Top Senior Linux Jobs in San Diego, CA

Designs, builds, operates, and maintains scalable HPC platforms across public cloud and on-premises environments. The role enables scientific and analytical computing, optimizes workloads with researchers, and manages orchestration, scheduling, data access, automation, monitoring, and reproducibility. Responsibilities include HPC administration, infrastructure troubleshooting, cluster architecture, DevOps automation, and leading large-scale global infrastructure initiatives.

Design and engineer electrical systems for facility projects from concept through construction and commissioning. Prepare design calculations, cost estimates, contract plans, specifications, and schedules. Coordinate with clients and internal teams, resolve complex design issues, and ensure compliance with electrical codes and project requirements. Systems include power distribution, lighting, fire alarms, telecommunications, security, CCTV, access control, and communications. The role is primarily office-based with occasional fieldwork and regional travel.

Design, develop, and maintain scalable Python applications and cloud-native solutions. Architect microservices, containerized deployments (Docker/Kubernetes), optimize cloud infrastructure, build CI/CD pipelines, integrate messaging systems, ensure security and high code quality, and mentor junior developers. Generative AI/ML experience is a plus.

As a founding full-stack engineer, design, build, and deploy core backend services, oracle/watchtower infrastructure, and borrower-facing applications. Integrate Bitcoin transactions, PSBTs, and Discreet Log Contracts, manage SQL/NoSQL databases, contribute to architecture decisions, and wear multiple hats in a fast-paced, early-stage environment.

Engineer and sustain classified Windows and Apple endpoint infrastructure across NIPRNet, SIPRNet, and JWICS. Lead endpoint architecture, hardened imaging, patching, provisioning, VDI integration, RMF compliance, Tier III incident escalation, and formal test-before-deploy practices. Evaluate digital twins, AI, automation, and emerging technologies; produce proof-of-concept, market research, ROM, and governance documentation. Coordinate with cybersecurity and infrastructure teams while supporting change management and classified media procedures.

Lead hands-on development of scalable software, APIs, integrations, automations, and core product features. Architect systems, make technical decisions, ensure code quality, optimize performance and security, and collaborate across Product, Design, Data, and Business teams. Mentor developers, conduct code reviews, shape the technical roadmap, and improve engineering workflows, CI/CD, and architecture. The role also explores AI, automation, and API-first technologies in a fully remote startup environment.

Senior/Principal DevOps Engineers will deliver cloud and infrastructure projects for small, medium-sized, and enterprise clients. Responsibilities include DevOps project delivery, staff augmentation, fractional retainers, and solution consulting using AWS, GCP, Azure, infrastructure-as-code, Kubernetes, Helm, Docker, and scripting languages. Strong communication and project management skills are required. Roles are available full-time or part-time as 1099 contractor engagements for US-based workers.

Creates and finalizes 3D models, production drawings, bills of materials, and technical documentation for manufacturing. Revises drawings through engineering change processes, manages CAD data and BOMs in SAP, applies GD&T and drafting standards, and collaborates with engineers and production teams. The role requires strong mechanical aptitude, technical communication, organization, problem-solving, and attention to detail in a safety-focused manufacturing environment.

The Quality Assurance Tester II designs and executes test plans, leads regression testing, manages defects, and maintains automated UI and API test suites. The role collaborates with development and product teams in Agile ceremonies, analyzes test results, improves QA processes, and mentors junior testers. Responsibilities include front-end, back-end, database, load, and mobile application testing.

Develops, documents, and improves manufacturing processes for CNC machining, fabrication, and assembly operations. Responsibilities include tooling and fixture design, shop-floor troubleshooting, process optimization, quality-system compliance, new product introduction support, production training, and collaboration with quality, maintenance, programming, and production teams.