Overview

We are seeking an experienced Senior Server Administrator with strong expertise in Server Administration, Active Directory (AD), and on-premises Microsoft Exchange. The ideal candidate will have 5–10 years of experience managing enterprise server environments with a focus on stability, security, and performance. Experience with ADFS, PowerShell, and cloud platforms (AWS, Azure, GCP) is a strong advantage.

Responsibilities

Must-Have Skills

Active Directory (Mid-Level)

• Design, implement, and administer AD forests, domains, sites, and services.
• Create and manage AD Sites and Services, including new site/subnet configurations.
• Manage GPOs, OU structure, DNS/DHCP integration, replication, and AD health.
• Configure DHCP failover and create DHCP scopes.
• Configure and troubleshoot DFS and Start Menu redirection.

Server & Infrastructure Operations (Expert-Level)

• Perform server administration, OS installations, patching, and vulnerability remediation.
• Troubleshoot OS and application issues.
• Manage patching, performance monitoring, and server hardening.
• Oversee backups, disaster recovery drills, and incident response.
• Ensure compliance with IT security policies and industry standards.

Nice to Have

Exchange / M365 Administration

• Manage, configure, and maintain Exchange / M365 Environment.
• Handle mailbox provisioning, transport rules, mail flow and troubleshooting.
• Ensure high availability, backup, DR, and migration readiness.

Additional Skills

• Cloud platform knowledge (AWS, Azure).
• PowerShell scripting experience.
• ADFS / Authentication
  • Configure and maintain ADFS and SSO solutions.
  • Troubleshoot identity federation and cloud integration scenarios.

Qualifications

• 5–10 years of experience in enterprise server administration.
• Strong technical expertise in:
  • Active Directory (Sites & Services, FSMO roles, DNS, DHCP, GPOs)
  • Server & Infrastructure Operations (installation, troubleshooting, patching)
  • Exchange Server / M365 Administration.
• Good understanding of authentication and federation (ADFS, SSO, PKI).
• Excellent troubleshooting, analytical, communication, and documentation skills.