Senior Systems Administrator

The Nuclear Company is seeking a Senior Systems Administrator to securely administer and scale Microsoft 365, Microsoft Entra ID, managed endpoints, AWS, and Windows/Linux server environments. This role serves as the primary administrator and Tier 3 escalation point for assigned platforms, remediates legacy configuration risks, and builds automation that makes provisioning, compliance evidence, and reporting repeatable. The Senior Systems Administrator partners with Infrastructure, Cybersecurity, HR, Legal, and Engineering to maintain reliable, auditable services and support the organization's compliance and audit-readiness objectives. The ideal candidate is a hands-on technical professional with a security-first mindset who moves effectively in a fast-paced environment and automates high-value, repeatable work.

• Hands-on experience with JAMF Pro for endpoint management, software deployment, and device lifecycle administration.
• Experience with zero-trust architecture, privileged identity management, or Microsoft Purview information-protection capabilities.
• Experience in a regulated or high-assurance environment such as nuclear, energy, defense, or the federal sector.
• Familiarity with frameworks and requirements such as NIST SP 800-53, CMMC, NRC cybersecurity guidance, or 10 CFR 73.54.
• Familiarity with automation or configuration-management tools beyond PowerShell, such as Bash, Python, Terraform, or Ansible
• Experience with NinjaOne or a comparable RMM platform; knowledge of ITIL or similar service-management practices; and experience with observability or AIOps platforms.

• Competitive compensation packages
• 401k with company match
• Medical, dental, vision plans
• Generous vacation policy, plus holidays
• Estimated Starting Salary Range The estimated starting salary range for this role is $121,000 - $143,000 annually less applicable withholdings and deductions, paid on a bi-weekly basis. The actual salary offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role.
• Export Control
• Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants.
• Recruiting Fraud Alert
• Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official
• @thenuclearcompany.com
• email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through
• our official careers page
• .