IT Systems Administrator Jobs in Celina, TX

Elevate server performance by designing, implementing, and maintaining secure, enterprise-level server infrastructure, leveraging virtualization, automation tools, and best practices for efficiency an...

Join a team that's dedicated to maintaining critical IT infrastructure. As a Systems Administrator, you will support hardware and software operations, manage network systems, and enhance technology se...

Transform the Enterprise Server Environment and support IT systems as a key escalation point for technical issues, ensuring seamless operation and enhanced service delivery within an innovative team d...

Take ownership of DLA's Okta environments, ensuring stable operation through planning, development, and optimization. Engage in end user support, conduct training, and guide on technology direction to...

Optimize the operation and configuration of complex Okta environments, ensuring stability and support while leading a team of system administrators and enhancing end-user technology experiences...

Empower operations as a System Administrator for MODES III, managing AWS and on-prem cloud systems. Ensure system security, availability, and performance while collaborating with DevOps teams to suppo...

Deliver expert administration and management of ClearPath OS2200 systems, ensuring optimal performance and security. Collaborate with teams to enhance services, support integration, and drive continuo...

Shape the future of enterprise network operations, security, and infrastructure while managing and sustaining an integrated IT environment with a focus on routing, switching, and network security tech...

Provide architectural expertise to enhance internal IT systems and automate processes. Drive incident resolution and support Tier 2/3 applications while collaborating with stakeholders to maintain sys...

Join a high-impact Agile team to enhance mission-critical systems in AWS, ensuring optimal performance and reliability while driving operational excellence across diverse cloud infrastructure and appl...

Join a dynamic team as a Network Engineer to optimize and secure network infrastructure, troubleshoot complex issues, and enhance client collaboration in a fully remote environment...

Lead mission-critical systems support as a TAK Operations Specialist. Ensure seamless deployments, maintain system reliability, and enhance operational decision-making through expert administration an...

Engage in thorough assessments of financial systems to ensure compliance with federal regulations. Utilize expert knowledge in systems controls and auditing practices to protect sensitive information...

Unlock potential by designing and managing VMware vSphere environments while implementing disaster recovery solutions. Collaborate in cross-functional teams to enhance capacity and optimize performanc...

Contribute to ITOM excellence by managing ServiceNow platforms, ensuring data integrity, and optimizing integrations in compliance with federal standards. Collaborate with teams to enhance system perf...

Transform mission-critical infrastructure by ensuring robust systems administration, leading virtualization operations, and delivering high availability across cloud and on-premises environments to su...

Lead and inspire a high-performing team focused on securing cloud infrastructure and modern application delivery. Drive enhancements in security architecture while advancing team skills in a collabora...

Champion our systems by optimizing the Power Platform and providing exceptional support across complex environments. Collaborate with teams to enhance functionality, ensure compliance, and drive effic...

Drive enterprise IT systems engineering to support a fast-growing global company. Collaborate with cross-functional teams to deliver technology solutions and ensure security compliance while maintaini...

Join a team that ensures secure, compliant IT operations for mission-critical services. As a System Administrator, you'll manage server environments, support cybersecurity protocols, and collaborate w...

Unlock potential by driving effective management and maintenance of systems and applications. This role requires a technical leader to innovate and resolve issues in a fast-paced environment, supporti...

Empower the future of technology infrastructure by creating effective management plans, leading system operations, and ensuring optimal performance of applications and hardware in a dynamic, supportiv...

Partner with us to lead IT systems and project management in a dynamic event environment. Transform technical execution into strategic planning, ensuring successful event deployments and operational e...

Join a team that's dedicated to enhancing financial systems through rigorous auditing and controls assessment. Collaborate on federal requirements while providing actionable insights for improved comp...

Join a team that's dedicated to maintaining and enhancing Linux/Unix environments through expertise in administration, troubleshooting, and proactive monitoring. Support critical operations while deve...