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IT System and Administrator Jobs

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System Administrator
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Join our Atlanta-based team as a System Administrator. You will manage Azure AD, Office 365, and Hyper-V environments, ensuring optimal performance and security. We seek a skilled professional with strong troubleshooting abilities. We offer a comprehensive benefits package including medical, dent...
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United States , Atlanta
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Robert Half
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System Administrator
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Join our Atlanta-based team as a System Administrator. You will manage Azure AD, Office 365, and Hyper-V environments, ensuring optimal performance and security. We seek a skilled professional with strong troubleshooting abilities. This role offers a comprehensive benefits package including medic...
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United States , Atlanta
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Robert Half
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Systems Administrator
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Join our team in Irving, Texas as a Systems Administrator. You will support our unique retail POS system and manage IT vendor relationships. Requires 5+ years of retail IT experience, expertise in Active Directory, Windows, SonicWall, and hardware. We offer comprehensive benefits including medica...
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United States , Irving
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Robert Half
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Linux Systems Administrator
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Join Fyld in Lisbon as a Linux Systems Administrator. Utilize your 4+ years of experience with CentOS, Ubuntu, and automation tools like Ansible. You will manage web/database servers, implement security, and work with cloud platforms. We focus on training and excellence for peak performance.
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Portugal , Lisboa
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Fyld
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Windows Systems Administrator
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Join Fyld in Lisbon as a Windows Systems Administrator. Utilize your 4+ years of experience managing Windows Server, Active Directory, and O365. Expertise in VMware/Hyper-V and backup solutions is key. We value high standards and offer a focus on training and excellence.
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Portugal , Lisboa
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Fyld
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ServiceNow System Administrator
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Join Inetum as a ServiceNow System Administrator in Lisbon. You will configure and administer the platform, focusing on ITSM and CMDB modules. The role requires 3+ years of experience, strong JavaScript skills, and proficiency in English. Contribute to digital innovation within a leading European...
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Portugal , Lisbon
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Inetum
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ServiceNow - CMDB System Administrator
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Seeking a ServiceNow CMDB System Administrator in Lisbon. This role requires 5+ years of experience, CSA certification, and deep expertise in CMDB configuration, ITSM, and workflows. You will manage CMDB health, drive automation, and support continuous improvement within a leading digital service...
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Portugal , Lisbon
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Inetum
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Federal HPC Linux System Administrator
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Join HPE as a Federal HPC Linux System Administrator in Annapolis Junction. Provide technical leadership managing mission-critical HPC systems, including RHEL/SLES, parallel file systems, and networking. Utilize scripting skills (Python, Perl) for optimization and problem resolution within a supp...
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United States , Annapolis Junction
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115500.00 - 266000.00 USD / Year
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Hewlett Packard Enterprise
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High Performance Computing System Administrator
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Seeking a TS-cleared HPC System Administrator in Aberdeen. This role involves maintaining high-performance computing systems, ensuring security compliance, and providing 24/7 support. Requires 8+ years' experience, Linux+/Security+ certs, and offers a $20K annual bonus.
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United States , Aberdeen
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101900.00 - 234500.00 USD / Year
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Hewlett Packard Enterprise
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Infrastructure Senior Tech Analyst – ORMB System Administrator
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Seeking an experienced ORMB System Administrator in Pune. You will manage Oracle Revenue Management and Billing (v2.9/3.X+) on RHEL/Oracle 19C/WebLogic. Key duties include environment setup, cloning, performance tuning, and automation. Expertise in Oracle DB, middleware, and modern DevOps/SRE pra...
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India , Pune
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Citi
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Systems Administrator
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Seeking a skilled Systems Administrator for our Oak Brook healthcare team. You will manage VMware, Microsoft 365, and Windows systems, ensuring security and efficiency. This role requires 3+ years of healthcare IT experience, PowerShell scripting, and strong problem-solving skills. We offer compr...
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United States , Oak Brook
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Robert Half
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Cloud System Administrator
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Seeking a Cloud System Administrator in Lexington to oversee our AWS infrastructure and ensure optimal performance. Your role will involve automation with Ansible, security configuration, and managing systems like EC2 and Cloudflare. We offer comprehensive benefits including medical, dental, and ...
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United States , Lexington
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Robert Half
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Systems Administration Professional
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Join our Houston team as a Systems Administration Professional. You will manage our IT infrastructure, ensuring security and reliability. The role requires 3-5 years' experience, networking knowledge, and Salesforce platform familiarity. We offer comprehensive benefits and a supportive environment.
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United States , Houston
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Robert Half
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Systems Administrator
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Seeking a skilled Systems Administrator in Anoka to manage IT infrastructure, optimize networks, and implement cybersecurity strategies. This role requires 5+ years of experience in system administration and project coordination. You will ensure operational efficiency, resolve technical issues, a...
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United States , Anoka
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Robert Half
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Systems Administrator
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Join our team as a Systems Administrator in Charlotte, USA. You will manage and maintain enterprise Windows/Linux servers and virtualization platforms like VMware/Hyper-V. The role requires 3-5 years of experience, scripting skills, and offers full benefits including medical, dental, and a 401(k)...
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United States , Charlotte
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Robert Half
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Cloud System Administrator
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Seeking a Cloud System Administrator in West Chester to manage Azure, Office 365, and Active Directory infrastructure. You will implement IaC with Terraform, oversee API management, and ensure security. This role offers competitive compensation, comprehensive benefits, and access to top-tier trai...
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United States , West Chester
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Robert Half
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Systems Administrator, Data Loss Prevention
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Join our team in Budapest as a Systems Administrator specializing in Data Loss Prevention (DLP). You will manage and secure the DLP infrastructure, ensuring performance and compliance. The role requires 5+ years of sysadmin experience with DLP solutions and ITIL knowledge. We offer a comprehensiv...
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Hungary , Budapest
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Citi
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Systems Administrator
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Join our tech client in Ames, Iowa, as a Systems Administrator/Network Engineer. Deploy Windows images, manage O365/Intune, and support Cisco hardware in this direct-hire role. Enjoy full benefits, a 401(k), and a salary up to $95K for your 3+ years of systems administration expertise.
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United States , Ames
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95000.00 USD / Year
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Robert Half
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Lead Systems Administrator
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Lead Windows Systems Administrator role south of Warwick, RI. This hybrid position requires 10+ years of IT experience to manage Windows Server, Active Directory, and cloud (Azure/AWS) environments. You will lead a team, drive modernization, and ensure system security. We offer competitive compen...
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United States , South of Warwick, RI
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Not provided
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Robert Half
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Learning Management Systems Administrator
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Join our team as an LMS Administrator for a 1-year FTC in Harrow, with hybrid working. You will manage and enhance our Cornerstone on Demand platform, ensuring efficient operation and user support. We seek an organised professional with strong problem-solving skills and LMS experience. Enjoy bene...
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United Kingdom , Harrow
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28000.00 - 35000.00 GBP / Month
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Office Angels
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Explore a world of opportunity in IT System and Administrator jobs, a critical profession that forms the backbone of modern organizational technology. Professionals in this field are responsible for the installation, configuration, maintenance, and security of an organization's computer systems and networks. Their core mission is to ensure that IT infrastructure—from servers and storage to cloud services and user workstations—remains reliable, efficient, and secure, enabling all other business functions to operate smoothly. A career in system administration typically involves a diverse set of responsibilities. System Administrators manage core services like user accounts, email systems, and directory services (e.g., Active Directory). They oversee server environments, which may include physical hardware, virtualized platforms (like VMware), and cloud resources (such as AWS or Azure). Daily tasks often encompass monitoring system performance, applying software updates and security patches, managing backups and disaster recovery plans, and troubleshooting hardware and software issues. They also enforce IT security policies, configure firewalls, and implement access controls to protect sensitive data from breaches. Furthermore, creating and maintaining detailed technical documentation for procedures and system configurations is a standard part of the role. The skill set required for these jobs is both broad and deep. Strong foundational knowledge of operating systems—particularly Windows Server and Linux distributions—is essential. Proficiency in networking concepts (TCP/IP, DNS, DHCP) and experience with scripting languages like PowerShell, Bash, or Python for automation are highly valued. Familiarity with cloud platforms, virtualization technologies, and containerization (e.g., Docker) is increasingly important. Beyond technical prowess, successful System Administrators possess excellent problem-solving and analytical abilities to diagnose and resolve complex issues. They must have clear communication skills to interact with colleagues, provide user support, and explain technical concepts to non-technical stakeholders. A methodical approach, attention to detail, and a commitment to following IT security best practices and compliance frameworks are paramount. Typical requirements for IT System and Administrator jobs often include a bachelor’s degree in computer science, information technology, or a related field, though relevant experience and professional certifications can be equally persuasive. Certifications such as Microsoft Certified: Azure Administrator, CompTIA Security+, Network+, Linux+, or those from VMware and AWS are common and demonstrate specialized expertise. The role suits individuals who are proactive, eager to continuously learn in a fast-evolving field, and capable of working both independently and as part of a collaborative IT team. If you are passionate about building stable, secure, and scalable technological environments, exploring system administrator jobs could be your pathway to a rewarding and indispensable career.

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