Top Senior Linux Jobs in San Diego, CA

Lead Duolingo’s Experiments Team and oversee the in-house experimentation platform supporting A/B test design, execution, measurement, automation, and backend feature controls. Expand statistical capabilities, improve platform scalability and cost efficiency, advise product teams on experiment strategy, and partner cross-functionally to shape product development. Manage, hire, develop, and retain software engineers while building scalable infrastructure for large datasets.

Own end-to-end physical layout and routing for high-density, multi-die organic substrates, packages, modules, and high-speed interface boards. Perform feasibility studies, signal and power integrity implementation, package-to-board co-design, constraint and library management, design checks, manufacturing documentation, and release activities. Collaborate with ASIC, mechanical, SI/PI, manufacturing, foundry, substrate, OSAT, and fabrication partners to resolve manufacturability issues and deliver designs to production.

Develop, deploy, monitor, troubleshoot, and optimize RPA robots automating utility bill transactions and complex data processes. Expand automation into EDI and core systems, support SFTP/MFT integrations, coordinate vendor configurations, collaborate with internal technical teams, and perform testing to ensure reliability and data integrity.

Designs and develops RF subsystems for MANET radios, including PLLs, LNAs, mixers, power amplifiers, RFICs, schematics, and PCB layouts. Performs RF characterization, tuning, troubleshooting, EMI and emissions compliance, production yield improvement, and design-for-manufacturability activities. Requires multi-GHz RF hardware experience, RF simulation tools, and hands-on troubleshooting of harmonics, spurious emissions, stability, and EMI issues. The role is fully onsite in Rancho Bernardo, California, with rare local travel.

Leads the design, development, and maintenance of complex backend software systems. Owns significant features end to end, makes architectural decisions, improves scalability and performance, ensures code quality, mentors engineers, and collaborates with cross-functional teams. Builds production-ready C# and .NET APIs within microservices and containerized environments, using cloud databases and services. Participates in code reviews, testing, debugging, and continuous improvement.

Designs, develops, tests, deploys, and maintains scalable full stack web applications using Vue.js, Nuxt.js, Node.js, APIs, databases, and headless CMS and commerce platforms. The role contributes to architecture, integrations, automated testing, CI/CD, security, accessibility, SEO, and web performance optimization. It collaborates with Product, UX/UI, DevOps, Web Marketing, and business stakeholders in an onsite environment.

Manages, supervises, and trains the fire protection design department. Oversees system layouts, field checking, equipment submittals, hydraulic calculations, installation requirements, and project closeout. Coordinates fire suppression designs with mechanical and other trade systems, identifies conflicts, conducts site surveys, reviews architectural and engineering drawings, and enforces safety and risk management procedures. The role also organizes multiple projects, supports code compliance, and ensures quality and timely delivery.

Generate and maintain aerodynamic force and moment databases across full flight envelopes for reentry vehicles using high-fidelity CFD, lower-order methods, wind tunnel and flight data. Quantify uncertainties, support GNC and simulation teams, automate database generation, and refine models for system-level 3-DOF/6-DOF simulations.

Build and operate secure, scalable cloud platforms, automation, infrastructure-as-code, CI/CD pipelines, observability, and developer self-service capabilities. Support AI, machine learning, data, and generative AI workloads through deployment automation, monitoring, governance, and lifecycle tooling. Partner with engineering, security, infrastructure, and data teams to improve reliability, developer experience, compliance, and operational readiness while mentoring engineers and contributing to technical design decisions.

Leads global automation engineering projects from concept through deployment, including capital planning, technology evaluation, equipment development, installation, commissioning, and operational handover. Collaborates with global cross-functional teams and suppliers while managing scope, schedules, budgets, risks, safety, quality, and regulatory compliance. Advances Industry 4.0, robotics, AI/ML, IoT, digital twin, and automated material-handling solutions to improve repair operations, reliability, sustainability, and efficiency.