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Senior Administrator Jobs

332 Job Offers

Senior IT Systems Administrator
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Seeking a Senior IT Systems Administrator in Bolton, Manchester. Lead infrastructure initiatives, ensuring security and smooth operations across Windows Server, VMware, and cloud platforms. Drive innovation in disaster recovery, support new site development, and act as the senior technical escala...
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United Kingdom , Bolton, Manchester
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Not provided
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Cheriva Group Ltd
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Senior Systems Administrator
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Join Naughty Dog's IT team as a Senior Systems Administrator in Santa Monica. You will be the primary expert for our Windows/Linux infrastructure and core systems, supporting game development. Requires 10+ years in studio environments, expertise in Windows Server, Ubuntu, and deployment tools. Th...
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United States , Santa Monica
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149000.00 - 187200.00 USD / Year
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Naughty Dog
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Senior Systems Administrator
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Seeking a Senior Systems Administrator in Laurel, MD. This role requires 10+ years of experience managing IT infrastructure, with deep expertise in UNIX/Windows systems and troubleshooting. You will oversee critical systems, ensure integrity, and enhance performance for large-scale data computing...
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United States , Laurel
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Not provided
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Wrench Technology
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Senior Support Administrator
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Join NTT DATA as a Senior Support Administrator in Petaling Jaya. This full-time, on-site role requires 2+ years' experience, advanced MS Office skills, and exceptional organization. Provide vital administrative support in a collaborative, global Top Employer environment that values growth and in...
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Malaysia , Petaling Jaya
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Not provided
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NTT DATA
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Senior Salesforce Administrator Consultant
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Seeking a Senior Salesforce Administrator Consultant in Bengaluru with 4-7 years of deep hands-on experience. You will drive configuration for Core CRM, CPQ, Billing, and FinancialForce, optimizing the Lead-to-Cash process. Expertise in declarative tools, Sales Navigator integration, and supporti...
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India , Bengaluru
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Not provided
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Cigres
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Senior Network and Systems Administrator
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Seeking a Senior Network and Systems Administrator for a critical role at USSOCOM HQ on MacDill AFB, FL. This position requires 7+ years of network design/support experience, active Secret clearance, and IAT certification. You will manage secure LAN systems, ensure DISA compliance, and perform ke...
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United States , MacDill AFB, FL
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Not provided
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Delta Solutions & Strategies
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IT Systems Senior Administrator
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Join our Cloud Operations team in Wrocław as a Senior M365 Administrator. You will manage the full lifecycle of Microsoft 365 services, including Entra ID and Purview, in a hybrid environment. Leverage your PowerShell skills for automation and collaborate with global security teams. Enjoy a suppo...
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Poland , Wrocław
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AmRest
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Senior Administrator
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Join a forward-thinking legal team in Exeter as a Senior Administrator. Utilize your strong organizational skills and attention to detail to provide comprehensive legal support and conduct research. Enjoy a vibrant workplace culture, private medical cover, and 25 days holiday plus bank holidays.
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United Kingdom , Exeter
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Salary
35000.00 GBP / Year
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Office Angels
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Senior Payroll Tax Administrator
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Join a high-growth global organization as a Senior Payroll Tax Administrator. You will own end-to-end payroll tax compliance across 48-50 U.S. states for multiple entities. This hands-on role requires deep technical expertise in ADP SmartCompliance and multi-state tax filings. The position is bas...
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United States , Pasadena
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80000.00 - 120000.00 USD / Year
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Strategic Employment Partners
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Senior DevOps Systems Administrator
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Seeking a Senior DevOps Systems Administrator to shape platform architecture in a hybrid cloud environment. This hands-on UK role requires 5+ years' AWS, Terraform, Kubernetes, and Linux expertise. Enjoy a hybrid model, strong development focus, and benefits like private medical cover. Drive auto...
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United Kingdom
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65000.00 GBP / Year
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Dynamic Search Solutions
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Systems Administrator Senior Level
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Seeking a Senior Systems Administrator with an active TS/SCI FS Poly. This Fort Meade role requires 15+ years' Linux SA experience, supporting physical/virtual server infrastructure and troubleshooting. Enjoy a robust benefits package including 401K, ample PTO, and tuition assistance in this miss...
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United States , Fort Meade
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150000.00 - 200000.00 USD / Year
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Integrity Technology Consultants
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Senior Network Administrator
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Join our team as a Senior Network Administrator in Jacksonville. Manage enterprise network infrastructure, ensuring high availability and performance across multiple sites. We require 4+ years of experience with Cisco/Juniper devices, routing, switching, and firewalls. We offer comprehensive bene...
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United States , Jacksonville
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Not provided
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Robert Half
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Senior HR Administrator
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Seeking a Senior HR Administrator in Vadodara to provide high-quality HR operational support across India and the UK. You will manage the end-to-end employee lifecycle, maintain precise records, and support global HR initiatives. The ideal candidate has strong HR administration experience, profic...
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India , Vadodara
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Not provided
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360 Resourcing Solutions
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Senior Capital Administrator
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Seeking a Senior Capital Administrator in New York or Chicago. You will manage capital allocations for private equity funds, serving as the client relationship lead and subject matter expert. This role requires strong GAAP knowledge, advanced Excel skills, and private equity experience. We offer ...
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United States , New York; Chicago
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85000.00 - 110000.00 USD / Year
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Alter Domus
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Senior Database Administrator
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Lead a team as a Senior Database Administrator in Hyderabad, leveraging 8+ years of expertise in Oracle, MS SQL Server, and open-source databases. Ensure performance, security, and SLA compliance while providing critical L3/L4 support. This senior role demands strong leadership, customer communic...
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India , Hyderabad
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Not provided
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NTT DATA
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Senior Stock Plan Administrator
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Seeking a Senior Stock Plan Administrator to manage global equity programs end-to-end. This critical San Francisco/New York/Portland-based role requires 5+ years' experience, deep ASC 718/409A knowledge, and platform expertise (e.g., Carta). You'll ensure compliance, lead system migrations, and p...
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United States , San Francisco; New York; Portland
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138800.00 - 192800.00 USD / Year
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Mercury
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Senior Linux System Administrator - Support Engineer
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Join our Canberra-based team as a Senior Linux System Administrator - Support Engineer. You will design, maintain, and optimize mission-critical Linux infrastructure and HPC clusters, ensuring high availability and performance. This on-site role requires 5+ years of Linux/HPC expertise, strong sc...
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Australia , Canberra
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Not provided
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Hewlett Packard Enterprise
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Senior DevOps Systems Administrator
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Seeking a Senior DevOps Systems Administrator to shape platform architecture in a hybrid cloud environment. This hands-on role requires strong AWS, Terraform, and Kubernetes expertise to drive automation and reliability. Enjoy a hybrid UK model with benefits like private medical cover and strong ...
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United Kingdom
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65000.00 GBP / Year
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Dynamic Search Solutions
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Senior Financial Services Administrator
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Join a Belfast team as a Senior Financial Services Administrator. This role requires 3+ years' IFA or wealth management experience and strong compliance knowledge. You will support advisers, manage client transactions, and ensure exceptional service delivery.
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United Kingdom , County Antrim
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Brook-St Hiredonline
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Senior Systems Administrator
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Join Geonetric as a Senior Systems Administrator in Cedar Rapids. You will manage and improve critical IT systems including Office 365, SaaS apps, and hybrid AAD/Entra ID environments. This role requires 5+ years of experience, proficiency in desktop support, and expertise in Active Directory and...
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United States , Cedar Rapids
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Not provided
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Geonetric
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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.