Top Senior Linux Jobs in San Diego, CA

Administers multi-user Linux and virtualized server environments, including Oracle Sun and VMware hosts. Responsibilities include user and storage administration, patching, NFS, backups and restores, disaster recovery, access control, performance monitoring, application support, troubleshooting, root-cause analysis, and maintaining operational documentation. The role requires an active TS/SCI clearance and DOD 8570-compliant IAT Level II certification.

Develop and sustain cloud software across the full lifecycle, including requirements, design, development, integration, testing, deployment, validation, enhancement, and maintenance. Diagnose technical issues and implement improvements meeting operational, performance, security, and mission requirements. The role emphasizes AWS cloud architectures, serverless applications, infrastructure as code, CI/CD, monitoring, and scalable deployments. An active TS/SCI clearance with a current polygraph is required, along with substantial software development experience in Java, C, C++, UNIX/Linux, software integration, and testing.

Maintain and improve AWS cloud applications and infrastructure using Terraform, EKS, ECS, Lambda, and CI/CD pipelines. Manage Kubernetes environments, deployments, monitoring, vulnerability remediation, incident response, autoscaling, failover, and disaster recovery. Collaborate with development, operations, and security teams to ensure scalable, secure, fault-tolerant production systems. Participate in 24/7 on-call rotations, automate operational tasks, and maintain recovery runbooks and compliance with RTO/RPO requirements.

Lead administration, optimization, and reliability of enterprise Windows Server infrastructure. Manage Active Directory, Group Policy, authentication, identity services, patching, vulnerability remediation, security hardening, and compliance. Resolve complex Level 3 incidents, perform root cause analysis, and develop PowerShell automation. Support hybrid AWS and Microsoft Azure environments, troubleshoot infrastructure services, mentor junior engineers, and drive modernization and standardization initiatives.

Leads the design, development, testing, operation, and maintenance of full-stack Money Movement software supporting ACH, A2A, Bill Pay, and payment networks. Responsibilities include building production-ready code, developing scalable distributed systems, conducting code reviews, improving reliability and security, analyzing failures, and following compliance and DevOps standards. The role requires collaboration across teams, agile delivery, and ownership of secure, reliable customer experiences.

Designs, develops, and modernizes large-scale domestic and international payment platforms supporting SWIFT, CHIPS, Fedwire, and ISO 20022. Responsibilities include cloud-native architecture, distributed systems, API and messaging integrations, payment transformation, regulatory compliance, troubleshooting, performance optimization, technical design reviews, engineering standards, and team mentorship.

Lead ServiceNow architecture across the enterprise: design scalable service management solutions, govern implementations, assess risks, translate stakeholder requirements into sustainable designs, mentor teams, manage vendor relationships, and ensure security, compliance and alignment with multi-year roadmaps.

Designs, engineers, and implements data, software, and technology solutions for scientific and business needs. Leads technical projects, resolves complex problems, evaluates emerging platforms, and drives productivity improvements. Provides technical leadership, mentors less experienced staff, manages project scope and budgets, collaborates with business groups, affiliates, vendors, and multidisciplinary teams, and ensures compliance with corporate policies, GxP requirements, data security standards, and software development practices.

Lead and develop a team of 5–10 engineers to deliver secure, scalable platform services and APIs. Partner with product and cross-functional teams to plan, operate, and modernize cloud-native distributed systems, driving observability, automation, incident response, security, and technical debt reduction.

Develop and lead end-to-end testing for Cisco’s IQ Platform across React UIs, REST APIs, Kafka pipelines, networking, and SaaS/on-premises environments. Build scalable UI and API automation frameworks, integrate tests into CI/CD, apply agentic AI for test generation and script refactoring, troubleshoot cross-stack issues, validate performance and security, and mentor engineers.

Build responsive, accessible, high-performance web interfaces for Cisco’s AI and automation platform using Angular, TypeScript, HTML5, and CSS3. Translate Figma designs into reusable component-based UI systems, integrate REST APIs and Node.js services, and deploy applications on Google Cloud Platform. Collaborate with UX, product, backend, platform, and quality engineers in an Agile environment. Preferred experience includes AI application interfaces, streaming responses, CI/CD, GraphQL, testing frameworks, Docker, accessibility standards, state management, and micro-frontends.

Build and operate secure, scalable microservices on AWS and Kubernetes. Develop generative and agentic AI capabilities using LLMs, RAG, embeddings, tool calling, and agentic workflows. Apply security across applications, APIs, containers, identity, and data. Automate testing, deployment, and monitoring through DevSecOps practices, troubleshoot production issues, and improve engineering standards while mentoring and collaborating across teams.

Design, develop, and maintain scalable automated UI test frameworks for desktop, web, and embedded applications. Build reliable test suites for smoke, regression, and end-to-end validation, integrate automation with source control and CI/CD, mentor QA engineers, participate in Agile ceremonies, and improve automation reliability and maintainability.

Designs and maintains automated web application test frameworks using Selenium and Java. Develops regression, smoke, end-to-end, API, database, and ETL validation tests; integrates testing into CI/CD pipelines; analyzes requirements, reports defects, and supports releases. Collaborates with development, product, business analysis, and QA teams in an Agile environment while improving test coverage, quality metrics, and release confidence.

Senior QA Engineer responsible for manual and automated testing of high-volume, data-intensive applications. Duties include developing test plans, executing regression and UAT testing, maintaining Selenium or Playwright automation, performing database testing with SQL, troubleshooting defects, reporting QA metrics, and collaborating with engineering and business teams in an Agile environment. The role also mentors QA professionals and provides technical leadership across testing activities.

Designs and optimizes ESD and Latch-Up protection for high-voltage BCD, analog, power, and mixed-signal ICs. Performs HBM, CDM, and TLP characterization, supports silicon debugging and failure analysis, develops design guidelines and ESD libraries, and leads risk assessment and design sign-off. Collaborates with foundries, technology teams, customers, and global engineering groups on reliability and ESD solutions.

Own verification of complex digital blocks and SoC features from planning through coverage closure. Develop reusable SystemVerilog/UVM environments, constrained-random and targeted tests, assertions, checkers, scoreboards, and coverage models. Debug RTL, testbench, firmware, and regression issues; automate regressions and reporting; and collaborate across architecture, design, firmware, analog, validation, and systems teams. Provide technical guidance and communicate risks, status, and signoff evidence.

Supports and characterizes analog and mixed-signal semiconductor products for space applications. Responsibilities include laboratory testing, validation planning, datasheet and application note development, customer technical support, field-return analysis, FAE training, new product definition, and customer or industry presentations. The role requires strong analog design, bench-lab troubleshooting, documentation, communication, and programming or circuit-modeling capabilities.

As a Process Quality Specialist, you will enhance customer satisfaction by analyzing defects, ensuring product quality for power distribution equipment, and driving process improvements.

Develop embedded software and advanced control algorithms for power conversion and motor control applications. Lead engineering analysis, modeling, simulation, and testing; define software architecture; troubleshoot technical issues; and support products from concept through delivery. Serve as a technical expert on embedded systems, modern control theory, power electronics, and industrial applications while collaborating across engineering disciplines.

Oversee switchgear R&D projects from concept through implementation. Design, analyze, and optimize electrical switchgear systems, including circuit breakers, contactors, and switches, using simulation and 3D CAD tools. Apply ANSI, IEEE, NEMA, UL, and IEC standards while developing reliable, safe products. Collaborate with product development, manufacturing, and quality teams, manage stage-gate projects, prepare technical documentation, and mentor junior engineers.

Designs, develops, tests, integrates, deploys, and sustains secure software for distributed, disconnected, intermittent, and low-bandwidth DoD environments. Responsibilities include building APIs and modern architectures, maintaining CI/CD and DevSecOps security gates, deploying to Kubernetes and cloud environments, integrating cross-domain systems, troubleshooting operational issues, supporting acceptance testing and fielding, and producing technical documentation. The role collaborates with engineering, cybersecurity, platform, government, and mission stakeholders across classified and unclassified environments.