Muhammad Rafi
Riyadh,Saudi Arabia
Summary
Highly skilled Microsoft Active Directory Engineer with 20+ years of experience in designing, deploying, and managing Active Directory (AD), Group Policy, DNS and DHCP. Proven expertise in securing and optimizing AD environments, implementing automation, and ensuring high availability. Strong troubleshooting abilities and experience in hybrid cloud environments. Adept at collaborating with cross-functional teams to drive IT infrastructure improvements.
Overview
20
20
years of professional experience
1
1
year of post-secondary education
Work History
Senior systems engineer
Ibix Global Tech
Riyadh, Saudi Arabia
10.2019 - 09.2024
- Designed and implemented Active Directory architectures to support enterprise-wide identity management.
- Managed Group Policy Objects (GPOs) to enforce security policies and configurations across the organization.
- Integrated Azure AD with on-premises AD for a seamless hybrid identity environment.
- Implemented preventative maintenance protocols to reduce downtime.
- Oversaw installation of new hardware components, ensuring compatibility with existing systems.
- Worked closely with customers, internal staff and other stakeholders to determine planning, implementation and integration of system-oriented projects.
- Implemented AD security hardening best practices to mitigate vulnerabilities and improve compliance.
- Conducted AD migrations, domain consolidations, and upgrades, ensuring minimal downtime.
- Troubleshot and resolved AD replication, authentication, and access control issues.
Senior Systems Administrator (AD & Windows)
Tihama Systems
Jeddah, Saudia Arabia
09.2009 - 07.2019
- Managed and maintained Windows Server environments, focusing on AD and identity services.
- Facilitated faster problem resolution with comprehensive documentation of common system issues.
- Increased system security with routine software updates.
- Provided technical support for AD-related issues, collaborating with IT teams to ensure seamless operation.
- Implemented Disaster Recovery (DR) solutions for AD, reducing downtime in case of failures.
- Managed data backup processes for lost data prevention.
- Upgraded server software to reduce vulnerability to cyber threats.
- Installed new hardware to improve overall system performance.
- Monitored AD health and performance using built-in and third-party tools.
Systems administrator
Computer Sciences Corporation
Bristol, UK
03.2005 - 07.2008
- Led a successful AD domain migration for a company with 400 users, achieving near zero downtime.
- Ensured network efficiency by maintaining and updating system architecture.
- Optimised bandwidth usage by implementing traffic management policies.
- Upgraded server software to reduce vulnerability to cyber threats.
- Implemented disaster recovery solutions, minimising loss of vital company information during crises.
- Implemented Role-Based Access Control (RBAC) for a secure and efficient identity management system.
Education
Diploma - IT Strategy Management
London School of Business and Management
London UK 03.2004 - 02.2005
Skills
- Active Directory & Identity Management: AD DS, AD FS, Group Policy, DNS, DHCP, LDAP, Azure AD, AAD Connect
- Security & Compliance: AD Hardening, Multi-Factor Authentication (MFA), Conditional Access, Identity Protection
- Automation & Scripting: PowerShell, Azure Automation, Group Policy Automation
- Cloud & Hybrid Solutions: Azure AD, AAD Connect, Hybrid AD, Intune, Office 365
- Disaster Recovery & High Availability: Backup & Restore, AD Replication, AD Sites & Services
- Operating Systems & Virtualization: Windows Server (2012/2016/2019/2022), Hyper-V, VMware ESXi
- Monitoring & Troubleshooting: Event Logs, AD Diagnostics, SIEM tools, PerfMon
Languages
English
Fluent
Affiliations
- Playing Squash
Timeline
Senior systems engineer
Ibix Global Tech
10.2019 - 09.2024
Senior Systems Administrator (AD & Windows)
Tihama Systems
09.2009 - 07.2019
Systems administrator
Computer Sciences Corporation
03.2005 - 07.2008
Diploma - IT Strategy Management
London School of Business and Management
03.2004 - 02.2005
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