Subair Ali

Dedicated Systems Administrator with 13+ years of hands-on Windows Server infrastructure experience, with deep expertise in Active Directory (multi-domain environments, FSMO roles, GPO, DNS, DHCP), Exchange Server 2019 administration, Windows File Server and DFS, Veeam Backup & Replication, WSUS patch management, PKI and SSL certificate management, and PowerShell automation. Proven track record ensuring the availability, integrity, and performance of business-critical systems across enterprise MSP environments supporting multiple organisations simultaneously — a background explicitly valued for this role. Strong security-conscious approach to systems administration with extensive experience in GPO-enforced security standards, endpoint protection, vulnerability remediation, and change management.

Qatar-based and immediately available.

Senior IT Engineer - SystemRapid WLL - Doha, Qatar

(2014-11)

• Administered Active Directory forests and domains across enterprise multi-client environments — managing domain controllers, trust relationships, FSMO roles, forest and domain functional levels, OU structure, and delegation of administrative rights; monitored AD health, performed replication checks using repadmin and dcdiag, and conducted regular security and compliance audits.
• Designed, implemented, and maintained Group Policy Objects (GPOs) — enforcing security baselines, configuration standards, and compliance requirements across multi-site organisational hierarchies using Specops and native GPO tooling; managed user, group, and computer objects and troubleshot GPO application failures using gpresult and Group Policy Operational logs.
• Administered DNS zones and records supporting Active Directory environments — managing forward/reverse lookup zones, AD-integrated DNS, conditional forwarders, and split-brain DNS configurations; administered DHCP scopes, reservations, options, and failover configurations to support reliable IP address management across enterprise networks.
• Managed PKI and SSL certificate lifecycle — administering certificate templates, SSL certificate procurement, deployment, renewal, and revocation across internal services and endpoints; maintained certificate inventory and ensured no service disruptions from expired certificates; familiar with Active Directory Certificate Services (AD CS) architecture.
• Administered Microsoft Exchange Server on-premises and Exchange Online in hybrid configurations — managing mailbox databases, transport rules, connectors, mail flow troubleshooting, recipient configuration, distribution groups, and server health monitoring including storage capacity and certificate bindings.
• Administered Windows File Server environments including DFS namespaces and replication — ensuring data consistency and availability across sites; managed file share permissions, NTFS security, quotas, and storage capacity planning using File Server Resource Manager (FSRM).
• Administered Veeam Backup & Replication — managing backup jobs, replication tasks, retention policies, and recovery operations for virtual machines and critical systems; performed regular backup verification, restore testing, and disaster recovery drills; managed backup storage repositories and optimised storage using deduplication and compression.
• Managed WSUS patch management — administering patch approval workflows, Automatic Deployment Rules, Maintenance Windows, and compliance reporting; ensured timely and controlled deployment of security patches and updates across servers and workstations within agreed change management processes.
• Administered Microsoft SQL Server — performed installation, basic configuration, patch management, and service monitoring supporting SQL-dependent business applications; developed PowerShell scripts to automate AD provisioning, GPO reporting, Exchange mailbox management, certificate expiry monitoring, WSUS compliance, and backup job monitoring across enterprise environments.
• Administered VMware vSphere/ESXi/vCenter and Hyper-V — managed VM provisioning, resource management, and capacity planning; monitored overall system health and security posture; mentored junior engineers and end users on Active Directory, Exchange, DFS, backup, and certificate services; built SOPs and troubleshooting guides; participated in on-call rotation for after-hours incident response.
• Key Client Engagements: Qatar Airways (Saudi Arabia Region — IT Service Delivery Lead), Hamad International Airport – FMM Qatar (HIA), Doha Metro Rail Project, Burberry Security Improvement Program (90% success rate), FCC Constructions, Strukton Rail, Louis Berger Qatar (WSP).

Bachelor of Technology - Computer Science and Technology - Mahatma Gandhi University, College of Engineering (2008 - 2012)