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Senior Administrator Jobs

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Senior System Administrator
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Senior System Administrator needed in Annapolis Junction, MD to support a government customer. Requires 15+ years of experience, expertise in Windows Server, Active Directory, Linux, and Broadcom VMware/ESXi. Key duties include system hardening, security compliance (Nessus/ACAS), and RMF. Must ho...
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United States , Annapolis Junction
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2HB
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Senior Salesforce Administrator & Consultant
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Seeking a **Senior Salesforce Administrator & Consultant** in Brasov, Romania, to optimize the Salesforce platform for a Shipping Container industry client. Requires 5+ years of experience, a mandatory Salesforce Administrator certification, and strong analytical skills. Enjoy flexible remote, hy...
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Romania , Brasov
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NTT DATA
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Project Administrator (Senior Administrator)
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Senior Project Administrator sought for a leading Australian defence systems integrator in Adelaide’s northern suburbs. This role bridges finance, procurement, and technical delivery, requiring 5+ years’ experience in senior administration, advanced Excel, and ERP proficiency. You will manage pro...
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Australia , Adelaide
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85000.00 - 95000.00 AUD / Year
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Randstad
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Offsite Senior Medical Secretary-Obstetrics And Gynecology Administration-Mount Sinai West-Full-time day
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Seeking an experienced **Offsite Senior Medical Secretary** for **Mount Sinai West's OB/GYN Administration** in **New York**. This full-time day role requires 5+ years of administrative experience in a healthcare setting, handling high-volume phones, **OR scheduling**, **authorizations**, and **E...
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United States , New York
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29.94 - 32.08 USD / Hour
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Mount Sinai Health System
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HR Operations & Administration Senior Associate
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NTT DATA seeks an HR Operations & Administration Senior Associate in Kapitolyo, Philippines. This role provides first-level HR support, manages employee inquiries, and maintains HR data using SuccessFactors or SAP. Ideal candidates have 1-3 years of experience, a graduate degree, and strong MS Of...
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Philippines , Kapitolyo
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NTT DATA
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Senior GP Education Administrator
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Senior GP Education Administrator needed in Swindon for a 12-month maternity cover, part-time role (20 hrs/week). Provide key administrative support to GP training programs, medical education, and CPD initiatives. Requires strong organizational skills, Microsoft Office proficiency, and relevant a...
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United Kingdom , Swindon
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28392.00 - 31157.00 GBP / Year
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Great Western Hospitals NHS Foundation Trust
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Senior FS Administration Analyst (EMEA)
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Senior FS Administration Analyst (EMEA) role in London, UK. Leverage your reinsurance, pensions, or insurance expertise to deliver high-quality treaty administration and ensure SOX compliance. Act as a key escalation point for complex cases, driving process improvements and data integrity. Join a...
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United Kingdom , London
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Reinsurance Group of America
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Senior Administrator
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Seeking a proactive **Senior Administrator** for a fixed-term maternity cover role at HMP Altcourse, Liverpool. This full-time position requires Level 2 Literacy/Numeracy, strong IT skills, and experience in a busy office environment. Join Novus to support a dynamic team, enjoying 35 days annual ...
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United Kingdom , Liverpool
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25877.80 - 27041.04 GBP / Year
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Novus
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Senior Network Administrator
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Senior Network Administrator sought to lead enterprise network strategy across North America from Seattle or Portland. This role demands deep expertise in Fortinet technologies, SD-WAN, and network security to design scalable, high-availability solutions. Key responsibilities include managing mul...
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United States , Seattle, Washington or Portland, Oregon
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45.00 - 50.00 USD / Hour
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Robert Half
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Senior Administrator
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We are seeking a Senior Administrator for a client in Leith, Edinburgh. This hands-on role requires expertise in managing digital records, compliance systems, and GDPR. You will ensure smooth, compliant operations by maintaining personnel files and shared drives. Enjoy weekly pay, 28 days holiday...
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United Kingdom , Edinburgh
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18.13 GBP / Hour
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Office Angels
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Senior Administrator / Office Manager
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Senior Administrator / Office Manager needed in Lutterworth for a professional, team-oriented environment. You will support the SMT with audio and copy typing, report production, and meeting coordination. Advanced Excel and Word skills, exceptional attention to detail, and a proactive approach ar...
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United Kingdom , Lutterworth
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30000.00 - 35000.00 GBP / Year
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Office Angels
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Senior Administrator - Finance Duties
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Senior Administrator – Finance Duties role in Wakefield, offering £18.10/hr for a 13-month maternity cover. Combine senior admin support with finance tasks like reconciliations, payments, and expenses. Ideal for an experienced, organised communicator; finance experience desirable but not essentia...
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United Kingdom , Wakefield
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18.10 GBP / Hour
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Office Angels
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Clinic Patient Representative Senior - Administration
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Senior Clinic Patient Representative needed in Shreveport to manage patient check-in, scheduling, and insurance verification. Requires 3+ years healthcare experience, strong communication skills, and math proficiency. Preferred qualifications include ICD9/CPT coding, charge posting, and collectio...
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United States , Shreveport
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Not provided
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CHRISTUS Health
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Senior Administrator, Payroll
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Senior Payroll Administrator needed in Hingham, US to audit multi-system pay data, ensure accurate weekly payroll processing, and resolve complex associate inquiries. Requires 3-5 years multi-jurisdictional payroll experience, advanced Microsoft Office skills, and expertise in HCM systems. Join a...
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United States , Hingham
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19.00 - 23.75 USD / Hour
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Chico's FAS, Inc.
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Senior Lease Administration Lead
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Senior Lease Administration Lead responsible for managing Microsoft’s global data center lease portfolio. This role ensures contractual compliance, financial accuracy, and risk mitigation while partnering with Finance, Legal, and Engineering teams. Requires a Bachelor’s degree and 7+ years of exp...
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United States , Redmond
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116900.00 - 203600.00 USD / Year
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Microsoft Corporation
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Senior Administrative Assistant
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Join a nonprofit in La Mesa as a Senior Administrative Assistant. Provide advanced executive support, manage complex calendars, and handle confidential documents. Ideal candidates have strong organizational skills and nonprofit experience. Benefits include medical, dental, vision, and a 401(k) plan.
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United States , La Mesa
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Robert Half
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Senior Administrative Assistant
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Seeking a detail-oriented Senior Administrative Assistant in San Diego. Provide high-level support to executives, manage complex schedules, and optimize office operations. Requires 3+ years of experience, proficiency in MS Office, and exceptional organizational skills. Benefits include comprehens...
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United States , San Diego
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Not provided
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Robert Half
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Senior Administrator
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Join our dynamic Head Office in Team Valley as a Senior Administrator for a 12-month maternity cover. Provide high-level support to senior leadership, managing schedules, communications, and sensitive data. This role offers fantastic PLC exposure, a supportive environment, and benefits including ...
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United Kingdom , Team Valley, Gateshead
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Not provided
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360 Resourcing Solutions
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Senior Digital Solution Administrator Specialist
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Seeking a Senior Digital Solution Administrator Specialist in Kuala Lumpur. Lead the administration and optimization of cloud platforms and enterprise software, ensuring peak performance and security. Requires 7+ years of experience, including AWS/Azure/GCP expertise, and relevant certifications....
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Malaysia , Kuala Lumpur
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Airswift Sweden
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Senior Windows Administrator
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GovCIO seeks a Senior Windows Administrator for a hybrid role in Kearneysville, WV. This mission-critical role supports the U.S. Coast Guard, requiring an active Secret clearance and Security+ certification. You will manage Windows Server, VMware, and RDS environments, ensuring security and high ...
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United States , Kearneysville
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105000.00 - 130000.00 USD / Year
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GovCIO
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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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