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Senior Administrator Jobs (On-site work)

74 Job Offers

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Senior Systems Administrator
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105000.00 - 115000.00 USD / Year
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Marie Curie Senior Administrator
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Marie Curie seeks two proactive Senior Administrators for its Glasgow Hospice. Support senior leaders and clinicians in a fast-paced environment. Requires strong IT, organisational and communication skills.
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Senior Database Administrator
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Rewardsco seeks a Senior Database Administrator with 5+ years' experience in SQL Server and PostgreSQL to manage high-availability database systems in a fast-paced BPO environment. Strong performance tuning, ETL and scripting skills required.
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Senior Trade Compliance Administrator
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Senior Trade Compliance Administrator in Westminster to lead ITAR/EAR export licensing, TAAs, and classification reviews. Requires 5-8 years of trade compliance experience and strong USML, ECCN, and OFAC knowledge.
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94000.00 - 112000.00 USD / Year
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Senior Database Administrator
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9th Way Insignia seeks a Senior Database Administrator in Washington, US, to manage Oracle EDW systems, OBIEE and Informatica servers. Requires 2+ years experience, security clearance eligibility, and offers full benefits.
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Database Administrator Senior - Postgres - MySQL
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Senior DBA role in Bengaluru focused on Aurora PostgreSQL and MySQL on AWS RDS. Requires 5+ years of database administration, deep PostgreSQL internals expertise, and strong performance tuning skills for high-volume OLTP SaaS platforms.
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Senior Archer GRC Administrator
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Tharros seeks a Senior Archer GRC Administrator in Washington, DC to manage the RSA Archer platform for DHS cybersecurity. Requires 7+ years of RSA Archer administration, NIST SP 800-53 and RMF knowledge, and an active Top Secret clearance.
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IT Administrator - (Senior) IT Administrator
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Apex.AI seeks a hands-on IT Administrator in Munich to manage Linux/macOS endpoints, IAM, MDM, cloud services, and networks. Several years of sysadmin experience required. Join a safety-certified software leader.
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Senior Client Support Administrator **internal applications only** *12 Month FTC*
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Join Culina's Chilled & Fresh division as a Senior Client Support Administrator in Market Drayton. Manage sales orders in SAP, ensure accuracy, and support smooth supply chain operations. 12-month FTC, internal applicants only.
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Senior Systems Administrator (R5064)
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Shield AI seeks a Senior Systems Administrator in London to manage Windows/Linux environments, Active Directory, and IT asset lifecycle. Requires 3+ years experience, endpoint security knowledge, and on-call availability.
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Senior Administrator & Coordinator
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Join Cielo as a Senior Administrator & Coordinator in Cambridge, MA. Support recruitment, schedule interviews, and manage candidate screening across two onsite locations. Ideal for organized talent acquisition professionals.
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Senior Administrator - Government Relations
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Senior Systems Administrator (6006)
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Senior Accounts Payable Administrator
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Senior Talent Administrator & Coordinator
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Senior Database Administrator
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Senior Database Administrator
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ACAS Administrator - Senior Level
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United States, Quantico
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Senior Systems Administrator
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Senior Budget Administrator (one-year position)
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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.