Virtual Infrastructure - Senior Systems Engineer
Core
Design, deploy, and operate the virtualization layer underpinning FactSet's infrastructure, managing both traditional vSphere environments and a growing Kubernetes-native platform (KubeVirt, Rancher Harvester) to support thousands of workloads.
Role type
Senior Systems Engineer (Virtualization & Infrastructure)
Builds
Internal developer platform, global data center virtualization, and hybrid cloud-native infrastructure
Domain
Financial technology infrastructure, virtualization, and cloud-native systems
Required skills
VMware vSphere/ESXi administration, Kubernetes fundamentals, PowerShell/PowerCLI scripting, KubeVirt, Rancher Harvester, distributed storage (VSAN, Longhorn), infrastructure-as-code (Terraform, GitOps/ArgoCD/Flux), capacity planning, VM lifecycle management
Preferred skills
AWS/GCP public cloud services, container platforms (containerd, Docker), observability tooling (Prometheus, Grafana), TCP/IP networking, non-vSphere hypervisors (KVM, Xen)
Technologies
vSphere, ESXi, vCenter, KubeVirt, Rancher Harvester, Longhorn, VSAN, Terraform, ArgoCD, Flux, PowerShell, PowerCLI, Kubernetes, CNI plugins, Multus CNI
Responsibilities
Administer and evolve KubeVirt and Rancher Harvester hyperconverged infrastructure; Design, deploy, and operate vSphere environments across data centers and global locations; Manage VM lifecycle including live migration and cluster maintenance; Collaborate with platform teams to define virtualization requirements; Monitor, troubleshoot, and resolve performance issues across virtualization stacks; Design and maintain distributed storage systems; Automate infrastructure lifecycle management; Plan and execute capacity expansions; Participate in 24x7 on-call rotation
Seniority
Senior, hands-on IC