{"id":705818,"url":"https://alion.io/job/thenuclearcompany-senior-systems-administrator","title":"Senior Systems Administrator","company":{"id":684853,"name":"The Nuclear Company","domain":"thenuclearcompany.com","url":"https://alion.io/company/thenuclearcompany","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":76,"open_postings":9,"ghost_share":0,"stale_share":0.778,"repost_share":0,"time_to_fill_p50_days":63,"computed_at":"2026-10-25T05:49:26Z"}},"role":"DevOps","role_family":"DevOps","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Columbia, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":121000,"max":143000,"currency":"USD","period":"year","gross":null,"usd_annual":143000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Active Directory","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Bash","optional":false},{"name":"Configuration Management","optional":false},{"name":"DHCP","optional":false},{"name":"DLP","optional":false},{"name":"DNS","optional":false},{"name":"Linux","optional":false},{"name":"Microsoft Entra ID","optional":false},{"name":"PowerShell","optional":false},{"name":"Python","optional":false},{"name":"SharePoint","optional":false},{"name":"TCP/IP","optional":false},{"name":"Windows","optional":false},{"name":"Windows Server","optional":false},{"name":"AIOps","optional":true},{"name":"Ansible","optional":true},{"name":"CMMC","optional":true},{"name":"ITIL","optional":true},{"name":"Terraform","optional":true},{"name":"Zero Trust","optional":true}],"status":"live","first_seen_at":"2026-09-01T13:18:39Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-25T17:27:16Z","board_verified":true,"closed_at":null,"days_open":54,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":54},"description":"The Nuclear Company is the fastest growing AI tech-enabled startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy.\nWe operate with an AI-first mindset. Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence.\nWe hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before. Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values-Transparency, Responsibility, Unity, Scrappy, and Tenacity -guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate. TRUST is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission.\nAbout the role\nThe 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.\nResponsibilities\nMicrosoft 365 and Identity Administration\nAdminister and securely scale Microsoft 365, including Exchange Online, SharePoint Online, mail flow, retention, sharing, and licensing.\nAdminister Microsoft Entra ID, SSO, MFA, Conditional Access, role-based access control, privileged access, and user lifecycle processes.\nAudit user and administrator accounts, security groups, roles, and licenses; remediate orphaned identities, excessive access, and legacy configuration issues.\nConfigure and operate assigned DLP and insider-risk technical controls in partnership with Cybersecurity and Legal and in accordance with approved policies and applicable requirements.\nEndpoint and Device Lifecycle Management\nStandardize enrollment and compliance through Intune across Windows, macOS, and iOS, and use NinjaOne or another approved RMM platform for supported endpoint monitoring and management.\nMaintain device naming, security baselines, configuration policies, patching, software deployment, inventory accuracy, and remediation workflows.\nSupport the complete device lifecycle, including onboarding, refresh, reassignment, and secure offboarding.\nCloud and Server Administration\nAdminister and maintain Microsoft Azure and AWS environments, with Azure serving as a primary enterprise platform. Establish scalable standards across both platforms for identity and access management, security configuration, logging, monitoring, backup, and recovery to support current operations and future growth.\nAdminister Windows Server and Linux environments, including Active Directory, Group Policy, DNS, DHCP, system hardening, patching, and operational monitoring.\nMaintain system backup and recovery procedures, perform documented restoration tests, and support execution of disaster recovery plans owned by the Manager, Infrastructure & Operations.\nAutomation and Process Improvement\nBuild PowerShell automation, supplemented by Bash or Python where appropriate, for provisioning, compliance validation, reporting, and routine administration.\nDevelop repeatable, scalable processes for system deployment, configuration management, and lifecycle administration.\nUse approved AI-assisted tools responsibly to improve scripting, troubleshooting, documentation, and operational reliability.\nMaintain current procedures, system documentation, runbooks, and evidence needed for operational continuity and audits.\nTier 3 Escalation and Cross-Functional Support\nServe as the Tier 3 escalation point for complex Microsoft 365, identity, endpoint, AWS, and server issues within the role's assigned scope.\nLead multi-system troubleshooting and coordinate handoffs to Infrastructure, Network, Cybersecurity, application owners, or vendors when issues cross ownership boundaries.\nPartner with HR, Legal, Engineering, and other business functions on onboarding, offboarding, access, automation, and audit-readiness initiatives.\nProvide technical guidance and reusable troubleshooting documentation to IT Support Specialists.\nExperience\nBachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience, plus at least 5 years of progressive systems administration experience.\nStrong Microsoft 365 and Microsoft Entra ID administration experience, including Exchange Online, SharePoint Online, Conditional Access, security groups, RBAC, licensing, and identity lifecycle management.\nHands-on endpoint and server administration experience using Intune across Windows, macOS, and iOS; Windows Server, Active Directory, and Group Policy; and familiarity with RMM concepts.\nAdvanced PowerShell automation skills, a solid command of networking fundamentals (TCP/IP, DNS, DHCP, and VLANs), and a disciplined troubleshooting approach for complex, multi-system issues; ability to use approved AI-assisted tools responsibly in technical workflows.\nPreferred Experience\nHands-on experience with JAMF Pro for endpoint management, software deployment, and device lifecycle administration.\nExperience with zero-trust architecture, privileged identity management, or Microsoft Purview information-protection capabilities.\nExperience in a regulated or high-assurance environment such as nuclear, energy, defense, or the federal sector.\nFamiliarity with frameworks and requirements such as NIST SP 800-53, CMMC, NRC cybersecurity guidance, or 10 CFR 73.54.\nFamiliarity with automation or configuration-management tools beyond PowerShell, such as Bash, Python, Terraform, or Ansible\nExperience with NinjaOne or a comparable RMM platform; knowledge of ITIL or similar service-management practices; and experience with observability or AIOps platforms.\nBenefits\nCompetitive compensation packages\n401k with company match\nMedical, dental, vision plans\nGenerous vacation policy, plus holidays\nEstimated Starting Salary Range\n 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. \nEEO Statement\n The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination.\nExport Control\nCertain 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.\nRecruiting Fraud Alert\nYour 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.\nThe Nuclear Company does not accept unsolicited resumes from recruiters or staffing agencies. Please do not contact The Nuclear Company employees directly about candidate placements.","description_format":"text","description_chars":9153,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["401k plan","Continuous learning","Generous vacation"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Nuclear Energy","Information Security","Nuclear Engineering"],"lifecycle":[{"event":"open","at":"2026-09-11T03:56:32Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 3","filings_12m":3,"filings_prev_12m":1,"green_card_filings_12m":0,"median_offered_wage_usd":157500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":0}],"liveness":{"score":60,"band":"ok","label":"Likely open","p_open":1,"p_active":0.795,"p_room":0.75,"age_days":53,"expected_fill_days":63,"reasons":["conf:3","win:late"],"computed_at":"2026-10-25T05:49:26Z"},"pay":{"stated_usd_annual":143000,"is_top_pay":false},"html_url":"https://alion.io/job/thenuclearcompany-senior-systems-administrator","json_url":"https://alion.io/job/thenuclearcompany-senior-systems-administrator.json","meta":{"generated_at":"2026-10-25T18:31:26Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":26307,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":684853},"rest":"https://alion.io/mcp/rest/get_company?id=684853"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fthenuclearcompany-senior-systems-administrator"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fthenuclearcompany-senior-systems-administrator"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fthenuclearcompany-senior-systems-administrator"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/thenuclearcompany-senior-systems-administrator\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fthenuclearcompany-senior-systems-administrator"}]}