John Peregrine

Championed internal system upgrades and managed VMware infrastructure across production, disaster recovery, and development environments. Administered switching, routing, and customer VPNs with redundant Cisco ASAs. Overhauled Veeam backups and integrated Microsoft 365 with Active Directory for cloud migrations. Provided expert remote support and coordinated after-hours maintenance.
• Achieved 45% cost reduction by optimizing Microsoft and VMware licensing.
• Enhanced backup systems to meet SLA requirements and improve recovery performance.
• Automated reporting and changes with PowerShell scripting for Windows and VMware.

Engineered cloud and on-premise migrations, upgrades, and support. Designed Microsoft 365 and Entra ID environments. Implemented virtualization services, fortified infrastructure security, and developed internal software applications. Maintained strong client relationships through account management and consultation.
• Saved $35K in third-party solution costs by designing a proprietary multi-factor authentication system.
• Developed internal software applications and IIS web services to enhance operations.
• Negotiated and secured contracts, expanding the client base with over 10 new customers.

Led migration of server systems to a new data center with VMware, EMC, Windows Server, and Cisco technologies. Deployed and managed network devices, wireless networks, and Active Directory integration with Microsoft 365. Implemented new software systems and managed hardware replacements.
• Upgraded or replaced over 150 workstations and POS endpoints.
• Migrated and consolidated on-premise infrastructure to a secure data center.
• Enhanced remote capabilities with new VPN and print solutions.

Managed diverse client environments, data center operations, and network infrastructure. Deployed new equipment and configured devices to optimize performance and communication. Supported hosted email services and maintained digital and VoIP phone systems.
• Implemented various backup and disaster recovery solutions, both cloud-based and on-site.
• Resolved 50+ client tickets daily, demonstrating technical proficiency and excellent customer service.

Designed and managed data center operations, including redundant network and server infrastructure. Deployed network load-balancing, clustering, and failover solutions. Developed production software and automation frameworks to streamline operations and reduce manual workloads.
• Automated call data record processing, reducing workload by over 90%.
• Developed distributed client-server software in C#.NET and created automation scripts in PowerShell and Linux shell.
• Engineered binary decoders and automated document generation engines for various applications.