Mark H.

About Mark H.

Lead Systems Engineer with 20+ years driving enterprise cloud and infrastructure operations across multi-site and global environments. Expert in designing, scaling, and securing hybrid architectures across Azure, AWS, VMware, and Windows/Linux platforms supporting thousands of users and large-scale production systems. Proven track record leading infrastructure operations in regulated environments aligned with HIPAA, FedRAMP, and NIST, enforcing security controls, improving compliance posture, and maintaining high availability across complex environments. Own end-to-end infrastructure strategy including cloud, virtualization, identity (Active Directory and Entra ID), storage, and disaster recovery. Lead high-impact incident response, act as escalation authority, and drive automation to reduce operational overhead and improve system reliability. Focused on building resilient, scalable, and secure systems while standardizing operations, optimizing performance, and enabling long-term infrastructure growth.

Experience

1. Senior Systems & Infrastructure Engineer

   Tropical Shipping

   Mar 2026 — Present · US

   Lead enterprise infrastructure operations supporting users and 500+ servers across multi-site environments, ensuring high availability and operational continuity.• Lead VMware infrastructure (vCenter, ESXi) across enterprise production environments, ensuring performance, scalability, and resiliency.• Architect and manage Windows Server environments (physical and virtual), driving stability, security, and operational efficiency.• Own Active Directory and Entra ID platforms, including identity lifecycle, Group Policy architecture, access control, and auditing.• Design and operate Azure-based hybrid infrastructure, including web workloads, identity integration, and cloud optimization.• Own enterprise storage and SAN environments, including HBA configuration, iSCSI, NAS, and Pure Storage flash arrays.• Act as Tier 3 escalation authority for infrastructure and network incidents, resolving high-impact production issues.• Own backup, restore, and disaster recovery strategy to ensure business continuity.• Drive patch management and software deployment across enterprise systems, improving compliance and reducing risk.• Own SharePoint and collaboration platform administration supporting enterprise operations.• Manage SQL Server environments, including performance monitoring and operational maintenance.• Establish infrastructure standards, documentation, and operational procedures to improve scalability and consistency.

Education

• Abu Dhabi University

  Bachelor’s Degree, Bachelor of Science in Computer Science

  2006 — 2010

Skills

• Switches
• Ios Support
• Microsoft Office
• Kaspersky Administration
• Domain Name System (Dns)
• Dynamic Host Configuration Protocol (Dhcp)
• Vpn
• Norton Ghost
• System Administration
• Management
• Exchange 2010/2007/2003
• Dns
• Mcse 2003
• Dhcp
• Windows 7
• Analysis
• Remote Administration
• Active Directory
• Xp
• Computer Hardware
• Windows Server
• Hardware
• Ccna
• Windows
• Mysql
• Wireless Networking
• Project Management
• Network Administration
• Print Servers
• Linux
• Networking
• Windows Server 2008
• Technical Support
• Dynamic Dns
• Troubleshooting
• Windows Xp
• Virtual Private Network (Vpn)
• Windows 3.11
• Windows 2000
• Windows 98