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Senior Administrator Jobs

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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 Payroll Administrator
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Seeking a Senior Payroll Administrator for a key role in Uckfield. You will manage end-to-end UK payrolls, ensure HMRC compliance, and act as a senior client contact. Ideal candidates have bureau experience, strong knowledge of UK legislation, and proficiency with payroll software. This hands-on ...
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United Kingdom , Uckfield
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Not provided
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Sumer Law
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Senior Linux Systems Administrator/ SRE
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Join our team in Copenhagen as a Senior Linux Systems Administrator/SRE. You will ensure system reliability and performance using your expertise in Linux, Ansible, and the Grafana LGTM stack. We offer a competitive salary, pension, and a flexible hybrid work model. This role is ideal for an autom...
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Denmark , Copenhagen
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Not provided
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Keepit
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Senior Database Administrator
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Seeking a Senior Database Administrator with an active SECRET clearance in Ottawa. This role involves managing enterprise Oracle and SQL Server databases across on-prem and Azure cloud environments. You will perform installation, security, performance tuning, and complex troubleshooting. Requires...
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Canada , Ottawa
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Not provided
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Myticas Consulting
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Senior Database Administrator
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Seeking a Senior Database Administrator in Pretoria to manage and optimize enterprise Microsoft SQL Server environments. You will ensure performance, availability, and security through tuning, backups, and high-availability solutions. This role requires strong hands-on experience, relevant certif...
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South Africa , Pretoria
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Not provided
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Overture Rede
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Senior Administrative Assistant
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Join Capital One as a Senior Administrative Assistant in Stamford. Support 4-6 executives in a dynamic, tech-savvy environment, managing calendars, travel, and key events. Requires 2+ years of admin experience and proficiency in Microsoft/Google suites. Enjoy comprehensive benefits in this pivota...
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United States , Stamford
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88200.00 - 100700.00 USD / Year
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Capital One
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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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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 z/OS Mainframe Systems Administrator
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Join our team as a Senior z/OS Mainframe Systems Administrator in Austin. You will support mission-critical systems, leveraging deep expertise in z/OS, TSS security, JES2, and performance monitoring (RMF/SMF). This role requires 8+ years with Top Secret Security and strong skills in TLS, networki...
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United States , Austin
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Not provided
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Dutech Systems
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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 Administrator
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Own the operational backbone of secure alarm services at AddSecure. As a Senior Administrator in Swallowfield, Reading, you will manage end-to-end service delivery, from orders and billing to connectivity support. Your 5+ years of industry experience and customer-focused mindset will drive proces...
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United Kingdom , Swallowfield, Reading
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Not provided
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AddSecure
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Senior Administrative Assistant
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Join our dynamic New York team as a Senior Administrative Assistant. Provide high-level administrative support, managing complex calendars, travel, and expenses. Ideal candidates are tech-savvy, proficient in tools like Outlook and Slack, and thrive in fast-paced environments. This contract role ...
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United States , New York
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Robert Half
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Senior Administrative Assistant
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Seeking a detail-oriented Senior Administrative Assistant for a contract-to-permanent role in Florence, KY. You will manage tenant communications, prepare contracts, and support property management using tools like Excel and Yardi. This role offers comprehensive benefits and a dynamic administrat...
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United States , Florence
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Not provided
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Robert Half
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Senior Administrator
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Join our Learning & Development team as a Senior Administrator in the Scottish Borders. Provide crucial administrative support, manage data, and generate reports using your strong IT and database skills. This proactive role requires excellent organisation, communication, and the ability to work i...
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United Kingdom , Scottish Borders
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Salary
33045.00 - 37000.00 GBP / Year
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Morson Talent
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Senior Pensions Administrator
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Join a leading UK pensions consultancy as a Senior Pensions Administrator in Edinburgh. You will oversee DB schemes, verify team tasks, and ensure regulatory compliance. This role requires strong pensions experience, MS Office skills, and offers a comprehensive benefits package.
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United Kingdom , Edinburgh
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35000.00 - 42000.00 GBP / Year
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IDEX Consulting Ltd
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Senior Administrator - Legal
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Join a dynamic Health, Advisory & Litigation team in Nottingham as a Senior Legal Administrator. This hybrid role supports 4-5 fee earners, requiring strong legal or public sector experience. You will provide high-quality administrative and client support, managing documents, diaries, and complia...
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United Kingdom , Nottingham
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28000.00 - 30000.00 GBP / Year
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Office Angels
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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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