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Senior Administrator United States Jobs

103 Job Offers

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Senior Systems Administrator
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United States , Phoenix
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Robert Half
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Senior Systems Administrator - Hybrid
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Senior Systems Administrator needed for a hybrid role in Aurora, CO, supporting critical national security programs. Leverage 10+ years of IT systems experience, including Tier 1/2 support and system optimization, with an active TS/SCI Full Scope Polygraph. Join a collaborative, zero-bureaucracy ...
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United States , Aurora
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155000.00 - 175000.00 USD / Year
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Riverstone Enterprise Solutions
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Senior Global Equity Administrator
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Join Uber’s Equity team as a Senior Global Equity Administrator in San Francisco. Leverage 3+ years of global equity or mobility taxation experience to audit cross-border RSU transactions, manage compliance, and drive tax education. Thrive in a fast-paced environment with a focus on regulatory ch...
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United States , San Francisco
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119000.00 - 132000.00 USD / Year
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Uber
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Senior Salesforce Administrator
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Senior Salesforce Administrator needed in Chicago to lead platform optimization for a high-growth healthtech startup. Drive scalable solutions, complex configurations, and data integrity using Salesforce Flow Builder. Requires 5+ years’ experience, Advanced Admin certification, and strong cross-f...
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United States , Chicago
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55.00 - 65.00 USD / Hour
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Carex Consulting Group
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Senior Systems Administrator
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Senior Systems Administrator needed in Montgomery, AL to support AFLCMC/GBQ’s Agile Support Office. You will provide expert-level administration for Network, Web, and communication systems, optimizing technical baselines across BES programs. Requires a Master’s with 10 years (5 in DoD) or equival...
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United States , Montgomery
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Astrion
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Senior Network Administrator
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Senior Network Administrator needed for a long-term contract in Portland, Oregon. This role demands deep expertise in Cisco routing, Fortinet firewall administration, and SD-WAN management within complex enterprise environments. You will ensure network stability, security, and performance while s...
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United States , Portland
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Robert Half
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Senior Talent Acquisition Administrator
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Join Project Farma's mission to accelerate life-changing therapies. We seek a Senior Talent Acquisition Administrator in Raleigh to coordinate hiring in a fast-paced environment. You'll manage scheduling, stakeholder communication, and ATS workflows with 3-6+ years of experience. Eastern/Central ...
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United States , Trenton
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PerkinElmer
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Senior Systems Administrator
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Senior Systems Administrator needed onsite in Aurora, CO, to support critical Intelligence Community missions. This role requires 10+ years of experience, a TS/SCI with Full Scope Polygraph, and expertise in UNIX/Windows systems. You will provide Tier 1-2 support, optimize system performance, and...
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United States , Aurora
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155000.00 - 175000.00 USD / Year
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Riverstone Enterprise Solutions
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Senior Application Administrator - Workday Integrations
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Senior Application Administrator - Workday Integrations role in Miramar, FL. Design, develop, and debug complex integrations (EIB, Studio, CCW) for HCM, Finance, and Payroll. Requires 5+ years of experience and expertise in end-to-end application management. Join a collaborative team driving secu...
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United States , Miramar
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Memorial Healthcare System
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Senior Application Administrator - Inpatient Pharmacist
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Senior Application Administrator and Inpatient Pharmacist needed in Miramar, FL. Manage and configure the pharmacy application for Memorial Healthcare System, handling end-to-end design, testing, and installation. Requires a Florida Pharmacist License, 5+ years of experience, and strong critical ...
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United States , Miramar
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Memorial Healthcare System
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Senior Systems Administrator
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United States , Aurora
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Riverstone Enterprise Solutions
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Senior Database Administrator
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United States
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Tier4 Group
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Senior Sales Operations Administrator
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United States , Indianapolis
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Parking Network B.V.
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Senior IT Systems Administrator
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United States , Philadelphia
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Cabaletta Bio Inc
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Senior Systems Administrator
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Senior Systems Administrator needed in San Francisco for a globally recognized company. Leverage 5+ years of Windows/Unix expertise with VMWare, GitLab, Jenkins, and Active Directory. This role offers career progression, project management challenges, and the chance to work with cutting-edge tech...
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United States , San Francisco
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Whitehall Resources Ltd
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Senior IT Systems Administrator
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Senior IT Systems Administrator needed for a contract-to-permanent role in New York’s museum and art gallery sector. Leverage 5+ years of experience managing Slack, Google Workspace, Azure Sentinel, and Ubiquiti networks. Drive endpoint security, vendor management, and IT inventory while supporti...
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United States , New York
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Robert Half
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Senior Systems Administrator
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Senior Systems Administrator needed for a long-term contract in Fort Mill, SC. Leverage 5+ years of expertise in Active Directory, Microsoft 365, Azure, and Hyper-V/VMware to support 400 users across 22 locations. This onsite role offers hands-on work with Windows Server, SharePoint migrations, a...
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United States , Fort Mill
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Robert Half
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Senior Systems Administrator
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Senior Systems Administrator needed in Jacksonville, FL to manage hybrid cloud and on-premises environments. Leverage 5–8+ years of expertise in Azure, O365, and Windows Server to ensure high availability and security. Responsibilities include administering cloud infrastructure, supporting enterp...
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United States , Jacksonville
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Robert Half
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Senior Administrator, Payroll
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Senior Payroll Administrator needed in Duluth, US. Audit multi-jurisdictional payroll data, correct pay errors, and provide expert customer service. Requires 3-5 years’ experience, strong Microsoft Office skills, and knowledge of HCM systems. Enjoy an employee assistance program and discount whil...
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United States , Duluth
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19.00 - 23.75 USD / Hour
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Chico's FAS, Inc.
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Senior Administrator, Payroll
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Senior Payroll Administrator needed in Fort Myers to lead multi-jurisdictional payroll processing with 3–5 years’ experience. You will audit timekeeping data, resolve pay discrepancies, and deliver exceptional customer service. Requires strong organizational skills, HCM expertise, and IRS tax kno...
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United States , Fort Myers
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19.00 - 23.75 USD / Hour
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Chico's FAS, Inc.
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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.