TangledComputer

VMware Certified Professional (VCP)

Our VMware expertise was validated through continuous certification across every major vSphere generation, covering both datacenter infrastructure and end-user computing:

Citrix Certified

Our Citrix expertise spanned from the early MetaFrame era through XenApp/XenDesktop 6.x, covering the core platform generations:

• Citrix MetaFrame XP / Presentation Server 3.0: Certified on the foundational application delivery platform that defined server-based computing. ICA protocol optimization, published application management, and farm architecture
• Citrix Presentation Server 4.0 – 4.5: Advanced application streaming, SmartAccess integration with Access Gateway, and Web Interface configuration for secure remote access
• Citrix XenApp 5.0: The rebranded platform with enhanced application virtualization, Citrix Receiver deployment, and EdgeSight monitoring for application performance across WAN links
• Citrix XenApp / XenDesktop 6.x: FlexCast delivery architecture, Machine Creation Services (MCS), Provisioning Services (PVS), and StoreFront configuration

Microsoft Certifications

MCSA on Windows NT 4.0, and MCSE on both Windows 2000 and Windows Server 2003. While the certifications were rooted in these earlier platforms, the expertise carried forward across every generation of Windows Server we managed through 2026:

• Active Directory Design & Administration: Multi-domain forest architecture, Group Policy design, site topology, replication management, and AD disaster recovery
• Windows Server Infrastructure: Deployment and management from Server 2003 through Server 2022, including Hyper-V, Failover Clustering, Storage Spaces, and WSUS
• Exchange Server & Messaging: Exchange deployment, DAG configuration, hybrid mail flow with Exchange Online, and migration to Microsoft 365
• Network Infrastructure: DNS, DHCP, NPS/RADIUS, PKI/Certificate Services, and Remote Desktop Services

Architecture Focus: On-Premises VMware Environments

TangledComputer's deepest architectural expertise was in designing and operating on-premises VMware environments purpose-built for SMB workloads. Our on-prem architecture practice covered:

• Cluster Design & Sizing: Right-sizing ESXi clusters based on actual workload profiling, ensuring proper CPU/memory ratios, HA admission control policies, and DRS automation levels that balanced performance with cost for SMB budgets
• Storage Architecture: Designing storage tiers from vSAN all-flash clusters for high-IOPS workloads to iSCSI SAN backends for bulk capacity, including storage policy-based management (SPBM) to automate VM placement
• Network Fabric Design: Architecting vSphere Distributed Switch topologies with proper VLAN segmentation, traffic shaping, Network I/O Control (NIOC) for QoS, and dedicated VMkernel portgroups for vMotion, vSAN, and management traffic
• Backup & DR Architecture: Designing RPO/RTO-aligned backup strategies using VADP-based solutions, vSphere Replication for site-to-site DR, and SRM (Site Recovery Manager) runbooks for automated failover
• Lifecycle Management: Establishing upgrade runbooks and patching strategies using vSphere Lifecycle Manager (vLCM) with cluster-level image management, firmware compliance baselines, and rolling upgrade procedures that maintained uptime
• Performance Optimization: Deep tuning of NUMA topology, transparent page sharing, balloon driver configuration, latency sensitivity settings for real-time workloads, and SIOC/SDRS for storage load balancing

Architecture Focus: Hybrid VMware Environments

As cloud adoption accelerated among St. Louis SMBs, TangledComputer architected hybrid environments that extended on-premises VMware infrastructure into the cloud while maintaining operational consistency:

• VMware Cloud on AWS Integration: Designing hybrid architectures that stretched vSphere clusters across on-premises datacenters and VMware Cloud on AWS, enabling workload mobility, cloud bursting, and DR-to-cloud with HCX for live migration
• Azure VMware Solution (AVS): Architecting hybrid deployments that connected on-prem vSphere environments to Azure VMware Solution for clients invested in the Microsoft ecosystem, with ExpressRoute connectivity and unified vCenter management
• Hybrid Networking: Designing L2 extension with HCX Network Extension, L3 routing between on-prem and cloud segments, NSX-T federated networking for consistent microsegmentation policies across sites, and SD-WAN integration for optimized cloud connectivity
• Unified Management & Monitoring: Deploying vRealize Operations (Aria Operations) and vRealize Log Insight across hybrid environments for single-pane visibility into capacity, performance, and cost across on-prem and cloud VMware infrastructure
• Hybrid Identity & Security: Extending on-premises Active Directory trust boundaries into cloud VMware environments, configuring NSX distributed firewalls with consistent security policies, and integrating with Entra ID for hybrid administrator access
• Disaster Recovery Architecture: Designing active-passive and active-active DR topologies between on-prem and cloud VMware environments using SRM and vSphere Replication, with automated runbook testing and documented recovery procedures
• Cost Optimization: Right-sizing hybrid deployments to avoid over-provisioning in the cloud while maintaining on-prem capacity for steady-state workloads, using reserved instances and burst capacity models tailored to SMB usage patterns