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Senior Administrator United States Jobs

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Senior Systems Administrator
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Lead automation and modernization efforts as a Senior Systems Administrator in Annapolis Junction. This mission-critical role requires 10+ years of Linux/Ansible expertise and an active TS/SCI with Polygraph. You'll optimize secure IT systems, drive PKI/OCSP initiatives, and enjoy top-tier benefi...
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United States , Annapolis Junction
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150000.00 - 250000.00 USD / Year
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LufCo
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Senior Project Administrative Manager
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Join T5 Data Centers as a Senior Project Administrative Manager in Atlanta. Support large-scale data center construction by managing documentation, contracts, and financials. Requires 5+ years in construction admin and proficiency with tools like Procore. Be the critical operational partner for o...
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United States , Atlanta
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T5 Data Centers
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Senior Database Administrator
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Lead database architecture and optimization for mission-critical systems at Axon in Scottsdale. This senior role requires 5+ years with SQL Server/PostgreSQL, performance tuning, and IaC tools. You'll drive proactive strategy, standardization, and scaling alongside data and engineering teams. Enj...
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United States , Scottsdale
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Axon
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Senior Database Administrator
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Lead database architecture and optimization for mission-critical systems at Axon in Boston. This senior role requires 5+ years with SQL Server/PostgreSQL, performance tuning, and IaC tools. You'll drive proactive strategy, standardization, and scalability while enjoying strong benefits like 401k ...
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United States , Boston
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78825.00 - 126120.00 USD / Year
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Axon
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Senior Systems Administrator
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Join Naughty Dog's IT team as a Senior Systems Administrator in Santa Monica. You will be the primary expert for our Windows/Linux infrastructure and core systems, supporting game development. Requires 10+ years in studio environments, expertise in Windows Server, Ubuntu, and deployment tools. Th...
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United States , Santa Monica
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149000.00 - 187200.00 USD / Year
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Naughty Dog
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Senior Systems Administrator
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Seeking a Senior Systems Administrator in Laurel, MD. This role requires 10+ years of experience managing IT infrastructure, with deep expertise in UNIX/Windows systems and troubleshooting. You will oversee critical systems, ensure integrity, and enhance performance for large-scale data computing...
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United States , Laurel
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Wrench Technology
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Senior Administrative Assistant
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Join our team in San Diego as a Senior Administrative Assistant. This long-term contract role requires expert calendar management, complex travel coordination, and handling export/import documentation. We seek a highly organized professional with exceptional communication skills. The position off...
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United States , San Diego
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Robert Half
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Senior Administrative Assistant
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Seeking a Senior Administrative Assistant for a contract-to-hire role in San Diego's Senior Living sector. You will provide executive support, manage complex calendars, and coordinate travel and events. This role requires strong organizational skills, confidentiality, and healthcare industry expe...
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United States , San Diego
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Robert Half
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Senior Systems Administrator
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Join Magnopus in Los Angeles as a Senior Systems Administrator. You will deploy and support cutting-edge hardware/software in a high-performance media/VFX environment. This role requires 5+ years of experience with Microsoft/Linux systems, virtualization, and enterprise networking. We offer gener...
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United States , Los Angeles
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50000.00 - 80000.00 USD / Year
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Magnopus
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Senior Atlassian Administrator
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Lead strategic administration and optimization of our critical Atlassian Cloud suite (Jira, Confluence). You will enhance productivity, integrations, and reporting to support cross-functional collaboration. This senior role requires deep platform expertise and offers impactful benefits, including...
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United States
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145000.00 - 175000.00 USD / Year
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Human Interest
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Senior Network and Systems Administrator
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Seeking a Senior Network and Systems Administrator for a critical role at USSOCOM HQ on MacDill AFB, FL. This position requires 7+ years of network design/support experience, active Secret clearance, and IAT certification. You will manage secure LAN systems, ensure DISA compliance, and perform ke...
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United States , MacDill AFB, FL
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Delta Solutions & Strategies
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Senior Engineer – Identity Governance & Administration
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Lead IGA engineering using Saviynt to design RBAC/ABAC models, automated workflows, and complex integrations. This remote US role requires 7+ years' experience, Saviynt expertise, and strong SQL/scripting skills. Drive scalable identity governance while enjoying excellent benefits and career growth.
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United States , Appleton
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Beacon Technologies
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Senior Administrative Specialist
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Seeking a Senior Administrative Specialist in Annapolis Junction. This role requires a Bachelor's degree, 5+ years of experience, and an active Security Clearance with Polygraph. You will provide expert technical writing, editing, and presentation support for key deliverables. We offer robust ben...
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United States , Annapolis Junction
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Columbia Technology Partners
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Senior Payroll Tax Administrator
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Join a high-growth global organization as a Senior Payroll Tax Administrator. You will own end-to-end payroll tax compliance across 48-50 U.S. states for multiple entities. This hands-on role requires deep technical expertise in ADP SmartCompliance and multi-state tax filings. The position is bas...
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United States , Pasadena
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80000.00 - 120000.00 USD / Year
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Strategic Employment Partners
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Administrative Senior Assistant
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Seeking an experienced Administrative Senior Assistant in Mounds View, US. This role requires 3-5 years of experience, MS Office/Excel proficiency, and strong interpersonal skills. You will coordinate projects, guide team members, and improve operational processes. We offer comprehensive benefits...
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United States , Mounds View
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22.00 - 25.00 USD / Hour
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Aramark
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Senior Administrative Assistant
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Join our team in Dumfries, VA, as a Senior Administrative Assistant in a contract-to-permanent role. Provide high-level support through expert calendar management, complex travel arrangements, and project coordination. This position requires strong organizational skills and proficiency in documen...
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United States , Dumfries
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Robert Half
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Senior Administrative Support Analyst
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Seeking a Senior Administrative Support Analyst in Washington, D.C. Provide key administrative and program management support for major USCG acquisition programs. Requires 5+ years' government admin experience, federal acquisition knowledge, and a business-related degree. U.S. citizenship and a b...
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United States , Washington
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90000.00 - 130000.00 USD / Year
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SD Solutions, LLC
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Systems Administrator Senior Level
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Seeking a Senior Systems Administrator with an active TS/SCI FS Poly. This Fort Meade role requires 15+ years' Linux SA experience, supporting physical/virtual server infrastructure and troubleshooting. Enjoy a robust benefits package including 401K, ample PTO, and tuition assistance in this miss...
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United States , Fort Meade
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150000.00 - 200000.00 USD / Year
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Integrity Technology Consultants
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Senior Administrative Assistant
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Seeking a Senior Administrative Assistant to support executive leadership at a Honolulu financial services firm. This role requires expert proficiency in Microsoft Office, exceptional organizational skills, and experience handling confidential information. The position offers a comprehensive bene...
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United States , Honolulu
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Robert Half
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Senior Network Administrator
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Join our team as a Senior Network Administrator in Jacksonville. Manage enterprise network infrastructure, ensuring high availability and performance across multiple sites. We require 4+ years of experience with Cisco/Juniper devices, routing, switching, and firewalls. We offer comprehensive bene...
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United States , Jacksonville
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Not provided
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Robert Half
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Senior Administrator jobs represent a critical tier of professional management and technical oversight within an organization. These roles are designed for experienced individuals who move beyond foundational tasks to assume responsibility for complex systems, strategic processes, and often, the mentorship of junior staff. A Senior Administrator acts as a cornerstone of operational stability, ensuring that the specific domain they oversee—whether technological, financial, or operational—functions securely, efficiently, and in alignment with broader business objectives. The core of the profession involves a blend of deep technical or procedural expertise and advanced organizational leadership. Common responsibilities across various specializations include designing, implementing, and maintaining critical systems or processes; performing high-level troubleshooting and problem-solving for complex issues; and ensuring compliance with industry regulations and security protocols. Senior Administrators are typically tasked with ongoing optimization, conducting regular reviews and updates to enhance performance and reliability. They also play a key role in planning for future needs, managing upgrades, and contributing to strategic projects. Documentation, policy creation, and knowledge sharing are fundamental aspects of the role, as is providing training and guidance to other team members. The skill set required for Senior Administrator jobs is both broad and deep. Employers universally seek candidates with several years of proven experience in their specific field, demonstrating a progression from junior to expert-level understanding. Technical proficiency with relevant platforms, software, or industry-specific tools is mandatory. Equally important are strong analytical and problem-solving abilities to diagnose and resolve intricate challenges. Senior roles demand excellent communication skills for liaising with stakeholders, vendors, and team members, and often require the ability to translate technical details into business impacts. Leadership qualities, such as project management, team mentorship, and a proactive approach to process improvement, are common differentiators. A keen attention to detail, a commitment to maintaining confidentiality and security, and the ability to work under pressure to meet deadlines are standard expectations across all senior administration jobs. Ultimately, professionals in these positions are the trusted experts who ensure vital organizational infrastructure—be it IT networks, employee benefits schemes, or enterprise software environments—remains robust and responsive. They bridge the gap between high-level strategy and daily execution, making them indispensable assets in any sector. For those seeking a career marked by responsibility, expertise, and impact, exploring Senior Administrator jobs offers a pathway to a pivotal and respected professional role.

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