Top Linux Jobs in San Diego, CA

Administers and secures enterprise network, server, virtualization, backup, application, and Active Directory infrastructure. Configures and troubleshoots systems, routers, switches, firewalls, applications, HL7 interfaces, and SSL/TLS certificates. Leads infrastructure changes, security mitigation, asset lifecycle management, and backup testing. Provides Level III support, technical guidance, staff training, and mentorship while maintaining compliance with HIPAA, NIST, and PCI DSS requirements.

Supports multimodal traffic engineering and public works projects through traffic operations and capacity analysis, safety studies, field investigations, traffic control plan review, and traffic calming initiatives. Prepares technical reports and recommendations, coordinates with stakeholders, supports public meetings, and provides after-hours emergency and special-event operations support. The role requires applying transportation standards and software while conducting regular fieldwork.

Leads global systems administration and IT infrastructure strategy, including Microsoft Entra ID, Microsoft 365, Windows and Linux servers, VDI, cloud environments, virtualization, capacity planning, compliance, disaster recovery, and M&A integrations. Manages a distributed systems administration team, oversees operational policies and service levels, supports regulatory compliance, develops technical procedures, and drives infrastructure projects, performance improvements, and business-aligned IT initiatives.

Designs, develops, installs, configures, tests, and supports process control and safety systems for energy, chemical, and sustainable energy clients. Leads portions of automation projects, contributes to capital projects and system modernizations, provides onsite troubleshooting and continuous improvement, and works with PLCs and third-party devices. The role also includes client-facing subject matter expertise, technical support, documentation, commissioning, and occasional business development. Travel to domestic client sites may be up to 25–50%.

Leads the design, development, integration, testing, deployment, and sustainment of secure software and automation for Federal Student Aid. Establishes DevSecOps, CI/CD, secure SDLC, Infrastructure as Code, automated testing, configuration management, and release practices. Coordinates multidisciplinary technical teams, integrates applications with APIs, cloud platforms, databases, and cybersecurity tools, drives vulnerability remediation, maintains technical documentation, and mentors engineering staff.

Monitors audio, video, broadcast systems, networks, and interactive applications from the Master Control Room. Performs quality checks, trouble-ticket resolution, first-level recovery, issue escalation, technical support, and coordination with project and engineering teams. Prepares operational reports and supports high-priority live events while maintaining service availability and compliance with established procedures.

Provides hands-on mechanical engineering support for Department of Defense systems across development, qualification, production, and sustainment. Conducts hardware and manufacturing investigations, resolves technical issues, reviews engineering documentation and drawings, prepares technical reports and procedures, supports quality activities, and coordinates cross-functional corrective actions. Works directly with engineers, technicians, manufacturing, quality, vendors, and customers in a manufacturing and technical environment.

Monitor, analyze, and optimize injection molding processes in a regulated medical device manufacturing environment. Investigate defects and deviations, conduct process audits and statistical analysis, perform root cause analysis, implement corrective actions, and support mold changes and equipment upgrades. Lead continuous improvement and Lean Manufacturing initiatives, maintain process documentation and validation protocols, and collaborate with tooling, maintenance, quality, and engineering teams.

Evaluates NASA mission proposals and Phase A concept studies as a subject matter expert. Conducts technical, management, and cost assessments involving flight systems, mission design and operations, spacecraft and instruments, systems engineering, communications, ground systems, and NASA mission leadership. Work is remote, part-time, and as needed.

Administers Oracle Fusion Cloud environments across production, test, development, and training instances. Manages configurations, security roles, access provisioning, workflows, integrations, reporting tools, audits, compliance controls, quarterly releases, environment migrations, and production support. Coordinates testing, incident resolution, vendor support, data validation, and root cause analysis while partnering with finance, audit, cybersecurity, architecture, and business stakeholders.