Top Linux Jobs in San Diego, CA

Implement, monitor, troubleshoot, maintain, and optimize enterprise network infrastructure, including routers, switches, firewalls, wireless systems, WAN circuits, and security technologies. Support deployments, upgrades, migrations, disaster recovery, infrastructure projects, documentation, asset records, vendor coordination, and regulatory compliance. Provide technical escalations, analyze network performance, recommend reliability and security improvements, and respond to after-hours incidents.

Develops and improves fire protection products by investigating reliability issues, maintaining regulatory certifications, coordinating testing with approval agencies, and implementing corrective actions. Leads engineering projects, manages risks and documentation, creates drawings using GD&T, evaluates manufacturing data, develops test methods, and coordinates with suppliers, manufacturing, customers, and laboratories. Operates inspection and testing equipment while ensuring product compliance, manufacturability, performance, and successful engineering change implementation.

Own and operate low-latency network infrastructure for trading systems, including colocation connectivity, exchange feeds, L2/L3 topology, BGP and OSPF routing, PTP synchronization, firewall policies, automation, packet analysis, documentation, and incident response. The role involves designing infrastructure from scratch, managing vendors, building Python tooling, and participating in on-call support within a small network engineering team.

Owns, troubleshoots, and improves plant automation, PLC, HMI, electrical, instrumentation, networking, and industrial control systems for beverage production and canning operations. Leads controls projects, equipment upgrades, commissioning, documentation, preventive maintenance, cybersecurity practices, and production-data integration. Partners with maintenance, operations, OEMs, and contractors to improve safety, reliability, throughput, OEE, changeovers, and energy efficiency. Provides plant-floor support, technician training, root-cause analysis, and occasional off-hour assistance.

Lead design, development, testing, and maintenance of scalable full‑stack software. Contribute to architecture, code reviews, CI/CD, operational excellence, and mentor engineers while ensuring security, performance, and compliance.

Develop and test next-generation LCM-based LiDAR systems and transmitters. Build test stations, fixtures, calibration systems, and Python automation tools; execute system-level characterization campaigns; debug electronics, optics, embedded processing, and control algorithms; contribute to design reviews and system optimization; and clearly communicate performance results across hardware, optics, firmware, and software teams.

Designs and models electrical systems for commercial, industrial, correctional, and parks projects. Responsibilities include power distribution, lighting, fire alarm, access control, and security system design; preparing construction drawings, one-line diagrams, wiring diagrams, specifications, reports, and cost estimates; performing photometric modeling; conducting site visits and field measurements; and supporting other departments.

Designs and simulates FPGA/modem systems using Ultrascale+ and Versal platforms. Develops VHDL and SystemVerilog designs, works with high-speed SerDes and communication interfaces, and uses scripting languages for development and automation. The role requires extensive FPGA experience and offers contract-to-permanent potential. Software-defined radio/modem, PetaLinux, RF design, encryption, and active government clearance experience are preferred.

Performs OTDR testing and non-destructive inspections on fiber optic cables and mechanical components. Identifies faults, interprets schematics, analyzes test data, troubleshoots network issues, conducts quality inspections, maintains testing and calibration records, and follows ASME standards and safety protocols. Uses hand tools and equipment for assembly and repair while supporting reliable, high-quality communication infrastructure.

Maintain and extend production Python applications, build internal tools and reports, and own the Power BI reporting estate. Support SQL Server reporting databases, desktop estimating and pricing tools, and scheduled system automations. Gather requirements from business departments, follow version control and code review standards, document systems, and gradually assume independent ownership under senior technical guidance.