Top Software Engineer Jobs in San Diego, CA

Join Twilio as a Staff Software Engineer to design and build scalable, reliable communication systems. Collaborate with cross-functional teams, mentor engineers, drive technical direction, perform architecture and code reviews, and deliver high-quality production services in a remote-first environment.

Senior Software Engineer at Twilio will design, build, and maintain scalable communication systems, collaborate with cross-functional teams, mentor engineers, and contribute to architecture and delivery. Responsibilities include writing high-quality code, improving performance and reliability, shipping product features, and participating in technical planning within a remote-first, inclusive environment.

Develop, maintain, and scale user-focused web and mobile applications. Write clean HTML/CSS/JavaScript, integrate back-end services and databases, collaborate with designers, document solutions, apply security and best practices, and stay current with web technologies.

The Backend Engineer will build a multi-cloud inference platform and manage distributed systems for AI model deployment while ensuring operational excellence and low toil services.

Design and maintain cross-chain integrations, build transaction creation/signing and status-tracking flows, integrate liquidity/exchange/bridge providers, improve route safety and execution reliability, and help set architecture and engineering standards with product and platform teams.

The Solutions Engineer will support the integration of Near Intents, assist developers, enhance product stability, and provide technical support to ecosystem partners.

As a Front-End Developer Intern, you will design and build web applications, collaborate with teams, participate in code reviews, and maintain code quality.

Build end-to-end AI integrations in a cybersecurity platform: gather contextual security data, call and optimize AI services, map responses to actionable UI (React), implement error/fallback handling, monitoring, caching, and user feedback loops while working directly with customers.

Design, build, and maintain backend services and APIs in Go; optimize PostgreSQL schemas and queries; create reliable integrations and orchestration layers; implement observability and security best practices; collaborate across engineering and product to improve developer experience and operate a SaaS platform.

Build and maintain React/TypeScript UI components, pages, and data visualizations for a security/compliance platform. Extend component library, optimize performance for large datasets, implement real-time updates, collaborate with designers, backend engineers, and customers to ship high-fidelity, production-ready interfaces.

Lead and scale engineering teams building Protect, a real-time multi-signal fraud detection platform. Set technical strategy, develop managers and senior engineers, deliver distributed systems and APIs, improve architecture, observability, reliability, and developer productivity while partnering with Product, Research, Security, and exec stakeholders.

The Deployed Engineer will build demos and POCs, support customer questions, manage technical relationships, update documentation, and collaborate with engineering to drive customer success.

Design, develop, test, and support full-stack healthcare applications across the application stack. Modify and maintain existing software, enforce development best practices, participate in QA and SDLC processes, and collaborate with product, architecture, and support teams to deliver reliable solutions.