1. Senior Server Administrator (Contract) - May 2026 to July 2026

Nityo Infotech | Dubai, UAE

Client: G4S – Higher Colleges of Technology (HCT), UAE

Duties & Responsibilities

• Administered enterprise Windows Server 2016, 2019, 2022, and 2025 environments supporting mission-critical academic and administrative services.
• Contributed to the Higher Colleges of Technology (HCT) Enterprise Domain Migration Project by participating in Active Directory integration, server migration, Group Policy implementation, DNS/DHCP configuration, user migration, and post migration support across multiple campuses.
• Managed enterprise identity services using Active Directory, Microsoft Entra ID, DNS, DHCP, and Group Policy, ensuring secure authentication and centralized administration.
• Supported infrastructure consisting of 300+ Windows Servers and 300+ Virtual Machines, maintaining high system availability and operational reliability.
• Administered VMware vSphere and Microsoft Hyper-V environments, optimizing virtual machine performance, resource allocation, and infrastructure scalability.
• Implemented enterprise backup and disaster recovery strategies using Veeam Backup & Replication, conducting regular recovery validation to ensure business continuity.
• Managed Microsoft 365 services, including Exchange Online, Microsoft Teams, SharePoint Online, and Intune.
• Automated routine administrative tasks using PowerShell, reducing manual effort and improving operational efficiency.
• Performed server hardening, security patch management, vulnerability remediation, antivirus deployment, and compliance activities aligned with ITIL best practices.
• Collaborated with cross-functional infrastructure teams to deliver server upgrades, migration projects, capacity planning initiatives, and enterprise infrastructure improvements while minimizing operational disruption.

2. Network System Specialist - July 2025 to Dec 2025

ARRISE | UAE

Duties & Responsibilities

• Designed and implemented enterprise infrastructure monitoring using Zabbix, Nagios, and Cacti, enabling proactive monitoring of servers, applications, and network devices.
• Administered TCP/IP networking, VLANs, routing, switching, and IP addressing to ensure stable and secure connectivity across distributed environments.
• Configured and maintained Cisco and MikroTik networking devices, firewall policies, VPN (IPSec/GRE), and secure remote access solutions.
• Performed Windows Server patch management, firmware upgrades, and preventive maintenance to improve security compliance and system reliability.
• Conducted infrastructure health assessments, capacity planning, and performance tuning to optimize server and network performance.
• Investigated and resolved critical network and infrastructure incidents using structured troubleshooting and root cause analysis.
• Collaborated with infrastructure, security, and application teams to maintain high availability and meet operational service level objectives (SLOs).

3. Information Technology Team Lead / Network Engineer L2 - Sep 2024 to Apr 2025

INSIGHTS Middle East | UAE

Duties & Responsibilities

• Led daily IT infrastructure operations, ensuring the availability and security of enterprise servers, network services, and end-user computing environments.
• Managed Windows Server infrastructure, Active Directory, DNS, DHCP, Group Policy, and Microsoft enterprise services.
• Configured and maintained Cisco ASA firewalls, MikroTik routers, VLANs, VPN connectivity, and Quality of Service (QoS) policies.
• Coordinated infrastructure security initiatives, vulnerability remediation, and compliance activities to strengthen the organization’s security posture.
• Delivered infrastructure upgrades, server deployments, and network improvements while minimizing operational downtime.
• Produced technical documentation, standard operating procedures (SOPs), and infrastructure diagrams to support operational excellence.

4. Team Manager - May 2025 to July 2025

Sunton Web Design LLC | Dubai, UAE

Duties & Responsibilities

• Managed IT operations and supervised technical support personnel responsible for enterprise infrastructure and user support.
• Led IT audits and compliance activities, identifying operational risks and implementing corrective action plans.
• Designed and enforced Group Policy standards to improve workstation security, software deployment, and endpoint management.
• Developed IT operational procedures, onboarding/offboarding processes, and documentation that improved service delivery and operational consistency.
• Mentored junior IT professionals, promoting technical development and continuous process improvement.

5. Team Leader – Information Technology - Jan 2019 to Jan 2024

Quantanite Bangladesh Ltd | Bangladesh

Duties & Responsibilities

• Led an IT team responsible for infrastructure administration, server management, network operations, and technical support across multiple business sites.
• Supported enterprise infrastructure serving 1,400+ users, maintaining high service availability and operational continuity. Administered Windows Server environments, Active Directory, DNS, DHCP, Group Policy, virtualization platforms, and enterprise Microsoft technologies.
• Implemented centralized monitoring solutions using Zabbix and Nagios, improving proactive incident detection and reducing service interruptions.
• Planned and managed backup, disaster recovery, and business continuity procedures using industry best practices. Managed endpoint security, firewall policies, antivirus deployment, and vulnerability remediation across enterprise infrastructure.
• Developed technical documentation and knowledge base articles, reducing incident resolution time and improving support consistency.
• Received Employee of the Year (2021) and Best Team Leader – IT (2021) in recognition of leadership, technical excellence, and operational performance.