Top Senior Linux Jobs in San Diego, CA

Design, build, and maintain cloud-native full‑stack SaaS applications. Lead architecture and best practices, develop Angular front ends and C#/.NET microservices, optimize MS SQL Server data access, troubleshoot production incidents, and mentor engineers. Use AI-assisted coding tools and observability practices to ensure secure, performant, and maintainable systems.

Verify Brocade Fabric OS and hardware switching platforms via manual and automated testing. Develop Python automation, create and execute functional/integration/regression/performance tests, track defects in JIRA, troubleshoot Linux/Windows/VMware and networking/SAN issues, and report quality status to stakeholders. Role is fully on-site.

Serve as primary quality liaison to contract manufacturers, leading factory and product audits, RMA/warranty analysis, supplier performance, compliance (UL), BOM/PLM reviews, and continuous process improvements to ensure production meets specifications and supply continuity.

Build and maintain a full-stack AI-native CRM and Sales Co-Pilot: implement features, integrate ERPs, email/telephony, develop GraphQL APIs, deploy to Kubernetes, and integrate LLM-driven automation.

Lead design, build, and test of micro-turbine and turbo-generator systems. Perform mechanical design and analysis of static and rotating hardware, run ANSYS structural/rotor-dynamics/thermal analyses, use Siemens Teamcenter and NX for modeling and PLM management, drive NPI and project delivery from proposal through qualification and production support, collaborate with SMEs, prioritize resources, and provide technical guidance to management.

Full‑stack staff engineer to ship web products end-to-end, iterate on and expand a suite of sales/CRM-focused tools, define engineering culture and best practices, and hire/mentor future engineers. Must move fast in a small team, engage with users, and solve new problems creatively.

Develop, commission, operate, troubleshoot, and optimize a 4-Kelvin liquid-helium cryogenic plant and related subsystems for superconducting RF cavities. Perform thermal and structural analysis using multiphysics tools, design and procure cryogenic components, produce technical documentation and maintenance plans, mentor junior staff, and provide limited off-hours support for operations.

Build and own end-to-end features for a native iOS and Android consumer mobile app using Swift/SwiftUI and Kotlin/Jetpack Compose. Work in small teams to deliver features in six-week cycles, prioritize observability and production incident response, instrument product analytics (PostHog), and collaborate in-person in Denver.

Maintain and secure mission-critical Linux infrastructure across containerized, cloud, virtualized, and dataflow environments supporting DoD/IC missions. Administer Kubernetes/AWS, virtualization, storage, networking, PKI/TLS, patching, vulnerability remediation, ELK monitoring, and RF/transport components. Produce SSP documentation, troubleshoot complex multi-layer issues, and collaborate with engineering, operations, and security teams.

Hands-on process engineer responsible for sputter deposition tool sustainment, running experiments, yield improvement, training operators, authoring work instructions, participating in MRB/FRB root cause investigations, and supporting ISO/ESD/OSHA compliance in a clean-room manufacturing environment.