Senior Systems Administrator

Scale Computing builds edge computing, virtualization, and hyperconverged infrastructure that keeps critical applications running wherever our customers operate, from data centers to thousands of remote sites. We make IT simpler, more resilient, and easier to manage at scale, and we hold ourselves to the same standard internally.

About the role

Were hiring a Senior Systems Administrator to own the reliability, security, and performance of the infrastructure our teams depend on every day. Youll manage our server, virtualization, identity, and cloud environments, lead infrastructure projects end to end, and serve as the top escalation point for complex systems issues. This role reports to the VP of Platform Infrastructure and partners closely with IT, Security, Engineering, and Support.

What youll do

• Administer, patch, and maintain Windows and Linux servers across on-premises, virtualized, and cloud environments
• Manage virtualization and hyperconverged infrastructure, including capacity planning, performance tuning, and lifecycle upgrades
• Own identity and access management (Active Directory, Entra ID/Azure AD, SSO, MFA) and enforce least-privilege practices
• Design and maintain backup, disaster recovery, and business continuity plans, and test them on a regular schedule
• Monitor system health and respond to incidents, leading root-cause analysis and preventing repeat issues
• Automate repetitive tasks and configuration using PowerShell, Bash, Python, or infrastructure-as-code tools
• Partner with Security on vulnerability remediation, hardening, audit evidence, and compliance requirements
• Lead infrastructure projects such as migrations, platform upgrades, and new tool rollouts from scoping through delivery
• Maintain clear documentation, runbooks, and network and system diagrams
• Mentor junior administrators and serve as the senior escalation point for the IT team
• Participate in a shared on-call rotation and occasional after-hours maintenance windows