• Active Directory and Windows Server operating systems, Exchange, SharePoint, and System Center. • UNIX and Linux, including RHEL, CentOS, AMI, Debian, SuSE, Ubuntu, AIX, HP-UX, and Solaris. • Oracle, Microsoft SQL, IBM DB2, PostgreSQL, MongoDB, and MySQL design, deployment, maintenance, and reports. • Apache, IIS, NGINX, Tomcat, and PHP web platforms. • Remedy Service Desk, Zendesk, ManageEngine, ConnectWise, HEAT, RT, ServiceNow, and System Center Service Manager help desk platforms. • High-availability virtualization using VMware vSphere, KVM, and Hyper-V. • EMC, EqualLogic, Compellent, HP, NetApp, IBM, and Hitachi SAN, NAS, and other storage devices. • Dell, Lenovo, Sparc, IBM, and HP hardware expertise. • Enterprise computer software including Oracle, SAP, Sage, Salesforce, and Microsoft Dynamics AX ERP. • Public and private cloud architecture and capacity planning, deployment, administration, and maintenance, including SaaS, IaaS, and PaaS. Technologies used include Microsoft Office 365, Google G Suite, Amazon AWS, and Microsoft Azure, including on premise to cloud migrations. Applications include cloud file storage, DBaaS, NaaS, data collection / storage / analytics, and content delivery. • Citrix, VMware, Amazon, and Microsoft remote access technologies, including Horizon, XenApp / XenDesktop, and Amazon Workspaces. • Switching, routing, firewalls, load balancing, Wi-Fi, SD-WAN, site-to-site and remote access VPNs, MPLS and Metro Ethernet with Cisco, HP / Aruba, Juniper, Brocade, F5, Fortinet, Kemp, SonicWALL, and WatchGuard across multiple protocols for LAN and WAN connectivity. • Telecommunications and Voice over IP (VoIP), including Cisco, Avaya, Alcatel / Lucent, Skype for Business / Lync, Audiocodes, and Asterisk platforms, with unified messaging integration. • Server and workstation deployment and management, including provisioning and orchestration, using VMware, Symantec Ghost, Microsoft System Center, and Kickstart. • Backup and recovery planning / implementation / operations / and disaster recovery, using Veeam, Commvault, NetBackup and OpsCenter, Dell / EMC, Backup Exec, and Bacula. • Information Technology Infrastructure Library (ITIL) implementation and refinement. Full cycle technology development and implementation including design, testing, installation, troubleshooting, and repair. • Datacenter operations, including development, maintenance, optimization, and expansion of facilities. Architecture and implementation of redundant power, connectivity, security, and cooling solutions. Data center audit and remediation tasks. • Information security planning, implementation, monitoring, hardening, and investigations. Risk assessments, risk mitigation, and security penetration testing. Authentication, authorization, and accounting using RADIUS, LDAP, and Active Directory. Physical security integration with information technology. Data protection and retention planning, implementation, and management for all data types.