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Senior Administrator Jobs (Hybrid work)

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Senior Email Security Administrator
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Senior Email Security Administrator sought in Vilnius, Lithuania, to lead enterprise email security programs. This role requires 7+ years of cybersecurity experience with deep expertise in Mimecast, Proofpoint Tessian, and Microsoft 365. You will design secure email gateways, combat phishing and ...
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Lithuania , Vilnius
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3000.00 - 4583.00 EUR / Month
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Alter Domus
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Senior Email Security Administrator
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Senior Email Security Administrator sought to lead email security programs in Cork or Dublin, Ireland. This role requires 7+ years of cybersecurity experience with deep expertise in Mimecast and Proofpoint Tessian. You will design, implement, and optimize secure email gateways, protect against ph...
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Ireland , Cork; Dublin
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Not provided
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Alter Domus
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Senior Database Administrator
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Senior Database Administrator needed in Mumbai for a hybrid role at NTT DATA. Manage complex SQL Server, Oracle, and MySQL systems, ensuring high availability and performance. Requires 7+ years of DBA experience, a bachelor's degree, and expertise in backup/recovery. Certifications like MCSE DBA ...
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India , Mumbai
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Not provided
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NTT DATA
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Senior GRC Systems Administrator
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Senior GRC Systems Administrator sought to configure and optimize the RSA Archer platform in Vilnius, Lithuania. You will build data models, design workflows, and support risk, compliance, and third-party risk management. Ideal candidates have strong GRC platform expertise and problem-solving ski...
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Lithuania , Vilnius
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Not provided
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Senior Systems Administrator
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Senior Systems Administrator needed in Aurora, CO, to support critical Intelligence Community missions. This role requires 10+ years of SA experience, a TS/SCI with Full Scope Polygraph, and expertise in Tier 1/2 support, system optimization, and troubleshooting. Join a collaborative, zero-bureau...
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United States , Aurora
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Not provided
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Riverstone Enterprise Solutions
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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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Not provided
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NTT DATA
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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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Not provided
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Reinsurance Group of America
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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 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 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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Senior Capital Administrator
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Seeking a Senior Capital Administrator in Chicago to deliver expert capital administration services for private equity clients. This role requires deep knowledge of GAAP, fund accounting, and client relationship management. You will analyze fund economics, execute allocations, and lead internal t...
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United States , Chicago
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85000.00 - 100000.00 USD / Year
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Alter Domus
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Senior Principal Contract Administrator
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Seeking a Senior Principal Contract Administrator in Westminster, CO. This individual contributor role requires 8+ years of DoD contracting experience, expert FAR/DFARS knowledge, and U.S. citizenship. You will manage the full contract lifecycle for tactical programs, ensuring compliance and miti...
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United States , Westminster
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118747.00 - 201870.00 USD / Year
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Baesystems
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Senior Administrator
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Join Rapport's Facilities Management team in London as a Senior Administrator. You'll coordinate retail store projects, manage asset verification, and ensure operational excellence using advanced Excel skills. This role requires exceptional organisation, proactive accountability, and strong stake...
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United Kingdom , London
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Not provided
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14forty
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Senior Database Administrator
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Seeking a Senior Database Administrator in Madison to manage critical Microsoft SQL Server environments. Ensure high availability, performance, and security for enterprise systems. Requires 7+ years of advanced SQL Server administration, troubleshooting, and disaster recovery skills. Offers compr...
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United States , Madison
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Not provided
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Robert Half
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Loan Administration Senior Associate
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Join our London team as a Loan Administration Senior Associate. You will administer and monitor the full lifecycle of loan and guarantee investments, ensuring accuracy and smooth execution. The role requires strong debt product knowledge, experience with systems like eFront, and excellent organis...
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United Kingdom , London
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Not provided
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Orbis Consultants
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Senior Analyst - Administrative Assistance
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Seeking a seasoned Senior Analyst for Administrative Assistance in Taguig. Provide high-level executive support, managing complex calendars, travel, and confidential documents. The role requires 7+ years of experience, proficiency in MS Office, and flexibility for hybrid work across global shifts...
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Philippines , Taguig, Metro Manila
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Not provided
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Willis Towers Watson
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Senior Systems Administrator
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Join Barbaricum as a Senior Systems Administrator in Bedford, IN. This role focuses on Windows workstation provisioning, image management, and automated OS deployment in a secure DoD environment. You will design and maintain enterprise deployment solutions using MDT/MECM and PowerShell. An active...
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United States , Bedford
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Not provided
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Barbaricum
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Subcontracts Administrator Senior Principal
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Seeking a Senior Principal Subcontracts Administrator in Westminster, CO. This role requires a TS/SCI clearance and 8+ years' experience to manage complex supplier relationships and strategic procurements for critical programs. You will execute full subcontract lifecycle management, including cos...
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United States , Westminster
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118747.00 - 201870.00 USD / Year
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Baesystems
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Senior Administrative Assistant
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Join Baptist Health's Information Services Team as a Senior Administrative Assistant in a hybrid role at our Jacksonville campus. Provide crucial support to senior management, managing complex calendars, communications, and confidential records. This role requires 1-2 years of office experience, ...
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United States , Jacksonville
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Not provided
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Baptist Health (Florida)
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Senior Jira Administrator
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Seeking a Senior GRC Systems Administrator in Hyderabad to configure and optimize our RSA Archer platform. You will build data models, design workflows, and support risk, compliance, and third-party risk processes. This role requires technical expertise in GRC platforms and a strong understanding...
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India , Hyderabad
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Salary
4166.00 - 6300.00 EUR / Month
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Alter Domus
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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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