Virtual Infrastructure - Senior Systems Engineer

FactSet creates flexible, open data and software solutions for over 200,000 investment professionals worldwide, providing instant access to financial data and analytics that investors use to make crucial decisions.
At FactSet, our values are the foundation of everything we do. They express how we act and operate, serve as a compass in our decision-making, and play a big role in how we treat each other, our clients, and our communities. We believe that the best ideas can come from anyone, anywhere, at any time, and that curiosity is the key to anticipating our clients’ needs and exceeding their expectations.
ROLE OVERVIEW
The Virtualization Team is responsible for designing, deploying, and operating the virtualization layer that underpins FactSet's infrastructure — from traditional vSphere environments across our global data centers to a growing Kubernetes-native virtualization platform that serves as the foundation for our internal developer platform.
As a Senior Systems Engineer on this team, you will manage both our established VMware vSphere estate and help build and operate the next generation of our virtualization infrastructure using KubeVirt and Rancher Harvester. You will work closely with platform engineering, storage, networking, Kubernetes, and application teams to deliver reliable, high-performance infrastructure that supports thousands of workloads worldwide. The team has access to AI tools and actively uses them to accelerate automation development and improve incident response.
RESPONSIBILITIES
Administer and evolve our KubeVirt and Rancher Harvester hyperconverged infrastructure as part of our internal developer platform
Design, deploy, and operate vSphere environments across data centers, offices, global POPs, and remote client locations
Manage VM lifecycle across both traditional and Kubernetes-native virtualization platforms, including live migration, capacity planning, and cluster maintenance
Collaborate with platform and application teams to define and implement virtualization requirements for new and existing workloads
Monitor, troubleshoot, and resolve performance and stability issues across vSphere, KubeVirt, and Harvester environments
Design and maintain distributed storage systems (VSAN, Longhorn) supporting VM and container workloads
Automate infrastructure lifecycle management using PowerShell, PowerCLI, and Kubernetes-native tooling (Terraform, GitOps/ArgoCD/Flux)
Leverage AI tools to accelerate automation development, improve runbooks, and enhance incident response workflows
Create and maintain process documentation to ensure operational efficiency and availability
Plan and execute capacity expansions across both legacy and cloud-native virtualization stacks
Participate in a periodic 24x7 on-call rotation. Global follow the sun strategy minimizes non-work hours interruptions.
MINIMUM QUALIFICATIONS
5+ years of experience with VMware vSphere/ESXi administration
Foundational understanding of Kubernetes concepts and cluster operations, or strong motivation to develop this expertise
Experience with PowerShell and PowerCLI scripting and automation
Strong technical, analytical, and communication skills
Ability to manage multiple projects simultaneously and prioritize appropriately
CRITICAL SKILLS
Kubernetes fundamentals: CRDs, operators, RBAC, networking, persistent volumes, and cluster lifecycle management
Knowledge of VMware technologies: vCenter, vSphere/ESXi, and virtual infrastructure administration for mixed Windows and Linux guest environments
Experience with KubeVirt or similar VM-on-Kubernetes solutions (libvirt, KVM, QEMU)
Familiarity with hyperconverged infrastructure platforms, particularly Rancher Harvester
Understanding of distributed storage systems (Longhorn, Ceph, or similar) including replication, snapshots, and recovery
Advanced Kubernetes networking: CNI plugins, Multus CNI for multi-network VM configurations, network policies
Experience with infrastructure-as-code and GitOps workflows (Terraform, ArgoCD, Flux)
ADDITIONAL / HIGHLY DESIRED SKILLS
Knowledge of AWS/GCP public cloud services and hybrid infrastructure patterns
Experience with container platforms and container runtimes (containerd, Docker)
Familiarity with observability tooling: Prometheus, Grafana, and log aggregation platforms
Knowledge of TCP/IP networking, DNS, LAN/WAN, load balancers, and firewalls
Experience with non-vSphere hypervisors (KVM, Xen) beyond KubeVirt contexts
Administer and evolve our KubeVirt and Rancher Harvester hyperconverged infrastructure as part of our internal developer platform
EDUCATION
Bachelor's degree in Computer Science, Engineering, or equivalent experience
Company Overview:
FactSet (NYSE:FDS | NASDAQ:FDS) helps the financial community to see more, think bigger, and work better. Our digital platform and enterprise solutions deliver financial data, analytics, and open technology to more than 8,200 global clients, including over 200,000 individual users. Clients across the buy-side and sell-side, as well as wealth managers, private equity firms, and corporations, achieve more every day with our comprehensive and connected content, flexible next-generation workflow solutions, and client-centric specialized support. As a member of the S&P 500, we are committed to sustainable growth and have been recognized among the Best Places to Work in 2023 by Glassdoor as a Glassdoor Employees’ Choice Award winner. Learn more at www.factset.com and follow us on X and