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Senior Administrator Jobs (On-site work)

147 Job Offers

Senior Office Administrator
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Seeking a dynamic Senior Office Administrator for a temporary role in Newcastle. You will manage reception, office supplies, health & safety, and support cross-departmental coordination. The role requires strong organisation, Microsoft Office skills, and initiative. Benefits include high street d...
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United Kingdom , Newcastle Upon Tyne
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Salary
13.70 GBP / Hour
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Office Angels
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Until further notice
Senior Administrator (Projects)
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Join our team in Glenrothes as a Senior Project Administrator. You will coordinate global logistics, workforce planning, and personnel deployment for key projects. We seek an organised, proactive professional with strong experience in operations and planning systems. Enjoy a central, impactful ro...
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Location
United Kingdom , Glenrothes
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Salary
28000.00 - 32000.00 GBP / Year
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Office Angels
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Senior Database Administrator
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Seeking a Senior Database Administrator for a 12-month onsite contract in North York. This role requires an expert with 10+ years in administration and development across Oracle, Azure SQL, Synapse, and Mainframe (IMS & DB2) using PL/SQL/PL/I. You will implement changes, optimize performance, and...
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Location
Canada , North York
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Salary
467.06 - 504.13 CAD / Hour
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Randstad
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Senior System Administrator
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Join 2HB Incorporated as a Senior System Administrator in Annapolis Junction, MD. This role requires expertise in Windows/Linux Server, VMware/ESXi, and NetApp storage, with an Active DoD IAT Level II cert. You will ensure system security, perform troubleshooting, and manage network resources. Id...
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Location
United States , Annapolis Junction
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Not provided
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2HB
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Senior System Administrator / System Engineer - Linux
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Seeking a Senior Linux System Administrator/Engineer for a mission-critical Intelligence Community role in Annapolis Junction. Requires 10+ years' expertise with RHEL/CentOS, VMware, JBoss/WildFly, Ansible, and scripting. Active Security Clearance with Polygraph and Security+ certification are ma...
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Location
United States , Annapolis Junction
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Salary
Not provided
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Columbia Technology Partners
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Senior System Administrator / System Engineer - Linux
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Seeking a Senior Linux System Administrator/Engineer for a mission-critical Intelligence Community role in Annapolis Junction. This position requires 10+ years of Linux expertise (CentOS/RHEL), VMware, Ansible, and an active Security Clearance. Enjoy top-tier benefits including a 6% 401k match, c...
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United States , Annapolis Junction
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Not provided
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Columbia Technology Partners
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System Administrator Senior
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Seeking a Senior System Administrator to support HPC and data analytics for a critical research lab. This role requires extensive Linux/Windows expertise, TS/SCI clearance with polygraph, and 8+ years of lead experience. You will design, maintain, and optimize cutting-edge systems in a mission-fo...
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United States , Catonsville
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Salary
77600.00 - 176000.00 USD / Year
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Booz Allen Hamilton
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Senior Executive Administrator
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Seeking a part-time Senior Executive Administrator for a temporary, onsite role in Waltham, MA. Provide high-level support to finance and investment leadership, managing calendars, correspondence, and projects. Requires 5-8+ years of executive admin experience, discretion with confidential data, ...
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Location
United States , Waltham
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Salary
35.00 USD / Hour
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Beacon Hill
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Senior Contract Administrator
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Seeking a Senior Contract Administrator in Boulder, CO. This role requires a TS/SCI clearance, a BS/BA degree, and 4+ years of experience with FAR/DFAR and various contract types. You will manage RFPs, negotiations, and compliance, supporting key programs. We offer comprehensive benefits includin...
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United States , Boulder
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Salary
82779.00 - 140723.00 USD / Year
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Baesystems
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Supply Chain Management Subcontracts Administrator, Senior
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Seeking a Senior Subcontracts Administrator in Norfolk, VA, to manage defense supplier relationships and ensure FAR/DFAR compliance. You will lead RFQ/RFP processes, negotiate contracts, and oversee subcontractor performance. This role requires a Bachelor's degree, 2+ years of government contract...
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United States , Norfolk, Virginia
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75254.00 - 127930.00 USD / Year
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Baesystems
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Senior Administrator Logistics
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Seeking a Senior Logistics Administrator in Phoenix to oversee inventory accuracy and material flow. You will manage cycle counts, ERP transactions, and enforce best practices in a manufacturing setting. Requires 4+ years of inventory control experience, ERP/MRP knowledge, and strong leadership s...
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Location
United States , Phoenix
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Not provided
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Exyte Central Europe GmbH
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Senior Backup Administrator
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Seeking a Senior Backup Administrator in Petaling Jaya, Malaysia. This role demands a subject matter expert in IT infrastructure, ensuring platform availability and resolving complex incidents. Ideal candidates possess a relevant degree, ITIL/COBIT certifications, and experience in large-scale op...
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Malaysia , Petaling Jaya
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Not provided
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NTT DATA
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Senior Payroll & HR Administrator
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Seeking a Senior Payroll & HR Administrator in Woodbury. Manage end-to-end payroll for multiple clients, ensuring compliance and accuracy with platforms like ADP or Asure. Requires 5+ years of payroll expertise and HRIS knowledge. Enjoy comprehensive benefits including health insurance and a 401(...
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United States , Woodbury
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Salary
75000.00 - 95000.00 USD / Year
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Reid Accountants + Advisors
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Senior Payroll Administrator
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Seeking a meticulous Senior Payroll Administrator for a full-time, in-office role in Centennial. Process complex multi-state and international payrolls, ensuring compliance and accuracy with ADP WorkforceNow. This permanent position requires 4-9+ years of experience and offers $65-75k plus bonus ...
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United States , Centennial
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65000.00 - 75000.00 USD / Year
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Robert Half
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Senior Enterprise Applications Engineer - Atlassian Administrator
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Join Adyen in Amsterdam as a Senior Enterprise Applications Engineer, specializing in Atlassian administration. You will design, scale, and optimize our global SaaS ecosystem, with a strong focus on Jira and Confluence. Leverage your Python automation skills to build secure, efficient solutions t...
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Netherlands , Amsterdam
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Not provided
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Adyen
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Senior Administrator
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United Kingdom , Cheadle
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Salary
30000.00 - 32000.00 GBP / Year
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Platinum Recruitment Group Ltd
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Senior Administrator
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United Kingdom , Grimsby
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Not provided
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Wilkin Chapman Solicitor
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Senior Administrator
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Join our Private Wealth team in Jersey as a Senior Administrator. You will independently manage a diverse client portfolio, handling company administration, transactions, and statutory filings. Ideal candidates have 4-6 years' finance experience, strong communication skills, and knowledge of View...
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Jersey
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Not provided
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Ogier
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Senior Finance & Data Administrator
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Ireland , Dublin
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Not provided
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JLL
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Senior Grant Administrator
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United States , Waltham
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Salary
79700.00 - 88800.00 USD / Year
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Brandeis University
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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.