Top Senior Linux Jobs in San Diego, CA

Design, develop, and maintain PLC and SCADA systems for facility operations. Implement Siemens PLC programs, configure AVEVA HMI applications, deploy automation hardware, support commissioning and troubleshooting, document code and configurations, partner with operations and vendors, and apply AI-driven process improvements to increase reliability and performance.

Lead hiring, training, and startup of Dry Etch process and equipment engineering teams for a new DRAM high-volume fab. Drive process qualification, capacity planning, cross-functional alignment, technical support, and succession planning while setting performance goals and partnering with global manufacturing and suppliers.

Leads system-level validation, integration, and joint qualification of enterprise and datacenter NVMe SSDs. Responsibilities include developing validation strategies and test plans, performing system bring-up and debugging across hardware, firmware, drivers, operating systems, and platforms, conducting failure analysis, supporting customer issue reproduction, and improving automated Python-based testing and AI-enabled validation workflows. The role also mentors engineers and coordinates qualification activities across firmware, hardware, manufacturing, product engineering, and customer engineering teams.

Lead frontend technical strategy for Affirm’s checkout decision orchestration systems. Design and architect scalable web applications, guide major technical initiatives, improve reliability and operational processes, establish engineering quality standards, collaborate with product, design, and analytics, and mentor engineers. The role focuses on building fast, clear, and reliable checkout experiences using modern declarative UI frameworks.

Administer and support Linux infrastructure, physical servers, virtual machines, OpenStack private cloud, and big-data platforms. Monitor outages, troubleshoot Tier 3 issues, assist cloud tenants, deploy applications, integrate hardware, implement cybersecurity remediations, maintain documentation, and plan infrastructure expansion. The role requires on-site SCIF work, active TS/SCI clearance, extensive RHEL administration experience, virtualization and cloud expertise, endpoint security tools, and GitLab experience.

Lead architecture and implementation of reliability improvements across CrowdStrike's cloud-native platform. Build shared libraries and services, drive observability and SLO practices, perform performance and cost optimization, run resilience engineering and chaos experiments, automate infrastructure-as-code, mentor engineers, and embed with product teams to deliver scalable, highly reliable distributed systems at organizational scale.

Leads architecture and scaling of Block’s finance technology stack across Oracle Fusion, accounting, tax, treasury, procurement, and FP&A. Designs financial data models, builds SQL/PL/SQL and REST/SOAP integrations, automates workflows, and translates accounting requirements into scalable technical solutions. Partners with finance, product, data engineering, and integration teams while applying AI-assisted development to improve delivery speed and financial operations.

Design, implement, maintain, test, monitor, and debug Cloudflare’s distributed Load Balancing systems. Collaborate with security, network engineering, SRE, and product teams to build scalable, fault-tolerant solutions. Participate throughout the software development lifecycle, review code, mentor teammates, support production operations, and improve system reliability using Go, Rust, TypeScript, databases, containers, and orchestration technologies.

Serves as the principal architect for an AI-native QA software development lifecycle. Designs agentic QA platforms, technical roadmaps, governance, evaluation benchmarks, and human-in-the-loop frameworks. Solves complex architectural, memory, and distributed-systems challenges using multiple programming languages. Leads Playwright automation, Datadog observability, SDK validation across Unreal Engine and Unity, code reviews, architecture reviews, technical collaboration, and mentorship.

Owns quality for solid rocket motor propellant manufacturing, including AP milling, mixing, casting, and curing. Develops process controls, validation plans, FMEAs, SPC, inspection criteria, batch record reviews, and corrective actions. Leads optimization and expansion of radiographic NDT capabilities, including equipment qualification and production integration. Supports SRM quality, audits, AS9100 compliance, safety-critical manufacturing, and MRB activities while partnering with engineering, manufacturing, EHS, and supply chain teams.

Lead integrations and AI automation for Finance systems, designing Workato workflows, AI-powered agents, copilots, and scalable integrations. Partner with Finance, IT, Security, Legal, and Audit teams to modernize accounting, procurement, billing, and revenue workflows. Own architecture, governance, operational reliability, SOX audit support, reusable frameworks, training, and success metrics while ensuring compliant handling of sensitive data.

Build and support scalable production web applications powering a large ticket marketplace. Responsibilities include developing frontend and backend solutions, designing experiments and algorithms, collaborating with cross-functional teams, maintaining software development practices, monitoring application performance, deploying production changes, and mentoring engineers through pairing, code reviews, and technical presentations.