Top Senior Linux Jobs in San Diego, CA

Build and scale Posh’s backend services and APIs, owning systems from design through deployment and on-call. Responsibilities include improving performance and reliability, creating data models and pipelines, embedding security and instrumentation, contributing to architecture and code reviews, mentoring engineers, and participating in technical interviews.

Leads a distributed software engineering team responsible for New Relic’s cloud foundation platform. Responsibilities include mentoring engineers, driving proactive platform ownership, leading multi-region infrastructure expansions, guiding Go-based microservices and cellular architectures at extreme scale, partnering across Engineering, Security, and Product, and overseeing production reliability, incident response, GitOps, and infrastructure-as-code practices.

Design, deploy, automate, and support large-scale cloud network infrastructure across AWS, Azure, and GCP. Manage firewalls, Kubernetes networking, VPNs, DNS, BGP, monitoring, infrastructure as code, and network performance. Lead technical roadmaps, design reviews, troubleshooting, engineer onboarding, and team direction while participating in on-call support and occasional travel.

Design, develop, and deploy scalable fullstack web applications (MERN). Build and integrate REST/GraphQL APIs, optimize SQL queries, write automated tests, follow coding standards, collaborate in Agile teams, and contribute to technical documentation and architecture.

As a Software Engineer at Citadel, you will build systems for investments, collaborate with researchers, and tackle complex problems.

Lead design and build of an AI-powered, spec-driven development platform: evaluate frameworks, architect end-to-end tooling, integrate with CI/CD and Kubernetes, partner with DevOps, MLE, and Security, instrument adoption and velocity metrics, and drive org-wide rollout and training to enable non-engineers to author specs.

Leads technical roadmap and architecture while building scalable full-stack SaaS features hands-on. Owns the full development lifecycle, establishes engineering, testing, security, and AI-assisted development standards, and guides cloud-native system evolution. Collaborates across product and engineering, mentors engineers, mitigates technical risks, and drives quality, performance, observability, and continuous improvement.

Own and architect Mochi's cross-platform mobile apps: integrate HealthKit and Health Connect, leverage Expo/EAS and Config Plugins, design offline-first sync and aggressive caching, optimize mobile performance and UX, implement secure messaging and AI-powered workflows, manage CI/CD and app reliability, and elevate engineering practices through code review and testing.

Responsible for maintaining FedRAMP-compliant infrastructure, collaborating with software engineers, and ensuring system availability and security. Duties include infrastructure design, automation, monitoring, and incident response.

Build and own backend services for a private markets investing platform. Deliver end-to-end software across design, implementation, testing, deployment, and operations. Collaborate with product and engineering teams, iterate on ambiguous problems, apply distributed systems principles, and incorporate AI/LLMs for data extraction and document generation. Participate in recruiting and maintain high-quality delivery practices.