System Administrator
Core ScientificAustin, United States
Full Time
Posted October 12, 2026
$90k - $134k· Est.
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Application opens on company website
Listing evidence and provenance
- Source
- Workday View original listing
- Freshness
- Open in the current public read path; this is not an employer guarantee.Last observed October 14, 2026
- Classification
- Modern power-system classification not yet published for this listing.Legacy source industry field: Power Generation
- Pay provenance
- Estimated benchmark; not employer-provided
Job Description
Minimal travel between data centers may be required as needed.
Key Responsibilities
- We're looking for a strong generalist Systems Administrator whose core expertise is Active Directory. You'll own the health, security, and day-to-day administration of our AD environment — domain controllers, Group Policy, DNS/DHCP, and the directory structure that everything else depends on — while contributing across the broader IT environment as a versatile, hands-on administrator.
- Directory services sit at the foundation of how our users, devices, and applications work together, so you'll partner closely with identity, security, and endpoint teams to keep the environment clean, well-governed, and moving toward modern best practices.
- This position is fully on-site at our downtown Austin office.
- Own day-to-day Active Directory administration: user, group, and computer object management, OU design, delegation, and directory hygiene
- Design, maintain, and troubleshoot Group Policy across the environment, keeping GPOs consolidated, documented, and effective
- Administer and maintain domain controllers, including replication health, FSMO roles, backups/recovery, and patching
- Manage core network services tied to the directory: DNS, DHCP, and site/subnet topology
- Harden and secure the directory: tiered administration, least-privilege delegation, privileged account management, and remediation of common AD attack paths
- Support hybrid identity, including directory synchronization to cloud identity platforms and clean attribute/data flows
- Automate routine directory tasks and reporting with PowerShell
- Support day-to-day IT operations across the environment: escalated troubleshooting, server and SaaS administration, and infrastructure projects as needed
- Participate in audits and access reviews with clear evidence from the directory
- Document architecture, processes, and runbooks so the environment is well understood and supportable
- Foster open, respectful, and professional communication directly within the team as well as with co-workers/ teammates and leaders across the organization.
- Performs other duties as assigned.
- undefined
Requirements
- Okta administration or integration experience (SSO, MFA, lifecycle management)
- Microsoft 365, Entra ID, and Intune administration experience
- Jamf Pro experience for macOS device management
- Slack workspace administration experience
- Jira Service Management (JSM) administration experience
- Exposure to Workday or other HRIS platforms as an upstream identity source
- Relevant certifications (e.g., Microsoft Certified: Windows Server Hybrid Administrator, Identity and Access Administrator)
- Reports To Director, IT
Ready to Apply?
Apply directly on Core Scientific's site
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