Mostafa El-Tablawy

Results-driven System & Security Administrator and Technical Team Lead with over 10 years of hands-on expertise architecting, hardening, and scaling enterprise IT infrastructures. Proven track record in maintaining high availability across mission-critical systems, deploying robust defense architectures (FortiGate, F5 WAF, Kaspersky EDR), and leading technical teams toward seamless disaster recovery and operational continuity.

Technical Team Leader / System & Security Administrator

(2019-01)

• Managed, secured, and scaled enterprise infrastructure supporting 1,000+ end-users, maintaining 99.9% uptime across Windows Servers, Domain Controllers, and Exchange environments.
• Administered critical cybersecurity platforms including FortiGate firewalls, F5 load balancers, Forcepoint, and Kaspersky EDR, successfully reducing endpoint vulnerabilities and mitigating advanced threats.
• Enforced comprehensive security policies, system hardening, access control (Item-Level Targeting GPOs), and threat protection measures across the enterprise.
• Directed backup and disaster recovery operations using BackupExec and NetBackup, executing routine restoration tests to ensure zero data loss and robust business continuity.
• Provided technical leadership in infrastructure planning, root-cause troubleshooting, documentation, and operational support for cross-functional IT teams.

Senior System Engineer / Infrastructure Administrator

(2016-01 - 2019-12)

• Supported and maintained core infrastructure services, including Exchange Server Database Availability Groups (DAG), Active Directory forests, Hyper-V/VMware virtualization clusters, and backup systems.
• Executed system upgrades, security patching, and preventive maintenance cycles to optimize performance and harden network environments.
• Collaborated with security teams to ensure secure network operations, air-gapped network patching via WSUS/WDS, and optimized enterprise services.
• Developed robust PowerShell scripts to automate administrative tasks such as user provisioning, group management, and folder permissions, reducing manual overhead by 40%.

System Support Engineer

(2014-01 - 2016-12)

• Assisted in managing Windows Server environments, domain services (DNS/DHCP via InfoBlox), and core enterprise applications.
• Provided tier-2 technical troubleshooting and rapid-response support for local and remote infrastructure operations.
• Participated in the deployment, configuration, and routine maintenance of hardware and software IT services.

Bachelor - Faculty of Computers and Information - Helwan University (2007-01 - 2011-12)