David G.

Senior IT Infrastructure Expert & Technology Consultant | 25+ Years in Network Administration, Cloud Migrations, Security & High-Availability Systems With over 25 years of hands-on experience as a Senior Network Administrator, IT Director, and founder/owner of Unite Innovations, I deliver reliable, secure, and scalable IT solutions that minimize downtime, enhance security, ensure compliance, and drive operational efficiency. I specialize in designing, deploying, and managing hybrid on-prem/cloud infrastructures for medical, financial, real estate, e-commerce, regulated industries, and more - freeing you to focus on growth while your systems run smoothly and securely. Core Services & Achievements: Architected high-availability environments with near-zero downtime using Hyper-V, Proxmox (VMs & LXC), and clustering technologies. Led complex server & firewall migrations (physical-to-virtual, on-prem to cloud) with minimal business disruption. Managed large-scale Active Directory environments: users, groups, GPOs, DNS, DHCP. Deployed and optimized cloud solutions on Google Cloud Platform (GCP), Microsoft Azure, and Microsoft 365—including secure migrations, hardening, and compliance. Designed custom storage & backup systems: NAS/SAN (Synology, QNAP, TrueNAS), iSCSI/LUN, robust backup strategies, data recovery, and secure disposal. Implemented enterprise-grade network security: pfSense, UniFi, Omada, OpenWRT, Untangle, Sophos UTM/firewalls, VPNs, antivirus/anti-malware, IAM, wireless networks (UniFi, Omada, OpenWRT), and MDM. Automated IT workflows, monitored performance, and optimized resources for cost savings and productivity. Provided full-spectrum support: Windows/Linux servers (Ubuntu, CentOS, Red Hat), workstations, VoIP telephony, surveillance & access control systems, QuickBooks/Drake Tax server hosting. Specialized & Industry-Specific Expertise: E-commerce & Logistics Automation - ShipStation setup, order fulfillment automation, multi-carrier integrations, and workflow optimization to streamline shipping and reduce manual processing. Regulated Environment Monitoring - Elpro environmental monitoring systems (temperature, humidity, GxP-compliant logging) for pharma, biotech, healthcare, and cold-chain compliance. Education & Device Management - Senso.cloud implementation for classroom/IT monitoring, student safety, web filtering, and remote device management in schools. Emerging & Secure Technologies - Private AI server deployment; cryptocurrency infrastructure (secure hardware, wallets, nodes, basic DeFi setups, mining rig management, and security best practices). Technical Expertise Highlights: Networking & Security - TCP/IP, IPv4/IPv6, VLANs, managed switches, Wi-Fi (802.11 standards), firewalls/UTM, VPNs, MDM. Virtualization & Cloud - Hyper-V, Proxmox, Azure, GCP, Microsoft 365. Storage & Backup - NAS/SAN, iSCSI, disaster recovery, secure data handling. Systems Administration - Windows Server (all versions), Linux/Unix, Active Directory. Other Tools - VoIP, surveillance systems, website administration + SEO, internet reputation management. I'm resourceful, detail-oriented, and committed to exceeding expectations-whether it's a one-time migration, ongoing managed IT, or full infrastructure overhaul. Clients value my proactive approach, clear communication (no jargon), and ability to deliver secure, high-performance solutions.