systems-administration jobs in San Diego

Experienced System Administrator to support and maintain DoD technology infrastructure, systems, and networks in a Department of Defense environment. The role involves monitoring performance, troubleshooting complex issues, deploying and sustaining AI/ML applications and their computing environments, maintaining DoD cybersecurity controls, and serving as a technical liaison between Greystones, Navy/DoD customers, internal teams, and OEMs.…See more Requires 10+ years of systems/network/IT administration or systems engineering experience, a Bachelor's degree in IT/Computer Science/Engineering (or equivalent military experience), active Secret clearance, and understanding of AI/ML concepts and platforms.

As Manager of the Business Systems team, you'll lead systems analysts and administrators while managing strategic projects involving CRM, ERP, reporting, and internal platforms. You'll drive complex implementations, data migrations, integrations, and upgrades while managing project plans, timelines, budgets, vendor relationships, and cross-functional stakeholders.…See more Success requires 5+ years of management experience focused on business systems implementations and 5+ years of systems administration or analyst experience, with expertise in platforms like Salesforce, Zuora, or HubSpot and project methodologies including Agile and Waterfall.

The Windows Platform Engineer will administer, secure, and maintain enterprise Windows Server environments (2016, 2019, 2022) across a large-scale Department of Defense network. Responsibilities include patching, vulnerability remediation, STIG compliance, IAVA remediation, and full infrastructure lifecycle management (installation, configuration, monitoring, upgrades, decommissioning).…See more The role requires 2–5 years of Windows Server and enterprise systems administration experience, an active Secret clearance, and current Security+ certification.

Systems Administrator supporting Department of Defense infrastructure, networks, and emerging technologies in a DoD environment. Responsibilities include monitoring system performance, maintaining DoD cybersecurity controls, deploying and troubleshooting AI/ML applications and compute environments, serving as technical liaison between Greystones, Navy/DoD customers, and OEMs, and supporting Navy systems integration and sustainment.…See more Requires 10+ years of systems/network/IT administration experience, Bachelor's degree in IT/CS/Engineering (or equivalent military service), DoD customer support background, and active Secret clearance.

Lead a Business Systems team managing strategic projects across CRM, ERP, HRIS, and reporting platforms. Oversee complex system implementations, data migrations, integrations, and upgrades while ensuring system interoperability, data integrity, and security.…See more Manage cross-functional project teams, vendor partnerships, and stakeholder communication to deliver projects on time and within budget. Requires 5+ years of management experience in systems development and 5+ years of systems administration or analyst experience.

Senior Systems Engineer responsible for administration and operations of a global cloud SaaS infrastructure serving millions of users. The role requires expert-level Linux and systems administration skills, with hands-on responsibility for availability, performance monitoring, and troubleshooting across web, database, and network layers in production environments.…See more Must have SRE/DevOps experience managing large-scale server infrastructure, proficiency with configuration management tools (Ansible, Puppet, Chef), monitoring platforms (Nagios, Splunk), and scripting languages (Python, Perl, or JavaScript). Knowledge of databases (MySQL, PostgreSQL, Oracle), load balancing (F5, NGINX), and networking technologies is essential.

Prescient Edge seeks a Systems Administrator III with 7+ years of experience to support a federal government client. The role requires a master's degree in engineering, computer science, or information systems and an active TS/SCI security clearance.…See more The position is based in San Diego, CA, with remote work and travel expected.

Senior IT Specialist supporting USSOCOM enterprise operations, providing Tier 1–2 network and systems administration across 70,000+ global users. Responsibilities include installation, configuration, troubleshooting, and lifecycle management of LAN/WAN routing, switching, and systems infrastructure (routers, switches, encryption devices, PCs, phones, VTCs).…See more Must demonstrate strong technical troubleshooting and diagnostic skills, comprehensive knowledge of government hardware/software/network components, and ability to prepare technical implementation plans and coordinate with networking and systems teams.

This Systems Engineer role involves designing, integrating, implementing, and testing complex systems and systems-of-systems architectures in support of defense and tactical command-and-control missions. The candidate will define technical requirements, perform data analysis across multiple sources, develop technical documentation, and support cross-functional engineering teams.…See more The position requires 5–8 years of systems engineering or technical integration experience, with strong analytical and problem-solving skills, and an active Secret clearance.

Lead IT operations and infrastructure for a mid-sized organization, managing a small IT team while maintaining hands-on involvement in day-to-day support. Oversee Microsoft 365, Azure, Entra ID, Intune, and Fortinet firewalls; administer LAN/WAN/VPN networks; ensure security, compliance, and business continuity; and partner with leadership on technology strategy and vendor management.…See more Requires 5+ years in systems and network administration in a Microsoft environment, 2+ years in a supervisory role, and expertise in endpoint management, disaster recovery, and troubleshooting.

Lead all IT operations for a professional sports organization, including infrastructure, networking, cybersecurity, cloud applications, end-user support, and business systems across headquarters, training facilities, and matchday environments. Manage IT staff and external service providers, develop technology budgets, negotiate vendor relationships, and serve as the escalation point for complex technical issues.…See more Combine strategic planning with hands-on problem-solving to improve operational efficiency, employee experience, and organizational scalability in a fast-paced professional sports environment.

As an IT Support Engineer I, you will provide technical support and implement solutions for computer hardware, operating systems, and enterprise applications in a high-availability environment. You will troubleshoot and resolve IT infrastructure issues, manage local technical projects, and maintain corporate networking and computing systems.…See more The role requires hands-on experience with Windows Server technologies (AD, DFS, Print Services, SCCM), networking protocols (DNS, DHCP, TCP/IP, SSL), and multi-user environments. You will work across PC repair, deployment, network engineering, and systems administration while interacting with management and staff to improve IT solutions.

Lead network design and management for military C4I and C4ISR systems, with responsibility for complex LAN/WAN infrastructure using Cisco products (switches, routers, firewalls). Troubleshoot network hardware and software issues, design secure operational networks, and collaborate with U.S.…See more Government network and cyber engineers. Requires 7–10 years of network engineering experience, proficiency in Cisco, TCP/IP, MPLS, OSPF, EIGRP, DMVPN/mGRE, and active Secret clearance; up to 25% OCONUS travel for integration and testing.

As an IT Support Engineer I, you will implement technical solutions and provide high-quality support for computer hardware, operating systems, and enterprise application software across Amazon's global operations. You will troubleshoot and resolve network, infrastructure, and computing system issues in multi-user, high-availability environments, ensuring production availability.…See more Responsibilities include network engineering, systems administration, managing technical projects, and identifying root causes of operational issues. The role requires hands-on experience with Windows Server, networking protocols, PC repair and deployment, and corporate IT service delivery.