148 Results for Systems Security Administrator Jobs

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Systems Security Engineer

San Antonio, TX
onsite
Permanent / Full Time
95000 - 115000 USD / Yearly
We are looking for a Systems Security Engineer to strengthen and secure enterprise infrastructure for a respected financial institution in San Antonio, Texas. This position blends hands-on systems administration with a strong security focus, making it well suited for someone who can protect Windows-based environments while advancing consistent controls across the organization. The individual in this role will help elevate the company’s security posture through practical hardening measures, policy enforcement, and close collaboration with technical and business stakeholders. Responsibilities: • Build, deploy, and support secure infrastructure solutions across both on-premises systems and cloud-based platforms. • Manage and enhance Microsoft security and identity tools, including Intune, Entra ID, Defender, Active Directory, and Group Policy, to improve control and visibility. • Define and apply security configuration standards that align with recognized benchmarks and enterprise best practices. • Drive initiatives related to server hardening, patching, vulnerability resolution, and ongoing configuration oversight. • Create and maintain endpoint protection standards and device compliance rules to support a secure user environment. • Review security alerts, examine potential threats, and coordinate timely corrective actions with the appropriate teams. • Partner with infrastructure, networking, and IT leadership to promote standardized security processes and technology practices. • Provide administration and support for core Windows Server services and related enterprise infrastructure components. • Contribute to audits, risk reviews, and compliance activities associated with regulated financial environments.
2026-10-20T00:00:00Z

Systems Security Engineer

West Valley City, UT
onsite
Permanent / Full Time
145000 - 165000 USD / Yearly
Want to build security, not just maintain it?This isn’t a role where you’ll inherit a mature security program, spend your days updating policies, or stay buried in one narrow piece of the environment.We’re looking for an experienced security focused Systems Engineer who wants to take real ownership of security and compliance while staying hands-on with the technology behind it.You’ll serve as a go-to security expert across the organization, partnering closely with IT leadership to strengthen the security program, advance CMMC and NIST compliance, and tackle infrastructure and systems initiatives along the way.And yes, there’s a pretty great perk: work four 10-hour days and get a three-day weekend every week. Why This Role Is DifferentThis is a newly created position, which means there’s an opportunity to put your fingerprints on the security program rather than simply stepping into someone else’s playbook.You’ll have:<ul><li>Ownership: Help build, mature, and operationalize the security and compliance program.</li><li>Executive visibility: Work closely with IT leadership and the CTO on security strategy, risk, and framework roadmaps.</li><li>Hands-on technical work: Security is the priority, but you’ll still work with systems, infrastructure, identity, endpoints, networking, Microsoft 365, and cloud technologies.</li><li>Autonomy: You’ll be trusted to own projects, make recommendations, communicate risk, and drive initiatives forward.</li><li>Variety: Work across security, compliance, infrastructure, and systems rather than being siloed into one narrow function.</li><li>A 4/10 schedule: Four workdays. Three-day weekends. Enough said.</li></ul>What You’ll OwnYour center of gravity will be security and compliance, particularly within a government contracting environment.You’ll:<ul><li>Drive readiness and ongoing compliance for CMMC Level 2 and NIST SP 800-171.</li><li>Support SOC 2 and PCI DSS initiatives, including control design, evidence collection, remediation, and audit coordination.</li><li>Take security and infrastructure projects from idea to implementation, managing timelines, stakeholders, vendors, risks, and deliverables.</li><li>Administer and improve security technologies across endpoint protection, IAM, SIEM, MFA, email security, vulnerability management, and logging.</li><li>Lead access reviews, security awareness efforts, phishing simulations, and incident-response tabletop exercises.</li><li>Develop the policies, procedures, and security plans required for compliance, then make sure those controls actually work in the real world.</li><li>Partner with leadership on security risk, vendor reviews, customer requirements, and business decisions.</li><li>Roll up your sleeves alongside the IT team on Microsoft 365, Entra ID, servers, networking, endpoints, identity, and other infrastructure initiatives.</li></ul>
2026-10-20T00:00:00Z

Systems Administrator

Dania Beach, FL
onsite
Temporary to Hire
40 - 48 USD / Hourly
We are looking for a Systems Administrator to join an IT team in Dania Beach, Florida in a contract-to-permanent capacity. This role is ideal for a hands-on infrastructure specialist who can strengthen day-to-day operations across server administration, virtualization, backup, and recovery. The position focuses heavily on Hyper-V while also supporting VMware ESXi, Veeam, Windows Server, and core cloud, security, and networking functions. Responsibilities: • Administer and support virtual server environments with a strong emphasis on Hyper-V, ensuring reliable performance and timely issue resolution. • Maintain and troubleshoot VMware ESXi infrastructure as part of a mixed virtualization environment. • Manage backup, restore, and recovery processes using Veeam to protect business-critical systems and data. • Oversee Windows Server administration, including system maintenance, patching, performance monitoring, and operational support. • Contribute to disaster recovery readiness by validating recovery procedures and responding to infrastructure incidents when needed. • Support core cloud, security, and networking operations to help maintain a stable and secure production environment. • Investigate outages and infrastructure problems, identify root causes, and implement corrective actions to improve reliability. • Lead or contribute to infrastructure improvements, migrations, and operational projects while documenting work performed and outcomes achieved.
2026-09-30T00:00:00Z

Systems Administrator

Macedonia, OH
onsite
Temporary / Contract
0 - 0 USD / Yearly
We are looking for a Systems Administrator for a contract-to-hire opportunity in Macedonia, Ohio. This position blends hands-on technical support with entry-level Salesforce administration, making it ideal for someone who enjoys solving user issues while expanding their platform expertise. The role offers a hybrid work arrangement and the chance to build experience across both day-to-day support operations and business system administration. Responsibilities:• Deliver first- and second-level technical support for employees experiencing hardware, software, and access-related problems.• Investigate and address Salesforce user issues, escalating more complex matters when needed to keep systems running effectively.• Build and update reports and dashboards within Salesforce to help teams access meaningful business information.• Manage user accounts, permissions, and basic platform settings to support secure and efficient system use.• Assist with onboarding activities by preparing accounts, configuring access, and resolving setup-related questions for new team members.• Work closely with internal technology teams and Salesforce specialists to support system improvements and ongoing service needs.• Track support requests through resolution while maintaining clear communication with end users throughout the process.
2026-10-20T00:00:00Z

Systems Administrator

Laconia, NH
onsite
Permanent / Full Time
70000 - 100000 USD / Yearly
We are looking for an experienced Systems Administrator to support core infrastructure and end-user technology in Laconia, New Hampshire. This role oversees server environments, desktop systems, connected devices, and helpdesk support while helping the business translate operational needs into practical technical solutions. The ideal candidate brings strong troubleshooting ability, sound judgment, and a hands-on background managing both Windows and Linux-based environments. Responsibilities: • Partner with business teams to gather requirements, define technical scope, and outline workflows for infrastructure-related projects and system improvements. • Plan and carry out testing for operating system, hardware, and software changes, documenting results to promote stable production releases. • Execute system installations, updates, migrations, and production deployments across server and end-user computing environments. • Create and maintain accurate technical documentation, including network diagrams, process flows, operating procedures, recovery steps, and user guidance materials. • Investigate and resolve issues involving applications, hardware, servers, and network communications to minimize disruption to business operations. • Provide instruction to end users on procedures and best practices needed to effectively operate assigned technology and equipment. • Build, configure, upgrade, and repair personal computers and related systems to meet organizational standards and user needs. • Contribute technical expertise to special projects and keep leadership informed through regular status updates and progress reporting. • Participate in a rotating on-call schedule to support systems during and outside standard business hours as needed.
2026-10-06T00:00:00Z

Systems Administrator

Oklahoma City, OK
onsite
Permanent / Full Time
120000 - 170000 USD / Yearly
An Oklahoma-based company is seeking an experienced Salesforce Administrator to configure, support, maintain, and optimize its Salesforce environment. This role will be responsible for ensuring the platform effectively supports business processes, user needs, reporting requirements, and overall system performance. The ideal candidate will bring strong hands-on Salesforce administration experience, along with prior experience in a financial services environment. Responsibilities-<ul><li>Configure, administer, and maintain the Salesforce platform to support business operations</li><li>Optimize the Salesforce environment for usability, scalability, and performance</li><li>Manage user setup, profiles, roles, permissions, workflows, validation rules, dashboards, and reports</li><li>Support end users by troubleshooting issues, resolving system challenges, and providing ongoing guidance</li><li>Partner with stakeholders to gather business requirements and translate them into effective Salesforce solutions</li><li>Identify opportunities for process improvement, automation, and system enhancement</li><li>Maintain data integrity through regular audits, cleanup, and governance best practices</li><li>Support integrations, system updates, testing, and deployment activities</li><li>Create and maintain documentation related to system configuration, processes, and user training</li><li>Serve as a key resource for Salesforce best practices and platform optimization</li></ul>
2026-10-15T00:00:00Z

Systems Administrator

Salt Lake City, UT
onsite
Temporary / Contract
41.1635 - 47.663 USD / Hourly
We are looking for a senior Systems Administrator to join our client’s team in Salt Lake City, Utah on a Contract basis. This role is suited for an experienced Tier 3 infrastructure specialist who excels at resolving high-impact technical challenges across complex environments. The position combines advanced troubleshooting, cross-functional collaboration, and technical leadership to support stable, secure, and high-performing systems. Responsibilities: • Tackle advanced escalations involving servers, networks, cloud services, and enterprise platforms, acting as the highest internal technical resource before external vendors are engaged. • Provide hands-on support at client sites when critical infrastructure problems require direct intervention to restore services quickly and effectively. • Drive timely closure of Tier 3 service requests and major incidents while maintaining strong accountability for service quality and operational outcomes. • Guide entry-level support staff by sharing expertise, strengthening troubleshooting practices, and helping teams make appropriate escalation decisions. • Lead post-incident investigations to identify root causes, document technical findings, and recommend preventive measures that improve long-term reliability. • Partner with infrastructure, security, and project stakeholders to plan, deploy, and support sophisticated technology solutions across client environments. • Monitor service performance through documentation platforms, ticketing tools, and reporting dashboards to ensure visibility into trends, response metrics, and support effectiveness. • Participate in the on-call rotation and take ownership of urgent after-hours issues, ensuring critical incidents receive prompt and effective resolution.
2026-10-27T00:00:00Z

Systems Administrator

Los Angeles, CA
onsite
Permanent / Full Time
125000 - 145000 USD / Yearly
Systems Administrator OverviewA growing organization is seeking a Systems Administrator to support enterprise cloud platforms, end-user technologies, identity management, and core infrastructure services. This individual will play a key role in maintaining secure, scalable, and reliable technology operations while supporting ongoing modernization and automation initiatives. The ideal candidate combines strong systems administration experience with a proactive approach to process improvement, platform management, and end-user support. Responsibilities<ul><li>Administer and support enterprise productivity, collaboration, and cloud platforms</li><li>Manage identity, access, authentication, and user lifecycle processes</li><li>Support endpoint management, device administration, and security initiatives</li><li>Maintain backup, recovery, and business continuity processes</li><li>Assist with integration and administration of enterprise applications and SaaS platforms</li><li>Develop and maintain automation solutions to improve operational efficiency</li><li>Monitor platform health, system performance, and operational reliability</li><li>Troubleshoot and resolve complex infrastructure and application issues</li><li>Maintain technical documentation, standards, and operational procedures</li><li>Partner with internal stakeholders to support technology initiatives and business operations</li></ul>
2026-10-21T00:00:00Z

Systems Administrator

Houston, TX
onsite
Temporary to Hire
42.75 - 49.5 USD / Hourly
We are looking for a Systems Administrator to support daily IT operations and provide advanced technical assistance for users and internal teams in Houston, Texas. This contract position with potential for a permanent role is ideal for someone who can balance hands-on troubleshooting with process improvement, documentation, and cross-functional collaboration. The role will focus on maintaining stable support services, strengthening operational efficiency, and contributing to infrastructure and security-related initiatives. Responsibilities: • Address escalated technical issues with urgency, diagnosing complex problems and restoring services with minimal impact to business activities. • Serve as a key resource for higher-level support matters by guiding frontline staff, handling second-level support ownership, and sharing practical troubleshooting knowledge. • Administer and enhance IT service management platforms to improve ticket flow, service quality, and team effectiveness. • Develop and update internal support materials, including standard procedures, knowledge articles, and technical reference documentation. • Partner with infrastructure, security, application, and external support teams to resolve recurring issues and improve overall service delivery. • Track service desk trends and performance data, then recommend adjustments that strengthen response times and operational processes. • Contribute to technical initiatives such as platform upgrades, software rollouts, and security-focused projects across the environment. • Provide in-person deskside assistance for end users when issues require hands-on support beyond externally managed services.
2026-10-28T00:00:00Z

Systems Administrator

Charlotte, NC
onsite
Temporary / Contract
40 - 50 USD / Hourly
We are looking for a Systems Administrator to support a manufacturing organization in Charlotte, North Carolina with a strong focus on Microsoft 365, identity services, and endpoint administration. This Long-term Contract opportunity is ideal for a hands-on detail-oriented individual who can quickly assess technical environments, resolve complex issues, and deliver practical improvements with limited supervision. The role begins with a significant onsite presence and transitions into a hybrid schedule as business needs evolve. Responsibilities: • Direct directory services and identity-related work tied to domain consolidation activities, ensuring a smooth user experience during environment changes. • Administer core Microsoft 365 platforms, including Exchange Online, Entra ID, licensing, mailbox support, and user account governance. • Guide user movement across separate domains and cloud environments while maintaining secure access and operational continuity. • Review current infrastructure and recommend enhancements that strengthen reliability, security, and day-to-day efficiency. • Investigate and resolve advanced issues involving authentication, system performance, user access, and connected endpoint services. • Provide technical support across infrastructure and end-user computing, acting as a key resource for systems and device-related needs. • Execute laptop setup, deployment, configuration, and user migration tasks for approximately 60 internal employees. • Partner with operations leadership to prioritize work, communicate technical findings clearly, and carry initiatives forward as an independent contributor. • Apply security and compliance expectations in daily administration activities, including follow-up actions related to audit-driven standards.
2026-10-08T00:00:00Z

Systems Administrator

Morrisville, VT
onsite
Permanent / Full Time
60000 - 85000 USD / Yearly
We're seeking a hands-on Systems & Network Administrator to support and maintain an organization's IT infrastructure. This role will be responsible for managing servers, networks, security, cloud services, and end-user support while helping drive technology improvements across the business. Key Responsibilities:<ul><li>Administer and support Windows servers, Active Directory, Microsoft 365, networking, and virtualization environments.</li><li>Monitor system performance, troubleshoot infrastructure issues, and ensure security best practices are followed.</li><li>Manage backups, disaster recovery processes, system upgrades, and hardware/software deployments.</li><li>Provide technical support to users and collaborate with stakeholders on IT projects and initiatives.</li></ul> This is an excellent opportunity to join a stable organization where you'll have a broad impact on technology strategy and day-to-day operations while working in Vermont's beautiful Lamoille County region.
2026-10-06T00:00:00Z

Systems Administrator

South Burlington, VT
onsite
Permanent / Full Time
80000 - 120000 USD / Yearly
We are seeking a Senior Systems Administrator to play a key role in maintaining, securing, and optimizing our client's enterprise infrastructure. The ideal candidate is a hands-on technical professional who enjoys solving complex infrastructure challenges, improving automation, and helping drive modernization across cloud and on-premises systems. Responsibilities<ul><li>Administer and support Microsoft 365 services including Exchange Online, Entra ID (Azure AD), Teams, SharePoint Online, and OneDrive.</li><li>Manage endpoint deployment, configuration, compliance, and lifecycle management using Microsoft Intune and MDM solutions.</li><li>Maintain and troubleshoot Windows Server infrastructure, Active Directory, Group Policy, DNS, DHCP, and file services.</li><li>Support and administer Linux servers for application hosting, monitoring, and system maintenance.</li><li>Implement and maintain security controls across the environment, including MFA, Conditional Access, endpoint protection, vulnerability remediation, and identity governance.</li><li>Monitor infrastructure performance, availability, and security utilizing enterprise monitoring and logging tools.</li><li>Participate in security audits, risk assessments, incident response, and remediation efforts.</li><li>Manage user provisioning, access control, and role-based security policies.</li><li>Assist with backup, disaster recovery, and business continuity planning.</li><li>Develop and maintain system documentation, procedures, and technical standards.</li><li>Support infrastructure projects including migrations, upgrades, cloud adoption initiatives, and automation efforts.</li><li>Collaborate with vendors, business stakeholders, and internal IT teams to resolve issues and implement new technologies.</li></ul>
2026-09-24T00:00:00Z

Systems Administrator

Greenville, SC
onsite
Temporary to Hire
32 - 38 USD / Hourly
We are looking for a Systems Administrator to join a manufacturing client in Greenville, South Carolina in a contract-to-hire capacity. This fully onsite position will strengthen internal IT operations while improving the reliability of end-user and infrastructure support. The role combines hands-on technical administration with daily user assistance, making it ideal for someone who is comfortable managing both systems and support responsibilities in a fast-paced environment. Responsibilities:• Provide day-to-day technical support for employees across a manufacturing site, resolving hardware, software, and access-related issues in a timely manner.• Administer Windows-based systems and user environments, including account management, device configuration, and operating system support.• Manage Microsoft 365, Azure, and Entra ID administration to maintain secure access, identity controls, and productivity services.• Configure and maintain Group Policy settings, security permissions, and endpoint policies to support organizational standards.• Prepare, deploy, and refresh user devices through imaging and Intune-based device management processes.• Support local network hardware and infrastructure, helping ensure stable connectivity and dependable on-premises operations.• Partner with internal IT staff to expand in-house technical capabilities and strengthen support coverage for the facility.• Contribute to infrastructure improvement efforts, including initiatives related to moving on-premises environments into Azure cloud services.• Assist with SharePoint and related collaboration tools when needed as part of broader systems support activities.
2026-10-22T00:00:00Z

Systems Administrator

Nashville, TN
onsite
Temporary / Contract
35 - 40 USD / Hourly
Robert Half is currently seeking a Contract Systems Administrator to join our client's IT department. As a Contract Systems Administrator, you will be responsible for the configuration, maintenance, and management of the organization's computer systems, servers, and network infrastructure. This is a contract position that offers an exciting opportunity to work with a reputable company. Key Responsibilities:<ol><li>System Maintenance: Perform routine system maintenance, including software updates, patch management, and regular system backups to ensure system stability and security.</li><li>Server Administration: Manage and maintain server hardware and software, including Windows Server, Linux, or other relevant operating systems.</li><li>Network Management: Oversee network infrastructure, ensuring optimal performance, security, and reliability. This may include switches, routers, firewalls, and wireless access points.</li><li>Security Monitoring: Implement and monitor security protocols to safeguard systems and data, detect and respond to security breaches, and conduct regular security audits.</li><li>User Support: Provide technical support to end-users, assisting with system-related issues, troubleshooting, and offering guidance on best practices.</li><li>Documentation: Maintain detailed records of system configurations, changes, and updates to facilitate system troubleshooting and auditing.</li><li>Capacity Planning: Assess system performance and capacity, making recommendations for upgrades or enhancements to meet organizational needs.</li><li>Backup and Disaster Recovery: Develop and implement backup and disaster recovery plans to ensure data integrity and continuity of operations.</li><li>Vendor Collaboration: Collaborate with technology vendors to ensure timely procurement of hardware and software, and manage vendor relationships.</li></ol>
2026-10-14T00:00:00Z

Systems Administrator

Phoenix, AZ
onsite
Temporary / Contract
0 - 0 USD / Yearly
We are hiring a Systems Administrator to provide day-to-day support for core infrastructure systems. This individual will be responsible for maintaining server environments, troubleshooting technical issues, and supporting end-user technology operations.Responsibilities<ul><li>Administer Windows Server, Active Directory, and Microsoft 365 environments.</li><li>Maintain user accounts, permissions, and security groups.</li><li>Perform system monitoring, maintenance, and patch management.</li><li>Troubleshoot server, application, and infrastructure issues.</li><li>Support backup, recovery, and endpoint management solutions.</li><li>Assist with network troubleshooting and connectivity issues.</li><li>Document support procedures and system configurations.</li><li>Provide Tier II/III technical support when necessary.</li></ul>
2026-10-16T00:00:00Z

Systems Administrator

Park City, UT
remote
Temporary / Contract
35.625 - 41.25 USD / Hourly
We are looking for a Systems Administrator to join a contract engagement based in Park City, Utah. This role is suited for an experienced Windows infrastructure specialist who can evaluate legacy server environments, uncover operational dependencies, and provide clear recommendations for next steps. The assignment will focus on assessing existing systems, documenting their business purpose, and helping stakeholders decide whether platforms should remain in place, be moved, or be retired. Responsibilities: • Conduct a detailed review of legacy Windows servers to determine their current role, usage, and operational status across the environment. • Investigate hosted applications, background services, and system dependencies to build an accurate picture of each server's function. • Partner with technical and business stakeholders to confirm which business processes rely on identified infrastructure. • Document findings from discovery activities and translate technical details into practical recommendations for retention, migration, or decommissioning. • Analyze Active Directory and Windows domain relationships to identify connectivity, access, and dependency considerations. • Assess server configurations and supporting components, including Microsoft Azure, Kaseya, and SQL Server-related environments where applicable. • Create clear inventories, assessment summaries, and risk notes to support future infrastructure modernization planning. • Provide informed guidance on remediation priorities and next-step actions based on the condition and relevance of legacy systems.
2026-10-27T00:00:00Z

Systems Administrator

Austin, TX
onsite
Temporary / Contract
25 - 30 USD / Hourly
We are looking for a Systems Administrator to support daily IT operations and provide dependable technical assistance to employees in Austin, Texas. This contract opportunity with permanent potential is ideal for someone who enjoys hands-on support work while contributing to core infrastructure, end-user systems, and security-focused initiatives. The role combines desktop support, server administration, Microsoft 365 assistance, and environment maintenance in a collaborative technology setting. This is a hybrid role in Austin, Tx. Responsibilities:• Deliver front-line technical support for employees by resolving issues involving workstations, laptops, applications, printers, connectivity, and user access• Set up, maintain, and troubleshoot desktop and laptop hardware, operating systems, and business software across the organization• Support the Microsoft 365 environment, including collaboration and productivity platforms such as SharePoint, Office, Teams, and Teams Voice• Contribute to cybersecurity efforts by helping maintain a secure computing environment and addressing routine protection measures• Assist with oversight and upkeep of the virtual server infrastructure using VMware vSphere and vCenter tools• Perform regular server administration activities, including health checks, monitoring, and basic maintenance tasks• Help manage user accounts, permissions, and directory services within the Active Directory environment• Apply updates, security fixes, and system changes to Mac devices to maintain stability and compliance• Track technology assets by coordinating lease timelines, equipment refreshes, and replacement planning• Create and maintain clear technical documentation for support procedures, endpoint configuration, and server operations
2026-10-27T00:00:00Z

Systems Administrator

Beverly Hills, CA
onsite
Temporary / Contract
45.9135 - 53.163 USD / Hourly
We are seeking a Systems Administrator to support Microsoft 365, endpoint management, workstation deployments, and end-user support in a modern Microsoft cloud environment. This role will be responsible for managing Microsoft Entra ID, Intune, Windows devices, user access, security policies, and device lifecycle activities while delivering excellent customer service to end users. Responsibilities<ul><li>Administer and support Microsoft Entra ID, Microsoft Intune, and Microsoft 365 environments.</li><li>Manage user accounts, groups, permissions, licensing, devices, and access controls.</li><li>Deploy, configure, and support Windows 11 laptops and workstations.</li><li>Migrate devices to Entra ID Join and enroll endpoints into Intune.</li><li>Configure and maintain Intune policies, application deployments, device compliance, and endpoint security controls.</li><li>Support Windows Autopilot, Conditional Access, BitLocker, Windows Hello for Business, and Microsoft Defender for Endpoint.</li><li>Provide Tier II/Tier III support for workstation, authentication, Microsoft 365, hardware, software, and mobile device issues.</li><li>Support BYOD, MDM/MAM, and mobile device administration for iOS and Android devices.</li><li>Assist with Active Directory, file shares, printers, and general infrastructure administration.</li><li>Create and maintain technical documentation, deployment procedures, and support knowledge articles.</li><li>Participate in IT infrastructure, security, and cloud transformation projects.</li><li>Provide white-glove support to employees and leadership during device deployments and migrations.</li></ul>
2026-10-28T00:00:00Z

Systems Administrator

Manchester, NH
onsite
Permanent / Full Time
0 - 0 USD / Yearly
Systems AdministratorWe're looking for a hands-on Systems Administrator to support and enhance our IT infrastructure in a fully onsite, 5 days per week role. This position will be responsible for managing servers, supporting the Microsoft 365 environment, and helping drive automation and efficiency across the organization. What You'll Do:<ul><li>Administer and support Windows Server environments</li><li>Manage and optimize the Microsoft 365 platform, including Exchange Online, Teams, and Entra ID</li><li>Develop and maintain solutions using Power Apps and the Power Platform</li><li>Monitor system performance, security, backups, and patch management</li><li>Troubleshoot infrastructure, application, and user support issues</li><li>Collaborate with IT leadership on technology improvements and projects</li></ul> If you enjoy solving technical challenges, improving systems, and working in a collaborative environment, we'd love to hear from you.
2026-10-27T00:00:00Z

Systems Administrator

O Fallon, MO
onsite
Permanent / Full Time
70000 - 85000 USD / Yearly
We're partnering with a growing organization seeking a Systems Administrator to join their close-knit IT team. This is a great opportunity for someone with a solid foundation in Microsoft technologies who enjoys hands-on infrastructure work and wants to continue growing their skills.You'll work alongside experienced IT professionals supporting a Microsoft-focused environment while gaining exposure to new technologies, infrastructure projects, and emerging Microsoft AI solutions. This is an onsite role that does require 1 Saturday a month virtual for pushing updates What You'll Be Doing<ul><li>Administer and support Microsoft 365 and Exchange Online</li><li>Maintain and troubleshoot Windows Server environments</li><li>Manage Active Directory and Entra ID user accounts, groups, and permissions</li><li>Assist with onboarding, offboarding, and access management</li><li>Monitor system health, performance, and availability</li><li>Perform server patching, upgrades, and routine maintenance</li><li>Support backup and recovery processes</li><li>Troubleshoot infrastructure and end-user issues</li><li>Assist with administration of the company's 3CX VoIP environment</li><li>Participate in infrastructure improvements and technology implementations</li><li>Explore and evaluate new Microsoft technologies, including AI-related initiatives</li></ul>
2026-10-14T00:00:00Z

Systems Administrator

Milwaukee, WI
onsite
Permanent / Full Time
70000 - 80000 USD / Yearly
Robert Half is partnering with a well-established technology organization in the Milwaukee area to help them hire an experienced Systems Administrator. This role is responsible for maintaining server, virtualization, identity, database, and application-hosting technologies while helping ensure systems remain secure, reliable, and available for both internal teams and external customers. This is a hands-on position for someone who enjoys troubleshooting, automation, infrastructure improvement, and working across a broad range of technologies. What You'll Be Doing<ul><li>Administer and support Windows Server environments across production and non-production systems</li><li>Manage Active Directory, Group Policy, user access, and identity-related services</li><li>Support Microsoft SQL Server environments, including maintenance, backups, and recovery processes</li><li>Configure and maintain virtualization platforms such as VMware, Citrix, and Remote Desktop Services</li><li>Support web and application hosting technologies including IIS, Tomcat, and related services</li><li>Monitor system performance, availability, and security while proactively addressing issues</li><li>Develop and maintain automation and scripting solutions using PowerShell and other tools</li><li>Troubleshoot infrastructure, application, and network-related problems</li><li>Create and maintain technical documentation, procedures, and system configurations</li><li>Participate in an on-call rotation and assist with incident response when needed</li></ul>
2026-10-20T00:00:00Z

Systems Administrator

Jacksonville, FL
onsite
Temporary / Contract
0 - 0 USD / Yearly
We are seeking a Systems Administrator to support and maintain enterprise Windows server environments, Active Directory, Microsoft 365, virtualization platforms, and core IT infrastructure. This role is responsible for system reliability, security, patch management, and user support.Responsibilities<ul><li>Administer Windows Servers and Active Directory.</li><li>Manage Microsoft 365, Exchange Online, and Entra ID.</li><li>Support VMware or Hyper-V environments.</li><li>Perform system upgrades, patching, and maintenance.</li><li>Monitor infrastructure performance and availability.</li><li>Troubleshoot server, storage, and application issues.</li><li>Maintain backups and disaster recovery processes.</li><li>Document systems and operational procedures.</li></ul>
2026-10-09T00:00:00Z

Systems Administrator

Dania Beach, FL
onsite
Temporary / Contract
35 - 40 USD / Hourly
We are seeking an experienced Systems Administrator to support and troubleshoot production infrastructure in a hands-on environment. This role requires strong technical depth across virtualization, backup and disaster recovery, Windows Server, and core cloud, security, and networking technologies.Key Responsibilities<ul><li>Administer and troubleshoot Hyper-V</li><li>Support VMware ESXi environments</li><li>Manage Veeam backups, restores, and disaster recovery processes</li><li>Perform hands-on Windows Server administration</li><li>Support infrastructure across cloud, security, and networking</li><li>Troubleshoot production issues, outages, and performance problems</li><li>Assist with infrastructure upgrades, migrations, and improvements</li></ul>
2026-10-13T00:00:00Z

Systems Administrator

Sugar Land, TX
onsite
Permanent / Full Time
120000 - 140000 USD / Yearly
We are seeking a Systems Administrator with experience managing enterprise infrastructure and leading cloud migration initiatives. This role will support on-premises and cloud environments while helping drive modernization efforts across the organization.Responsibilities<ul><li>Administer Windows Server, Active Directory, Citrix, Exchange 2019, Exchange Online, file servers, and remote access solutions.</li><li>Support and maintain hybrid cloud environments.</li><li>Lead infrastructure and cloud migration projects from planning through implementation.</li><li>Develop and maintain disaster recovery and business continuity processes.</li><li>Perform system upgrades, patching, maintenance, and security remediation.</li><li>Monitor system performance, availability, and compliance.</li><li>Coordinate with vendors and internal IT teams to deliver infrastructure projects.</li><li>Provide occasional on-call support.</li></ul>
2026-10-05T00:00:00Z

Systems Administrator

Los Angeles, CA
onsite
Permanent / Full Time
110000 - 140000 USD / Yearly
Systems Administrator OverviewEstablished organization is seeking a Systems Administrator to support critical operational technology environments. This position is responsible for maintaining automation platforms, supporting system integrations, and improving the reliability and performance of business-critical operational systems. Key Responsibilities<ul><li>Administer, maintain, and enhance industrial automation and operational technology platforms.</li><li>Support system integrations between field devices, applications, databases, and reporting tools.</li><li>Configure, troubleshoot, and optimize control systems, instrumentation, and monitoring environments.</li><li>Develop reports, dashboards, and data solutions to support operational decision-making.</li><li>Assist with implementation, testing, upgrades, and maintenance of automation and control system technologies.</li><li>Partner with business stakeholders, vendors, and technical teams to deliver technology initiatives.</li><li>Maintain documentation, technical procedures, system configurations, and support materials.</li><li>Participate in project planning, vendor coordination, and ongoing operational improvements.</li></ul>
2026-10-28T00:00:00Z

148 results for Systems Security Administrator jobs