Alpha Computers

IT Administrator (System and Security)

TikTok • Freelance

Jan 2026 - Present • 6 mos

Core Responsibilities & Achievements: Infrastructure Migration: Leading the full-scale transition of staff from decentralized local accounts to a centralized Microsoft 365 and Microsoft Entra ID cloud environment. Security & Identity Management: Implementing Identity & Access Management (IAM) and Conditional Access policies to secure high-value client platforms (TikTok Business, etc.). Device Governance (MDM): Architected and deployed Microsoft Intune policies for Windows enrollment, ensuring all hardware meets enterprise security benchmarks before accessing company data. Data Protection (DLP): Configured Microsoft Purview to monitor login attempts and audit staff activity, preventing unauthorized data exfiltration and securing sensitive client credentials. Threat Protection: Managed Microsoft Defender for Endpoint and Office 365 to proactively block malware, phishing, and ransomware threats. Azure Administration: Configured and managed Azure Virtual Machines (VMs), Virtual Networks (V-Nets), and secure VPN gateways for a 100% remote workforce. IT Policy Leadership: Developed "Acceptable Use Policies" (AUP) and BYOD frameworks to balance staff privacy with corporate data security requirements. Managing 24/7 remote operations to ensure continuous uptime and immediate response for global business requirements.

Manager IT Support Assistant

Groupe GB • Full time

Oct 2021 - Jul 2025 • 3 yrs 9 mos

Strategic & Financial Management: Led the annual IT budgeting process with senior management (CFO/GM), ensuring resource allocation aligned with strategic platform upgrade roadmaps. • Cloud & Security Administration: Managed and maintained the entire Microsoft 365 ecosystem, implementing MFA, SSO, MDM/MAM policies across all endpoints to enhance organizational security posture. • Infrastructure Reliability: Designed, implemented, and assured Cloud-based Disaster Recovery (DR) and Backup strategies for critical systems, guaranteeing business continuity and minimal downtime. • Network & Hardware Oversight: Served as the technical lead for the entire network infrastructure, coordinating with Network Administrators to ensure high availability and optimal performance of the physical and virtual environment (servers, cabling, and server room integrity). • Client & Asset Lifecycle: Managed all IT aspects of staff transitions, including onboarding, system handover, asset documentation, and secure offboarding procedures in collaboration with HR. • Communication Systems: Ensured 24/7 operational continuity and provided expert support for all communication and security systems, including VOIP, IP Exchange, IP Cameras, and NVRs, maintaining seamless security staff coordination.

Seniors System Administrator

Park Lane London Properties • Full time

Nov 2015 - Oct 2021 • 5 yrs 11 mos

Operational Leadership: Provided Tier 3 technical escalation and leadership for a 6-member, shift-based IT team, ensuring consistent and expert support across all 24/7 hotel operations (130 rooms, 60 back-office users). • Infrastructure Reliability: Maintained and optimized critical server and network environments, successfully achieving 99.99% uptime for core systems (PMS and POS) essential for continuous hotel revenue generation. • Network & Guest Services: Designed, configured, and managed the high-capacity network infrastructure, ensuring reliable Guest Internet Access (HSIA) and seamless connectivity across all 130 guest rooms and public areas. • System Administration & Security: Served as the lead administrator for all Windows Server, virtualization platforms (VMware/Hyper-V), and critical hotel applications (PMS/POS), implementing robust patching and system hardening policies. • Business Continuity: Developed and regularly tested Disaster Recovery (DR) and Backup strategies to safeguard critical operational data and ensure rapid recovery capability in the event of major incidents. • Process Improvement: Created and enforced comprehensive Standard Operating Procedures (SOPs) for all IT shifts, significantly improving incident resolution times and ensuring team adherence to service level agreements (SLAs).