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Senior Administrator Jobs (On-site work)

136 Job Offers

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Senior Administrative Associate
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Join a leading Boston medical institution in this temporary Senior Administrative Associate role. Support a specialized clinical department with financial reconciliation, data management, and confidential recordkeeping. This onsite position requires 3+ years of admin experience, ideally in health...
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United States , Boston
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24.00 - 28.00 USD / Hour
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Beacon Hill
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Senior Administrative Associate
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Join a leading Boston medical institution as a temporary Senior Administrative Associate. This 3-6 month, onsite role supports a specialized clinical department, requiring 3+ years of admin experience. You will manage financial reconciliation, sensitive records, and program coordination in a fast...
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United States , Boston
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24.00 - 28.00 USD / Hour
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Beacon Hill
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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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Not provided
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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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Senior Group Risk Administrator
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Seeking a Senior Group Risk Administrator for a leading London financial planning firm. This role requires 3-5 years' group risk experience and strong knowledge of products like Group Life and Income Protection. You will manage schemes, ensure FCA compliance, and provide excellent client service....
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United Kingdom , London
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40000.00 - 43000.00 GBP / Year
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Office Angels
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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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Senior Administrative Specialist
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Seeking a Senior Administrative Specialist in San Antonio, TX, supporting critical cyber systems. This role requires an active Top Secret clearance and 5+ years of DoD administrative experience. You will provide direct staff support to senior leadership, ensuring mission success. We offer competi...
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United States , San Antonio, Texas
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Not provided
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Astrion
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Senior Database Administrator
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Seeking a Senior Database Administrator with Top Secret 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 and Security+ certifications and offers robust benefits ...
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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 TS clearance for a role at Fort Belvoir. You will administer and secure Remedy/SQL databases across multiple environments, ensuring performance and integrity. This position requires MCSA: SQL Server and Security+ certifications. We off...
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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 Administrative Assistant (Administrative Support Assistant III) - Technology
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Join Capital One as a Senior Administrative Assistant supporting 4-6 tech executives in McLean, San Francisco, or San Jose. You'll manage complex calendars, coordinate travel/events, and ensure seamless operations in a fast-paced environment. This role requires 2+ years of admin experience, MS Of...
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United States , McLean; San Francisco; San Jose
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80900.00 - 100700.00 USD / Year
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Capital One
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Senior Administrative Assistant
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Seeking a proactive Senior Administrative Assistant to support executives in Del Mar, CA. This high-visibility role requires 4+ years of C-suite support, expert MS Office skills, and exceptional organization. Manage complex calendars, travel, and communications in a fast-paced environment. We off...
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United States , Del Mar
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Not provided
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Robert Half
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Senior Administrative Assistant
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Seeking a skilled Senior Administrative Assistant to provide high-level office support in San Antonio. This role requires 3+ years of secretarial experience, with a preference for a hospital setting and relevant certification or degree. You will deliver essential administrative services in a dyna...
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United States , San Antonio
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19.05 - 26.75 USD / Hour
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University Health
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Senior Applications Administrator
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Seeking a Senior Applications Administrator in Woburn to manage our critical enterprise platforms. You will ensure the reliability and performance of GitLab, Jira, Confluence, and related systems. The role requires 7+ years of experience, strong skills in GitLab/Atlassian administration, and scri...
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United States , Woburn
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130000.00 - 175000.00 USD / Year
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STR
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Senior IT Systems Administrator
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Join Vodafone to safeguard the UK's Critical National Infrastructure. As a Senior IT Systems Administrator in Farnborough, you'll design and maintain critical Windows, Linux, and VMware platforms. Leverage your scripting and NMS expertise within a collaborative team. Enjoy a competitive salary, b...
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United Kingdom , Farnborough
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Not provided
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Vodafone
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Senior Administrative Assistant
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Join our team in Posen, IL, as a Senior Administrative Assistant in a contract-to-permanent role. You will provide pivotal operational support to the School Director, managing schedules, records, and school communications. This position requires strong organizational skills, proficiency in MS Off...
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United States , Posen
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20.00 - 23.00 USD / Hour
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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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