Systems Administrator Jobs in Irvine, CA

Drive operational excellence in a hands-on role, overseeing AWS-based cloud systems, Microsoft 365 admin, and Jira management, ensuring sustainable technology performance for a high-trust healthcare S...

Join a team that's shaping the future of customer engagement through innovative backend solutions, collaborating across departments to deliver impactful marketing communications and real-time messagin...

Support executive clients with exceptional desktop troubleshooting and IT services. This hands-on role requires collaboration, communication, and technical skills in a fast-paced environment, focused...

Champion innovative security solutions by automating incident response, enhancing detection platforms, and collaborating with teams to protect critical infrastructures. Drive proactive threat hunting...

Engage with cross-functional teams to develop, test, and implement engineering applications that drive productivity, compliance, and cost-effectiveness across the organization...

Shape the future of our AI Advisory Services by managing diverse projects, ensuring timely delivery, and fostering client relationships. Your leadership will drive operational excellence and financial...

Architect cutting-edge military satellite communications systems that integrate seamlessly with user segments to ensure mission success. Collaborate with cross-functional teams to deliver innovative s...

Transform IT infrastructure management by leading systems planning, execution, and vendor relations while ensuring operational excellence and system stability to meet evolving customer needs...

Transform the integrity of financial systems by leading Segregation of Duties (SOD) governance and risk management. Collaborate with IT and business leaders to ensure robust access controls and enhanc...

Architect robust IT security strategies, manage teams, and ensure compliance while driving infrastructure performance and risk reduction initiatives for enterprise endpoints and data protection...

Join us to provide technical expertise in systems engineering, tackling complex assignments to innovate technologies and enhance products. Your leadership will drive significant business impact and gu...

Join us to shape the future of cloud infrastructure by building and owning the observability pipeline for our datacenter hardware. This role requires refining raw telemetry into actionable insights cr...

Engineer innovative solutions for laboratory information systems, ensuring efficient operations and regulatory compliance. Collaborate with clinical teams to enhance data integrity and streamline work...

Advance financial operations by overseeing accounting, reporting, and compliance processes while leading a team focused on continuous improvement and accurate financial reporting. Drive insights for s...

Transform our IAM ecosystem as you lead in-house management and optimize operations. Drive security, compliance, and user experience by implementing robust identity governance and enhancing cloud and...

Join a team that's pivotal in managing technical aspects of large-scale litigation support projects. Drive innovative solutions, support complex case requirements, and lead teams to deliver high-quali...

Join a team that engineers cutting-edge security operations tools and strategies. You will optimize security functions across diverse environments, enhancing efficiency and threat neutralization throu...

Deliver critical support for Linux systems and middleware platforms, ensuring operational stability and security in SaaS environments. Collaborate across teams to troubleshoot and maintain seamless ap...

Elevate your career by driving innovation and enhancing uptime for critical platforms. Collaborate, monitor, and design robust architectures while implementing best practices in a dynamic team environ...

Join a team that's dedicated to shaping innovative network solutions and delivering outstanding external events. Leverage your expertise in telecom and OSS governance to drive project success and ment...

Pioneer modern network security by leading a dedicated team to create automated, identity-aware policies in a cloud-native fintech environment, enhancing protection of sensitive financial data across...

Reimagine the future of technology as you lead architectural designs for complex, scalable systems. This role focuses on establishing standards and ensuring compliance for enterprise technologies in a...

Join us to provide expert administration and engineering for Linux systems in mission-critical environments while supporting container orchestration and automation processes that enhance operational e...

Accelerate technical excellence by designing and maintaining secure endpoint configurations in Windows and macOS environments, ensuring robust support for a federal agency's infrastructure and cyberse...

Advance IT asset management by overseeing inventory, provisioning, and disposal processes. Collaborate with teams to ensure efficiency in IT operations while providing exemplary service to employees a...