IT Systems Administrator Jobs in Tustin, CA

Unlock potential by providing expertise in space vehicle systems engineering to diverse agencies, focusing on next-generation technology and problem-solving for national defense and commercial stakeho...

Unlock potential by designing and proposing tailored infrastructure solutions that align with customer business objectives, partnering with sales teams and vendors to enhance technology adoption acros...

Lead impactful training initiatives designed to empower customers globally. Utilize innovative methods and foster strong relationships to enhance learning experiences and drive success across diverse...

Partner with us to enhance Marine Corps mission readiness by providing expert Command and Control (C2) system support, ensuring seamless operations and strategic guidance on cutting-edge communication...

Unlock your potential as you design and execute advanced AI security testing strategies. Partner with engineering teams to identify and mitigate vulnerabilities across diverse infrastructures, includi...

Facilitate Agile transformation by leading Scrum teams in delivering secure, efficient DevSecOps solutions, aligning development, security, and operations with mission objectives, and promoting collab...

Join a team that's transforming critical care delivery through innovative telemedicine solutions, providing high-quality patient management and collaborating closely with healthcare professionals to e...

Unlock potential by leading cloud engineering initiatives to design, optimize, and implement innovative solutions across cloud platforms while mentoring teams and influencing strategic direction for c...

Unlock potential by leading automation processes to enhance manufacturing efficiency. Collaborate with diverse teams to troubleshoot systems, drive improvements, and ensure compliance in a fast-paced...

Lead mission critical operations and provide commissioning oversight for data center projects, ensuring efficiency and quality standards are met while mentoring teams and fostering internal expertise...

Unlock potential by managing vulnerability assessments and compliance activities across various frameworks. Collaborate with technical teams to enhance cloud security, ensure accurate compliance docum...

Help us drive client success by managing relationships, resolving issues, and identifying growth opportunities. Leverage your expertise in healthcare to enhance customer satisfaction and ensure effect...

Grow your career with a dynamic role focused on hands-on installations and customer service for transit systems. Join a passionate team, manage projects from start to finish, and contribute to making...

Take ownership of end-to-end system installations, ensuring high-quality service delivery and customer satisfaction while managing teams and troubleshooting low-voltage systems in public transit setti...

Lead the charge in aviation partnerships by building key relationships, delivering tailored presentations, and driving business development. Utilize your expertise to enhance customer satisfaction thr...

Lead the charge in maximizing equipment reliability and performance by overseeing maintenance operations, implementing cost reduction strategies, and ensuring compliance with EHS standards to achieve...

Drive effective subcontract management through compliance, negotiation, and performance monitoring, ensuring alignment with organizational goals while managing complex contract types and fostering cri...

Solve complex architectural challenges by establishing a secure, scalable AWS cloud environment. Lead SaaS product design, ensuring compliance and innovation while mentoring teams in a collaborative...

Drive digital strategy and innovation in complex A/E/C projects, leveraging BIM and data management from proposal to delivery. Lead teams in integrating technology solutions, ensuring best practices a...

Help us drive innovation in defense acquisitions, supporting critical space operations through expert program management and strategic oversight for rapid capability delivery to the U.S. Space Forces...

Join a team that's building cutting-edge infrastructure for SAP agents. Leverage your expertise in ABAP and S/4HANA to enhance AI capabilities, improve agent performance, and debug systems, all while...

Elevate your career by architecting innovative IT solutions that drive business success. Collaborate with clients and sales teams to deliver scalable, impactful projects that enhance customer satisfac...

Join a team that's at the forefront of enhancing productivity and collaboration through Microsoft 365 solutions. You'll leverage your technical expertise and leadership skills to drive impactful initi...

Lead the charge in managing multi-disciplinary IT contracts, serving as the main contact for client communications, project execution, and risk management across diverse task orders in infrastructure...

Take ownership of quality assurance processes, lead testing strategies, and deliver innovative solutions. Collaborate with clients and teams to ensure effective testing of technology solutions across...