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Senior Administrator Jobs

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Senior Administrative Assistant
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Join a leading nonprofit as a Part-Time Senior Administrative Assistant in San Diego. Provide advanced administrative and board support, partnering with leadership and managing logistics for 30+ directors. Requires proven EA experience, discretion, and proficiency in MS Office/Zoom. Includes bene...
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United States , San Diego
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Robert Half
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Senior Administrator
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Join our team as a Senior Administrator in Wigston, UK. You will be the key administrative contact for customer accounts, ensuring accurate order processing and building strong client relationships. The role requires excellent organisational skills, proficiency in ERP systems, and experience in s...
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United Kingdom , Wigston
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29000.00 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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Canada , North York
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467.06 - 504.13 CAD / Hour
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Randstad
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Senior Administrative Assistant
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Join our leadership team as a Senior Administrative Assistant in San Diego. Provide advanced executive support, manage complex calendars, and ensure seamless office operations. We seek a proactive professional with proven senior-level experience and mastery of Microsoft Office. This role includes...
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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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Join a leading property management firm in San Diego as a Senior Administrative Assistant. Support senior executives, manage complex calendars, and oversee critical documentation. Requires 3+ years' experience, advanced MS Office skills, and property management knowledge. Full benefits package in...
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United States , San Diego
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Robert Half
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Senior DB2 z/OS Database Administrator
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Join our team as a Senior DB2 z/OS DBA in Marysville. You will optimize critical 24x7 enterprise databases, providing expert performance tuning and SQL optimization. This role partners with application teams, requiring deep DB2 architecture knowledge and tools like Omegamon. We offer comprehensiv...
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United States , Marysville
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Robert Half
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Bilingual Senior Administrative Assistant
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Seeking a Bilingual Senior Administrative Assistant in Bethesda. Utilize your fluency in English and Spanish to support executives, manage communications, and handle confidential documents. This role requires 3+ years of senior admin experience and offers a full benefits package including medical...
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United States , Bethesda
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Robert Half
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Senior AWS Database Administrator
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Seeking a Senior AWS Database Administrator in Salt Lake City to ensure the reliability and performance of our global, multi-region database infrastructure. You will manage critical systems like RDS/PostgreSQL, DynamoDB, and Couchbase, focusing on optimization, security, and disaster recovery. Th...
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United States , Salt Lake City
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Robert Half
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Senior Administrative Assistant
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Join Baptist Health's Information Services Team as a Senior Administrative Assistant in a hybrid role at our Jacksonville campus. Provide crucial support to senior management, managing complex calendars, communications, and confidential records. This role requires 1-2 years of office experience, ...
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United States , Jacksonville
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Baptist Health (Florida)
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Senior Jira Administrator
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Seeking a Senior GRC Systems Administrator in Hyderabad to configure and optimize our RSA Archer platform. You will build data models, design workflows, and support risk, compliance, and third-party risk processes. This role requires technical expertise in GRC platforms and a strong understanding...
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India , Hyderabad
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4166.00 - 6300.00 EUR / Month
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Alter Domus
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Senior Compute Cluster Administrator
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Seeking a Senior Compute Cluster Administrator to support AMD Instinct datacenter buildouts in Austin, Santa Clara, or Seattle. You will manage Day Two operations for HPC/AI R&D and production labs, ensuring high availability. The role requires advanced Linux expertise, HPC cluster administration...
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United States , Austin; Santa Clara; Seattle
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109760.00 - 164640.00 USD / Year
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AMD
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Senior Trust Administrator
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Join a respected Boston wealth management firm as a Senior Trust Administrator. This client-facing role requires extensive expertise in trust administration, estate settlement, and fiduciary services. You will manage complex accounts while ensuring compliance and providing personalized solutions....
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United States , Boston
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Not provided
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Robert Half
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Senior Network Administrator
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Join a global agribusiness leader in Budapest as a Senior Network Administrator. You will administer and secure the network using Fortinet firewalls, FortiManager, and FortiAnalyzer. The role requires 3-5 years' experience with Fortinet, plus HP Aruba/Cisco knowledge. Enjoy an international setti...
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Hungary , Budapest
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Not provided
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Randstad
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Senior Administrative Assistant
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Seeking a Senior Administrative Assistant in Jacksonville to provide comprehensive support to senior management. This role requires expertise in MS Office, calendar management, and handling confidential information. Ideal candidates have 1-2 years of office experience and excel in a dynamic envir...
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United States , Jacksonville
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Not provided
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Baptist Health (Florida)
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Senior SIPP/SSAS Administrator
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Join a respected Leicester wealth management firm as a Senior SIPP/SSAS Administrator. You will manage pensions cradle-to-grave, ensuring regulatory compliance and liaising with key stakeholders. This hybrid role offers career progression within a supportive team for an experienced pensions profe...
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United Kingdom , Leicester
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24000.00 - 35000.00 GBP / Year
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IDEX Consulting Ltd
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Senior Windows System Administrator
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Seeking a Senior Windows System Administrator in Los Altos for a hands-on role managing a complex hybrid environment. You will own VDI (VMware Horizon), advanced Active Directory/Group Policy, and PowerShell automation. This position requires translating instructional needs into technical solutio...
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United States , Los Altos
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Not provided
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Robert Half
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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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United States , Annapolis Junction
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Not provided
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2HB
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Senior Administrative Assistant
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Seeking a detail-oriented Senior Administrative Assistant for a contract role in the Greater Philadelphia Region. You will ensure smooth office operations, manage reception, calendars, and supplies. This pivotal role offers comprehensive benefits for a proactive professional skilled in administra...
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United States , Greater Philadelphia Region
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Not provided
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Robert Half
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Senior Sales Administrative Assistant
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Join Marriott Hotels in Orlando as a Senior Sales Administrative Assistant. You will manage databases, prepare documents, and handle office systems to support our sales operations. This role offers training, development, and recognition in a luxury environment focused on well-being. Utilize your ...
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United States , Orlando
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Not provided
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Marriott Bonvoy
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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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United States , Annapolis Junction
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Not provided
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Columbia Technology Partners
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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.

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