Senior Systems Administrator

Salary: $72,000 - 112,000 per year Requirements:

• 7+ years of systems administration experience, including at least 3 years in a senior or lead position
• Deep hands-on expertise with Windows Server and Linux, such as RHEL or Ubuntu
• Strong experience with virtualization platforms, including VMware, Hyper-V, KVM, or hyperconverged solutions
• Working knowledge of Active Directory, Entra ID/Azure AD, DNS, DHCP, and Group Policy
• Experience administering at least one major cloud platform: AWS, Azure, or GCP
• Proficiency in scripting and automation using PowerShell, Bash, or Python
• Working knowledge of networking fundamentals, including TCP/IP, VLANs, firewalls, VPNs, and load balancing
• Proven experience with backup, recovery, and disaster recovery planning
• Clear written and verbal communication skills, including the ability to explain technical issues to non-technical colleagues
• A bachelors degree in a related field or equivalent practical experience

• 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
• Oversee identity and access management across Active Directory, Entra ID/Azure AD, SSO, and MFA, and apply least-privilege practices
• Design and maintain backup, disaster recovery, and business continuity plans, and test them regularly
• Monitor system health, respond to incidents, lead root-cause analyses, and prevent recurring issues
• Automate repetitive tasks and configurations using PowerShell, Bash, Python, or infrastructure-as-code tools
• Partner with Security on vulnerability remediation, system hardening, audit evidence, and compliance requirements
• Lead infrastructure projects, including migrations, platform upgrades, and new tool rollouts, from scoping through delivery
• Maintain clear documentation, runbooks, and network and system diagrams
• Mentor junior administrators and act as the IT teams senior escalation point
• Participate in a shared on-call rotation and occasional after-hours maintenance windows

• AWS
• Active Directory
• Azure
• Bash
• Cloud
• GCP
• Hyper-V
• Support
• KVM
• Linux
• Load Balancing
• Network
• PowerShell
• Python
• RHEL
• Security
• TCP/IP
• Ubuntu
• VMware
• Windows
• VPN

More:

We are collaborating with hackajob to connect exceptional professionals with Scale Computing. We build edge computing, virtualization, and hyperconverged infrastructure that keeps critical applications running across data centers and remote sites, making IT simpler, more resilient, and easier to manage at scale. In this Senior Systems Administrator role, you will own the reliability, security, and performance of the infrastructure our teams rely on, reporting to our VP of Platform Infrastructure and partnering closely with IT, Security, Engineering, and Support. We are an equal opportunity employer and welcome applicants of all backgrounds.

last updated 42 week of 2026