Top Senior Linux Jobs in San Diego, CA

Develops and tests PLC, HMI, and SCADA programs for oil and gas projects. Performs factory acceptance testing, commissioning, field service, troubleshooting, and integrated testing. Creates technical documentation and supports instrumentation, electrical, and control system design. Assists project managers with scheduling, budgets, scope tracking, and project execution. Requires extensive oil and gas automation experience, travel, commissioning expertise, and strong communication and problem-solving skills.

Provides advanced escalation support for complex customer network issues, including troubleshooting, implementation, infrastructure management, cloud migrations, automation, monitoring, site surveys, and process improvement. The role supports hybrid and cloud environments, performs remote and on-site services, collaborates on network design projects, and mentors engineers while maintaining strong customer communication and service quality.

Owns the architecture, implementation, administration, lifecycle, and support of residential and commercial voice technologies. Designs and manages VoIP, SIP, hosted PBX, unified communications, contact center, WebRTC, call-routing, and related network solutions. Leads complex implementations, troubleshooting, escalations, cutovers, vendor relationships, documentation, and service-delivery improvements while coaching technicians and supporting customer requirements.

Develop and enhance Java applications, web services, APIs, and legacy-system replacements for public and internal users. Build Java web applications using frameworks such as EJB and JSF, integrate PostgreSQL databases, implement authentication, support AWS CI/CD pipelines, and apply data security and accessibility standards. Analyze requirements, define application functionality, collaborate with technical teams, and evaluate technologies for continuous improvement. The role is fully remote with optional onsite work.

Designs, deploys, operates, and troubleshoots network architectures supporting US BICES-X coalition integration and intelligence-sharing systems. Responsibilities include network development, testing, upgrades, documentation, firewall and routing configuration, virtualization, tunnel management, and operational issue resolution. The role provides technical guidance, supports engineering and testing requirements, collaborates with stakeholders, and manages a small team of network engineers. Work involves Cisco, Juniper, F5, NSX, data center networking, COMSEC, and classified defense environments.

Develops and owns real-time embedded firmware for single-phase UPS and power conversion systems. Responsibilities include C/C++ firmware, digital control, DSP/MCU platforms, PWM, ADC acquisition, protection algorithms, synchronization, multi-processor communication, hardware integration, testing, troubleshooting, CI/CD, documentation, and cybersecurity. Provides technical guidance and mentorship while supporting product development, sustaining engineering, qualification, and production activities.

Designs and optimizes aerospace and automotive products for manufacturability and assembly. Creates, reviews, and controls CAD models, drawings, PMI, BOMs, DFMEAs, and engineering specifications within PLM systems. Applies GD&T and tolerance analysis, resolves production NCRs, supports engineering changes, prototypes, production builds, cost reduction, and process improvements. Collaborates with engineering, manufacturing, quality, technicians, and managers while maintaining documentation standards and training team members.

Leads AI-enabled requirements and quality engineering initiatives within Nationwide’s Developer Experience and Platform organization. The role develops reusable automation patterns for web, mainframe, and desktop applications; improves software delivery, testing, security, and CI/CD practices; provides technical direction; mentors engineers; and coordinates medium-to-large projects across teams. The position is hybrid in Columbus, Ohio, with potential on-call responsibilities.

Designs, integrates, tests, and validates electro-optic mechanical stabilized systems. Responsibilities include requirements decomposition and traceability, performance analysis, trade studies, test planning, system integration, troubleshooting, configuration documentation, CONOPS development, and presenting results at design reviews. The role collaborates with hardware, software, production, program, and customer teams and supports testing at multiple sites.

Manages and modernizes the company’s IT infrastructure, including Azure, Microsoft 365, servers, networking, storage, backups, endpoints, and cloud services. Designs, implements, troubleshoots, and secures infrastructure solutions; leads modernization, automation, AI tool adoption, and cybersecurity initiatives. Develops standards and documentation, manages vendors, mentors junior staff, and partners with technical and business stakeholders to deliver reliable, scalable technology.