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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Infrastructure Engineer L3 (Virtualization) - **Company:** ITTCONNECT INC - **Location:** Latham, NY, United States (Remote available) - **Experience:** Expert - **Salary:** $97,000.0 - $145,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Cloud Computing, VMware ESX Servers, Failover Clustering, Firmware, Hyper-V, Multipath I/O, Python (Programming Language), Kernel-Based Virtual Machine, Linux System Administration, Routing, Network Virtualization, Performance Tuning, PowerCLI, Broadcom, Storage Virtualization, VCloud, Virtual Local Area Networks, Virtualization Technology, VMware VSphere, SSL Certificate Management, Load Balancing, Computer Network Operations, Hyperconverged Infrastructure, Information Technology, Vcenter, Vmware - **Published:** October 7, 2026 - **Apply:** https://www.builtincolorado.com/job/senior-infrastructure-engineer-l3-virtualization/11536140?handler=ApplyRedirect ## About the Role * 12+ years in infrastructure engineering with at least 4 years administering enterprise VMware environments, in roles where you owned the platform rather than only consumed it. * MUST BE fluent in English * Hands-on administration of VMware Cloud Foundation 9 or vSphere Foundation 9 including NSX, or deep vSphere 8 administration (ESXi, vCenter, HA and DRS, vMotion, distributed switches, vSAN) with the aptitude to certify on VCF 9 in your first year. * Working knowledge of NSX operation: overlay segments, distributed firewall, Tier-0 and Tier-1 gateways, and traffic troubleshooting. * Strong Windows and Linux server administration as it relates to guest OS, drivers, and tools lifecycle. * Solid understanding of the storage and networking layers beneath virtualization, including shared storage protocols, VLANs, MTU, routing, and multipathing. * Automation ability using AI tooling, scripting (PowerCLI, Python, or an equivalent), and direct work against platform APIs. * Experience writing formal root cause analyses and working inside a structured change management process. * Clear client-facing communication and the ability to work independently across many client environments at once without losing track of any of them. * Prior MSP or other multi-client experience, ideally supporting several customer environments at once. * Associate's or bachelor's degree in information technology or a related field, or equivalent hands-on experience. Preferred Qualifications: * VMware certifications such as VCP-VCF Administrator, VCP-DCV, or VCP-NV, or a comparable virtualization certification. * Hands-on experience administering a KVM-based platform or Microsoft Hyper-V with Failover Clustering. * Experience with VMware Aria Operations or similar for capacity and performance management, and with hyper-converged hardware such as Dell VxRail or PowerFlex. ## Description Be an Early Applicant Remote Hiring Remotely in USA Senior level Remote Hiring Remotely in USA Senior level Operates and maintains enterprise virtualization platforms across multiple client environments. Responsibilities include VMware Cloud Foundation, NSX, ESXi, vCenter, vSAN, capacity planning, performance troubleshooting, lifecycle management, incident leadership, automation, migrations, root cause analysis, change management, documentation, and client communication. The role also supports KVM and Hyper-V environments, leads virtualization projects, and mentors junior engineers. The summary above was generated by AI, The Senior Infrastructure Engineer (Virtualization) is a hands-on engineering role in our Managed Services team. You will own the operation and health of the virtualization platforms running our clients' workloads: cluster and host lifecycle, capacity and performance tuning, NSX network and security policy administration, and acting as technical lead when a platform-level incident is live. You will work alongside storage, network, and service desk engineers, supported by a global network operations center that handles first-line monitoring and triage. Our core platform is VMware Cloud Foundation 9 with NSX, and this is an administration and operations role rather than an installation role. If you have deep vSphere 8 experience but have not yet worked in VCF 9 or VVF 9, we will train and certify you on it. Experience operating KVM-based or Hyper-V environments is a plus as more clients run mixed estates., * Operate NSX day to day, including segments, distributed firewall policy, gateways, load balancing, and troubleshooting east-west and north-south traffic. * Manage ESXi host, vCenter, and vSAN lifecycle including patching, firmware alignment, certificate management, and capacity planning. * Diagnose and resolve performance and availability problems across compute, storage, and the virtual network, and drive them to root cause. * Serve as technical lead during platform-level incidents, coordinating with clients, internal teams, and Broadcom or hardware vendor support. * Administer KVM-based or Hyper-V environments where clients run them, and support workload migrations between hypervisors. * Automate recurring operations work using scripting and the vSphere and NSX APIs. * Write formal root cause analyses, execute changes through structured change management, and maintain documentation of baselines, designs, and tuning decisions. * Lead technical delivery of virtualization projects including upgrades, consolidations, and migrations. * Give client stakeholders clear status reporting and practical capacity and best-practice guidance. * Mentor junior engineers and work with storage, network, and service desk teams so the platform fits the wider environment rather than sitting beside it., Lead client advisory engagements for nonprofit organizations, providing financial insights and operational guidance while managing multiple client teams and relationships. Mentor staff and drive change using technology and best practices. Top Skills: Bill.ComIntaactNetSuiteQuickbooks Online Wipfli Manager, Financial Reporting - Nonprofit Clients A Minute Ago Remote or Hybrid United States 97K-145K Annually Mid level 97K-145K Annually Mid level Cloud * Fintech * Software * Business Intelligence * Consulting * Financial Services Manage financial reporting for nonprofit clients, assisting with budgeting, forecasting, and improving processes. Coach staff and enhance technology integration. Top Skills: Quickbooks OnlineSage Intacct Wipfli