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Senior Administrator United States Jobs

102 Job Offers

Senior Systems Administrator
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Seeking a Senior Systems Administrator to own and scale post-purchase support systems like Zendesk. You'll need 8+ years of experience, expertise in APIs, SQL, and scripting, and the ability to translate business needs into technical solutions. This role offers competitive benefits and is open to...
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United States , Los Angeles, San Francisco, Phoenix, New York
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150000.00 - 210000.00 USD / Year
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Whatnot
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Senior Systems Administrator
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Seeking a Senior Systems Administrator in Irvine to lead complex data center projects. This hands-on role requires deep expertise in VMware, Windows/Linux servers, storage, and scripting (PowerShell/Bash). You will collaborate with client teams and drive infrastructure initiatives from conception...
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United States , Irvine
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145000.00 - 165000.00 USD / Year
Megazone Cloud US
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Senior Systems Administrator
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Join Realta Fusion as a Senior Systems Administrator in Madison. Own and scale our IT infrastructure, managing Microsoft 365, endpoints, and cloud networks. We offer competitive pay, equity, comprehensive benefits, and a dynamic startup environment.
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United States , Madison
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Not provided
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Realta Fusion Inc.
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Senior SQL Database Administrator – Great Plains General Ledger Administration
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United States , Atlanta
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Not provided
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Abotts
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Senior Linux System/Network Administrator
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Seeking a Senior Linux System/Network Administrator with an active TS/SCI w/ Polygraph in Annapolis Junction. You will design and maintain a critical enclave, ensuring secure infrastructure, vulnerability management, and network administration. This role offers competitive compensation, comprehen...
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United States , Annapolis Junction
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220000.00 - 260000.00 USD / Year
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Synergy ECP
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Senior Linux System Administrator
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Join Synergy ECP as a Senior Linux System Administrator in Annapolis Junction. This role requires 15 years of SA experience, expertise in Linux, Ansible, Kubernetes, and HCI solutions. A TS/SCI with Polygraph clearance is mandatory. We offer competitive pay, comprehensive benefits, flexible work,...
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United States , Annapolis Junction
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190000.00 - 220000.00 USD / Year
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Synergy ECP
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Grants Administrator Analyst Senior
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United States , Winston Salem
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35.50 - 53.25 USD / Hour
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Advocate Health Care
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Senior Systems Administrator
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United States , Wilmington
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Not provided
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Robert Half
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Senior Application Administrator, Public Safety Applications
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United States
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Not provided
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Brown University
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Senior IT Systems Administrator
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United States , Juno Beach
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Not provided
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Robert Half
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Senior Database Administrator
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Seeking a Senior Database Administrator with an active TS clearance for a role at Fort Belvoir. You will manage MS SQL Server infrastructure, including clustering and replication, ensuring performance and security. This position requires MCSA: SQL Server and Security+ certifications, offering com...
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United States , Fort Belvoir
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Not provided
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Chickasaw Nation Industries, Inc (CNI)
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Senior Remedy Database Administrator
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Seeking a Senior Remedy Database Administrator with an active Top Secret clearance for a role at Fort Belvoir. You will provide expert administration, ensuring performance, integrity, and security across all environments. This position requires MCSA: SQL Server and Security+ certifications, and o...
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United States , Fort Belvoir
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Not provided
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Chickasaw Nation Industries, Inc (CNI)
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Senior Database Administrator
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Seeking a Senior Database Administrator in Dallas to manage enterprise databases and lead SharePoint Training Library development. Requires expertise in SharePoint, Power Automate, and data governance, plus strong analytical skills. Enjoy benefits like medical, dental, and 401(k) while ensuring s...
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United States , Dallas
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50.00 - 60.00 USD / Hour
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Solomon Page
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Senior Adobe Cloud Platform Administrator
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Seeking a Senior Adobe Cloud Platform Administrator for a 6-month contract-to-hire role. This 100% remote position requires 5+ years of enterprise experience managing the Adobe Admin Console, SSO/SAML, and SCIM integrations. You will lead initiatives to mature provisioning, access models, and gov...
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United States , St Louis
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Not provided
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Zeektek
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Senior Administrator
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Join our established hospitality team in San Diego, CA, as a Senior Administrator. Utilize your 5+ years of administrative experience to oversee daily operations, support guest services, and manage vendor relationships. This role requires strong organizational skills, proficiency in Microsoft Off...
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United States , San Diego, La Jolla
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Robert Half
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Senior Stock Plan Administrator
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Seeking a Senior Stock Plan Administrator to manage global equity programs end-to-end. This critical San Francisco/New York/Portland-based role requires 5+ years' experience, deep ASC 718/409A knowledge, and platform expertise (e.g., Carta). You'll ensure compliance, lead system migrations, and p...
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United States , San Francisco; New York; Portland
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138800.00 - 192800.00 USD / Year
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Mercury
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Senior Systems Administrator
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Join Geonetric as a Senior Systems Administrator in Cedar Rapids. You will manage and improve critical IT systems including Office 365, SaaS apps, and hybrid AAD/Entra ID environments. This role requires 5+ years of experience, proficiency in desktop support, and expertise in Active Directory and...
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United States , Cedar Rapids
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Geonetric
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Senior Quality Training Administrator
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Seeking a Senior Quality Training Administrator in Pleasant Prairie, USA. You will design and lead quality training programs, ensuring compliance with standards like ISO and IPC-A-610. Requires 4+ years' experience, expertise in quality systems, and strong facilitation skills. Must be a US Citize...
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United States , Pleasant Prairie
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Not provided
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Sanmina
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System Administrator, Senior
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Seeking a Senior System Administrator in Columbia, MD, to design and maintain critical Cross Domain Solutions. Requires TS/SCI clearance, 5+ years' experience with Linux (RHEL/CentOS), VMware, and networking. This role offers competitive benefits and the chance to support vital national cybersecu...
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United States , Columbia
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77600.00 - 176000.00 USD / Year
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Booz Allen Hamilton
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Senior Systems Administrator
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Seeking a Senior Systems Administrator in Annapolis Junction to manage and maintain critical IT infrastructure. This role involves troubleshooting, system monitoring, and resolving issues across client/server/storage/network devices. Requires 15 years of SA experience and expertise in both UNIX a...
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United States , Annapolis Junction
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Not provided
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2HB
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About the Senior Administrator role

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.