertise in Active Directory, Windows Server Administration, Microsoft 365, SCCM, DNS, DHCP, Group Policy, and overall infrastructure management. The role requires excellent troubleshooting skills and the ability to maintain a secure, highly available, and efficient IT environment.

Key Responsibilities

• Implement, manage, and monitor Active Directory (AD) infrastructure.
• Administer and maintain Windows Server environments.
• Configure and manage Group Policy Objects (GPOs).
• Manage Active Directory Sites and Replication.
• Administer Active Directory Certificate Services (ADCS).
• Monitor and maintain DNS infrastructure.
• Configure and manage DHCP services with High Availability.
• Monitor server health and ensure maximum uptime.
• Manage Print Servers and File Servers.
• Administer and maintain SCCM (Microsoft Endpoint Configuration Manager).
• Perform End User Computing (EUC) support and troubleshooting.
• Manage Microsoft 365 (O365) administration, including user accounts, licensing, and Exchange Online.
• Perform server patching, upgrades, and preventive maintenance.
• Troubleshoot complex infrastructure and system issues.
• Ensure backup, security, and compliance of infrastructure services.
• Maintain system documentation and standard operating procedures (SOPs).
• Collaborate with internal IT teams to ensure seamless infrastructure operations.
• Required Skills
• Active Directory Administration
• Windows Server Administration
• Group Policy (GPO)
• AD Sites & Replication
• Active Directory Certificate Services (ADCS)
• DNS & DHCP Administration
• SCCM Administration
• Microsoft 365 (O365) Administration
• Print Server & File Server Management
• Server Health Monitoring
• End User Computing (EUC) Support
• Infrastructure Monitoring
• Windows Security & Access Management
• Backup & Disaster Recovery
• Troubleshooting & Root Cause Analysis
• Excellent communication and problem-solving skills

Preferred Candidate Profile

• Minimum 5 years of experience in Windows Server and Infrastructure Administration.
• Strong experience with Microsoft technologies and enterprise infrastructure.
• Ability to troubleshoot and resolve critical infrastructure issues.
• Good understanding of IT security best practices.
• Strong analytical, documentation, and communication skills.

Why Join Us?

• Competitive salary package
• Opportunity to work with enterprise IT infrastructure
• Professional growth and learning opportunities
• Collaborative and supportive work environment
• Exposure to the latest Microsoft technologies

Pay: ₹44,000.00 - ₹50,000.00 per month

Benefits:

• Flexible schedule
• Paid sick time
• Paid time off
• Provident Fund

Ability to commute/relocate:

• Kolkata, West Bengal: Reliably commute or planning to relocate before starting work (Preferred)

Education:

• Bachelor's (Preferred)

Experience:

• Senior leadership: 5 years (Preferred)

Language:

• English (Preferred)
• Bengali (Preferred)
• Hindi (Preferred)

Location:

• Kolkata, West Bengal (Preferred)

Shift availability:

• Day Shift (Preferred)

Willingness to travel:

• 50% (Preferred)

Work Location: In person