Senior Infrastructure Engineer; VMware & Cloud

Working as a Senior Infrastructure Engineer (VMware & Cloud) for a Randstad client in Washington, D.C., puts you at the center of critical infrastructure modernization. This role is a mix of high-level systems architecture and hands‑on technical leadership, specifically supporting core Amtrak sites. You will be responsible for the full lifecycle of enterprise virtualization—from drafting complex Bills of Materials (BoM) and designing net‑new ESXi clusters to managing high‑availability physical security clusters.

By bridging the gap between on‑premises VMware stacks and modern cloud identity through Azure AD (Entra), you will ensure the reliability, scalability, and security of transit‑critical technology environments in a fast‑paced, mission‑driven atmosphere.

• Architectural Design & Deployment: Lead the net‑new design, BoM specification, and full‑stack installation of VMware ESXi clusters across primary regional sites.
• Cluster Management: Maintain and optimize a high‑stakes physical security cluster consisting of 6 ESXi hosts and 15+ Windows Server 2022 VMs.
• Lifecycle Operations: Manage critical firmware upgrades, VMware core OS updates, and storage array maintenance to ensure 24/7 system availability.
• Performance Optimization: Conduct regular health checks, failover testing, and workload balancing to maximize resource allocation and HA (High Availability) stability.
• Data Protection & Recovery: Design, implement, and rigorously test comprehensive backup and disaster recovery solutions to ensure zero‑loss data integrity.
• Security & Compliance: Oversee vulnerability management and patch cycles while collaborating with security partners to harden the infrastructure.
• Documentation & Strategy: Create and maintain SOPs, best‑practice guides, and detailed system configuration diagrams for cross‑functional team alignment.

• Experience: 4+ years of dedicated expertise in designing, implementing, and managing VMware vSphere, ESXi, and iSCSI SAN storage.
• Core Infrastructure: Proficiency in Windows Server 2022, Linux OS, and fundamental networking protocols (TCP/IP routing, DNS).
• Identity & Cloud: Strong functional knowledge of Azure AD (Entra) and exposure to Azure Virtual Desktop (AVD) or VMware Horizon/Desktop.
• Storage Expertise: Hands‑on experience with SAN environments; specific familiarity with HPE Alletra storage arrays is highly desirable.
• Tooling: Experience utilizing Service Now for ITSM and familiarity with Citrix environments or Equinix/co‑lo facility procedures.
• Soft Skills: Proven ability to communicate complex technical specs to business partners and collaborate with diverse technology infrastructure teams.