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...

Transform enterprise systems management by ensuring operations run smoothly, securely, and efficiently. This role involves maintaining infrastructure, automating tasks, and providing 24/7 support to b...

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...

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...

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...

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...

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...