Senior Site Reliability Engineer - US Federal (VDI & Infrastructure)

Workday Government supports U.S. federal agencies as they modernize their mission-critical operations. You will join the Infrastructure and Federal Platform Engineering team, a high-stakes operational group responsible for the reliability, security, and automation of our IL5-compliant cloud environments. This hybrid role bridges the gap between core Kubernetes-based platform engineering and the specialized operation of our Azure VDI environment. You will be part of a 24/7 on-call rotation where VDI is a first-class citizen of our infrastructure stack. This role will support one or more direct or indirect contracts with the U.S. Federal Government which, due to federal government security requirements, mandates that all Workday personnel working on the contracts be United States citizens (naturalized or native).

Responsibilities

Maintain health and high availability of Kubernetes-based platform through infrastructure automation and observability; Automate provisioning and configuration management using Terraform and Argo CD; Participate in 24/7 on-call rotation as Tier 2/3 escalation point for platform and VDI incidents; Implement industry standard methodologies and maintain STIG compliance across endpoints and cloud resources; Manage VDI endpoints using Microsoft Intune and perform monthly patching/security updates for custom golden images; Manage Microsoft Entra ID features including Conditional Access policies, Access Packages, and MFA registration (Passkeys/TAP); Monitor and respond to alerts from Microsoft Sentinel, Defender for Endpoint, and Defender for Cloud Apps; Troubleshoot automated user provisioning and manage pool-specific access controls to segregate user populations

Requirements

Minimum of 5 years of experience in SRE, DevOps, or Cloud Operations; At least 3 years of experience operating in high-security environments (DoD IL5, FedRAMP High, or GCC-High); Ability to obtain and maintain a U.S. Government TS/SCI w/CI Poly clearance; Must be a U.S. Citizen (naturalized or native) per federal contract requirements; Proficiency with Terraform and CI/CD tools (Argo CD); Deep hands-on expertise with Microsoft Entra ID (Conditional Access, Identity Governance) and Microsoft Intune; Experience with Windows 365 or Azure Virtual Desktop (AVD) in a production setting; Familiarity with Microsoft Sentinel and Defender for Endpoint; Strong technical writing skills for creating SOPs, architecture diagrams, and reliability practices

Nice to have

Active TS/SCI w/CI Poly clearance; Strong understanding of Kubernetes orchestration and container security; Proficiency in at least one language (Python, Go, or Ruby); Familiarity with Azure networking (VNets, NSGs, Azure Firewall) and ExpressRoute; Experience working in air-gapped cloud regions

Benefits

Eligible for Workday Bonus Plan or role-specific commission/bonus; Annual refresh stock grants; Comprehensive benefits; Flexible schedule under Flex Work