IT Systems Administrator Jobs in Tustin, CA

Drive successful IT project delivery by leading cross-functional teams, managing budgets, and maintaining alignment with client objectives. Take ownership of project phases, ensuring timely communicat...

Lead the charge in optimizing and managing the Atlassian Cloud platform to enhance team workflows, drive automation, and enable seamless integrations, ensuring that the organization operates efficient...

Reimagine cloud infrastructure by leading a talented team in complex technical troubleshooting and lifecycle management for a high-performance server fleet, ensuring optimal uptime and performance acr...

Lead the charge in designing cutting-edge conversational AI solutions. Collaborate with cross-functional teams, optimize integrations with backend systems, and implement NLU strategies to enhance user...

Innovate enterprise applications using OutSystems, driving scalable solutions, collaborating with cross-functional teams, participating in Agile processes, and enhancing both user experience and code...

Champion secure DevSecOps practices and manage scalable infrastructure to support healthcare and defense initiatives. Leverage technical expertise in a fast-paced environment that demands proactive pr...

Champion secure digital access by designing and maintaining IAM solutions that empower organizational efficiency while ensuring compliance with industry standards and best security practices in a hybr...

Lead the charge in architecture design and integration of enterprise systems while delivering custom software solutions and guiding a team to enhance NIAID's clinical information capabilities and supp...

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...

Support critical system security operations, ensuring compliance and effective monitoring of classified information systems. Engage in incident response, user support, and continuous vulnerability man...

Analyze and enhance system reliability through data integration and modeling, collaborating with cross-functional teams to ensure optimal performance of Navy systems and supporting mission-critical as...

Join us in transforming critical infrastructure! Lead the modernization of telecom systems, ensuring zero downtime while adhering to safety and compliance standards in a fast-paced, regulated environm...

Deliver comprehensive site acquisition expertise for innovative 5G projects, focusing on regulatory compliance, budget management, and vendor performance to drive successful network expansion across m...

Join a dynamic logistics team to ensure seamless material deliveries, utilizing advanced systems and collaborating with multiple stakeholders to meet critical deadlines and execute delivery requiremen...

Unlock potential by leading complex enterprise system transformations, guiding teams, and building strong client relationships to deliver high-quality BPMN process architectures for large-scale digita...

Drive the evolution of backend systems for a leading cloud platform, enhancing API design and technical integrity while navigating a mature PHP architecture. Collaborate with engineering peers to opti...

Lead the charge in secure identity management by developing a high-performing IAM team and overseeing critical identity services while collaborating on enterprise security initiatives and driving oper...

Shape secure systems for critical Defense and Intelligence missions by applying risk management frameworks and ensuring compliance with DoD and NIST standards. Work collaboratively with teams to maint...

Advance progress at the forefront of national security applications by developing, deploying, and supporting mission-critical software solutions in an Agile environment while leveraging modern cloud a...

Drive the design and implementation of an integrated intelligence layer, enhancing operations through AI and strategic platform development across engineering, manufacturing, and business functions...

Elevate IT service delivery through innovation and automation. In this senior role, you will resolve complex escalations, mentor analysts, and collaborate cross-functionally to enhance efficiencies an...

Drive our new IT implementation strategy by managing integrations and optimizing processes for dental practices, ensuring quality and efficiency as you collaborate cross-functionally and develop suppo...

Accelerate progress at the intersection of software engineering and data science. Leverage your backend expertise, working closely with data scientists on robust API development and production systems...

Drive organizational cybersecurity by enhancing security governance, managing risks, and ensuring compliance. Collaborate with internal teams and external partners to elevate security practices and de...

Join a team that's shaping the future of data center infrastructure. Drive innovative designs and collaborate cross-functionally to deliver reliable and scalable network solutions that support global...