IT Systems Administrator Jobs in San Antonio, TX

Grow your career with a dynamic team that ensures IT infrastructure stability, security, and performance. Manage systems and networks while collaborating with cross-functional teams to tackle technica...

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

Manage and maintain robust Linux infrastructure, ensuring optimal performance and security. Collaborate with teams for system integration, automation, and scalability enhancements while providing high...

Join our team to manage and optimize Linux/Unix systems, ensuring security and efficiency across our infrastructure. Collaborate with diverse teams to tackle challenges, enhance performance, and maint...

Join a team that's focused on ensuring network reliability and efficiency. As a Network Systems Administrator, you'll design, implement, and maintain systems while tackling technical challenges and op...

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...

Lead the charge in managing and maintaining complex server environments, ensuring optimal performance and security within classified networks. Collaborate with a skilled team to integrate and deploy a...

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...

Join a dynamic team as you manage Red Hat Linux systems while providing exceptional service and support. Collaborate on advanced projects, troubleshoot critical systems, and contribute to a secure and...

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...

Join our team to optimize and maintain enterprise-level Linux systems, focusing on Red Hat and cloud infrastructures. Collaborate with experts to enhance performance and security while supporting nati...

Unlock your potential as a Systems Administrator, providing critical support and administration for network and communication systems while optimizing operations and enhancing user access for mission...

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 coordinating change processes in Network/Cyberspace Operations. Engage with stakeholders to manage incidents and ensure compliance while documenting necessary changes to enhance pr...

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...

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...