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Senior Administrator Jobs

334 Job Offers

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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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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United States , Annapolis Junction
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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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Columbia Technology Partners
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Senior Systems Administrator
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Seeking a Senior Systems Administrator in Surprise, USA. Lead critical IT infrastructure, including VMware, SAN storage, and Microsoft Exchange. Requires 5+ years' experience with Linux, Active Directory, and PowerShell automation. Competitive benefits include medical, dental, vision, and a 401(k...
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United States , Surprise
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Not provided
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Robert Half
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Senior IT Security Administrator
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Join Palladyne AI as a Senior IT Security Administrator. This role requires an active U.S. Security Clearance and 7+ years in IT security, focusing on NIST/CMMC frameworks and incident response. You will administer critical security systems and ensure compliance in a fast-paced, innovative enviro...
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Palladyne AI
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Principal Engineer I – Senior Azure Databricks Administrator
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Lead the Azure Databricks platform for a major corporation in Phoenix, AZ. This senior role requires 8+ years in data analytics and deep expertise in Azure Databricks, Unity Catalog, and PySpark. Enjoy a competitive package with ownership stake, great benefits, and a hybrid schedule (4 days on-si...
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United States , Phoenix
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Not provided
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Software Resources
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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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77600.00 - 176000.00 USD / Year
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Booz Allen Hamilton
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Senior Asset Services Administrator
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Join Capital International as a Senior Asset Services Administrator in Douglas, Isle of Man. You will deliver outstanding client service, processing dividends, corporate actions, and asset transfers. The role requires strong organizational skills, attention to detail, and proficiency in Microsoft...
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Isle of Man , Douglas
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Not provided
Capital International
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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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United States , Waltham
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35.00 USD / Hour
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Beacon Hill
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Subcontract Administrator Senior
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Seeking a Senior Subcontract Administrator in Westminster to manage complex supplier relationships and strategic sourcing. You will prepare bid packages, evaluate proposals, and oversee subcontracts (Fixed Price, Cost Reimbursable). Requires a Bachelor's degree, 4+ years of experience, and FAR/DF...
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United States , Westminster
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82779.00 - 140723.00 USD / Year
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Baesystems
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Senior Database Administrator
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Seeking a Senior Database Administrator in Melbourne to manage high-availability Oracle & SQL Server environments. You will need 10+ years of enterprise experience with RAC, Data Guard, AlwaysOn, performance tuning, and cloud platforms. This role involves ensuring database security, leading migra...
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Australia , Melbourne
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Salt
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Payroll Senior Administrator
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Seeking an experienced Payroll Senior Administrator for a hybrid role in Northwich. Process end-to-end payrolls using Sage 50/BrightPay, ensuring compliance with legislation. Enjoy a supportive team, generous benefits, and flexible full/part-time hours in this progressive firm.
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United Kingdom , Northwich
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30000.00 - 33000.00 GBP / Year
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Butler Rose
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Senior Systems and Network Administrator
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Lead major cloud and infrastructure modernization in Providence. This senior role requires deep expertise in Windows Server, Active Directory, networking (Cisco/Meraki), and Azure migration. You will own projects end-to-end, partnering with an MSP during transition. We offer full benefits includi...
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United States , Providence
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Robert Half
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Senior Administrator
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Join a leading construction consultancy as a Senior Administrator in Oxford. Provide vital administrative support, manage documentation, and coordinate meetings in a dynamic environment. This role offers flexible working, a competitive salary, and professional development opportunities.
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United Kingdom , Witney, Oxfordshire
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28000.00 - 35000.00 GBP / Year
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Brandon James
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Senior Administrator
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Join a leading national construction consultancy in Oxford as a Senior Administrator. Provide high-quality administrative support, manage documentation, and coordinate meetings in a dynamic environment. This role offers flexible working, a competitive salary, and excellent benefits for an organis...
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United Kingdom , Oxford
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28000.00 - 35000.00 GBP / Year
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Brandon James
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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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82779.00 - 140723.00 USD / Year
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Baesystems
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Senior Jira Administrator
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Seeking a Senior Jira Administrator in Hyderabad to design and maintain enterprise Atlassian solutions. You will translate business needs into technical configurations, workflows, and automations using Jira, Confluence, and APIs. This role requires strong platform administration skills and offers...
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India , Hyderabad
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Not provided
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Alter Domus
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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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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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NTT DATA
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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.