The ideal candidate will have a minimum of five years’ experience to be a part of client's Infrastructure & Security team working out of their New York office. The Senior Systems Engineer will be responsible for configuring and maintaining virtual networking, administering System Center Virtual Machine Manager (SCVMM), and architect and manage Microsoft Hyper-V clusters. The ideal candidate will combine deep technical expertise with a strong understanding of security, compliance, and user experience in a legal or highly regulated environment.

Responsibilities:

• Architect and manage Microsoft Hyper-V clusters including live migration, failover clustering, and storage spaces direct (S2D)
• Administer System Center Virtual Machine Manager (SCVMM) for Hyper-V host management/logical networks/VM Provisioning and cluster lifecycle operations.
• Configure and maintain virtual networking including VM switches, VLANs, QoS, and SR-IOV
• Manage VM lifecycle including provisioning, snapshotting, backup integration, and decommissioning
• Performance-tune Hyper-V hosts and resolve complex hypervisor-level issues
• Implement Hyper-V replica for disaster recovery and business continuity
• Convert servers from VMware to Hyper-V
• Build and maintain server OS images
• Develop and maintain PowerShell automation to streamline infrastructure provisioning, operational workflow, health monitoring, reporting, and platform maintenance
• Hands-on experience with Cisco Server Management
• Administer and maintain Cisco Intersight for server lifecycle management, policy-based configuration, and UCS infrastructure health
• Ability to build and assign Cisco IMM domain and server profiles, policies, as well as manage firmware upgrades
• Design, administer, and maintain Active Directory domains, forests, and trusts across multi-site environments
• Manage Group Policy Objects (GPOs) for security baselines, software deployment, and environment configuration
• Design and implement Role-Based Access Control (RBAC) models aligned to least-privilege principles
• Perform AD health monitoring, replication troubleshooting, and schema management
• Implement and enforce AD tiering models and privileged access workstation (PAW) strategies
• Administer enterprise-grade DHCP infrastructure including scope management, failover, and high availability configurations
• Manage internal and external DNS zones, records, and conditional forwarding across hybrid environments
• Troubleshoot name resolution and IP address allocation issues across complex multi-VLAN networks
• Manage hybrid identity scenarios including Entra Connect sync, pass-through authentication, and seamless SSO
• Administer, maintain, and troubleshoot enterprise storage platforms including Pure Storage, NetApp, and Dell EMC Unity to ensure high availability, optimal performance, and reliable data access across production environments.
• Perform storage provisioning, capacity planning, firmware upgrades, and performance monitoring while supporting incident resolution and collaborating with infrastructure teams on backup, disaster recovery, and system integrations.

Qualifications:

• 5+ years of experience in Windows infrastructure engineering or architecture role
• Deep hands-on expertise with Microsoft Hyper-V in clustered, production environments (mandatory)
• Strong working knowledge of Active Directory, DNS, DHCP, and Windows Server administration
• Experience with Microsoft Entra ID and hybrid identity architectures
• Solid understanding of networking fundamentals (TCP/IP, VLANs, routing, firewall rules)
• Experience working in enterprise environments with a strong change management discipline
• Excellent written and verbal communication skills; able to document complex systems clearly
• Experience deploying and managing Guardicore Centra for network micro-segmentation and east-west traffic control