IT Systems Administrator Jobs in Tustin, CA

Elevate your career by tackling technical challenges that enhance business systems, drive operational efficiency, and streamline communication between stakeholders and technical teams. Lead initiative...

Lead the charge in enhancing user experience practices, driving UX governance, and scaling design operations for a vast Veterans Affairs digital portfolio. Collaborate with diverse teams to optimize p...

Join a team that's committed to empowering customers through innovative technical support and expertise. Collaborate with peers while analyzing issues and mentoring others to enhance skills in a dynam...

Transform our infrastructure by building secure, resilient systems in cloud and edge environments. Collaborate with cross-functional teams to ensure seamless deployment and operational excellence for...

Join a team that's shaping the future of First Responder Solutions through innovative software design and development. Contribute your expertise in multi-threaded distributed systems and enhance clien...

Join a dynamic team as a Senior DevOps Lead, architecting infrastructure and mentoring a diverse group of contractors. This hands-on role balances leadership with technical execution, impacting AWS-ba...

Analyze and solve technical issues in Treasury Management systems, providing expert support for clients and internal teams. Collaborate with Sales Officers for training and demos, ensuring client succ...

Advance sustainable energy solutions by ensuring effective integration of power systems and controls. Collaborate with design teams to deliver resilient operations for large power projects, ensuring c...

Unlock potential by driving the design and configuration of finance solutions in SAP S/4 HANA. Collaborate with Finance teams to optimize processes, ensure data integrity, and mentor users throughout...

Join a team that tackles complex IT challenges by designing and managing HPC and Linux systems. Collaborate to ensure optimal performance of multi-petabyte computing environments while driving innovat...

Optimize system integration by leveraging your expertise in configuring, validating, and troubleshooting across networked hardware. Collaborate with engineering teams to enhance system performance in...

Unlock potential by leading post-sales service delivery in a dynamic tech environment. Drive operational excellence and customer success through effective team leadership, process improvement, and str...

Accelerate progress at scaling robust infrastructure to support reliable, efficient mortgage services. Join a dynamic team committed to building tools that enhance engineering velocity and platform re...

Lead the charge in developing and managing Epic integrations with external systems, focusing on FHIR and HL7 APIs. Collaborate closely with stakeholders to ensure seamless data exchange and optimal in...

Transform the core of laboratory operations by leading complex software initiatives, mentoring engineers, and optimizing scalable systems to enhance efficiency and drive technical excellence across ou...

Drive the development of cloud-native applications in Microsoft Azure, collaborating across teams to deliver high-performance solutions while modernizing systems and executing Agile methodologies for...

Reimagine utility operations by translating business needs into integrated technology solutions, ensuring reliability and resiliency in electric and gas environments. Lead pre-sales engineering, archi...

Transform processes at the intersection of technology and security by developing and managing Identity and Access Management (IAM) solutions, ensuring system integrity and user access control across v...

Empower a global community of practitioners by driving engagement and insights across online platforms. Create initiatives to support and grow the NetBox ecosystem, enhancing connections between users...

Transform Salesforce B2B Commerce and Sales Cloud operations, ensuring seamless functionality and compliance. Collaborate with cross-functional teams to enhance system efficiency, troubleshoot issues...

Empower your career by providing IT partnership for enterprise systems supporting Commercial operations. Collaborate with business leaders to ensure systems are compliant, scalable, and aligned with s...

Empower your career with a role providing engineering support for cloud identity and endpoint services, focusing on ensuring compliance, secure access, and resolving complex technical issues for feder...

Manage and lead Oracle E-Business Suite technical initiatives, ensuring optimal ERP solutions across Finance and Supply Chain. Collaborate with cross-functional teams to drive enhancements, integratio...

Join our dynamic team as we safeguard classified communications, overseeing the integrity and security of COMSEC materials. Take ownership of critical security operations, develop efficient solutions...

Champion the architectural vision for cloud-native platforms, driving innovation and excellence across systems while mentoring engineering teams to elevate technical standards and operational resilien...