Top Senior Javascript Jobs in San Francisco Bay Area, CA

Lead full-stack development using Next.js and NestJS, build Node.js backend services with PostgreSQL, implement real-time messaging, apply prompt engineering and model training, develop embeddings/chunking and RAG features, write TypeScript code, mentor juniors, and participate in code reviews.

As a Senior Software Engineer at Sentry, you'll innovate in JavaScript SDKs, push coding boundaries, and engage with the open-source community, ensuring impactful developer tools.

As a Senior Software Engineer, you will develop and innovate JavaScript SDKs for various server runtimes, ensuring high-quality code and engaging with the open-source community.

Build end-to-end features in a JS/TS stack, designing scalable backend services and responsive real-time frontends. Improve observability, performance, and reliability, collaborate with product/design, and own full-stack implementation from APIs and data models to UI.

The Senior Full Stack JavaScript Developer will build and maintain user interfaces using React and Next.js, integrate with Node.js backends, and guide other developers. Responsibilities include ensuring accessibility, performance, and reliability of features, engaging in code reviews, and collaborating closely with product teams.

Senior full‑stack engineer responsible for building backend services (Node.js/TypeScript) and integrating with frontends (React/Vue). Ship production APIs, collaborate cross‑functionally, own delivery, mentor peers, and develop modular, testable, performant systems across diverse greenfield projects.

The role involves leading the development of a high-performance Web SDK for fraud detection and risk management, implementing algorithms for device fingerprinting, and ensuring security and performance optimization.

Seek a Senior React/JavaScript UI Developer for enterprise application support focusing on React, Vue, and secure coding principles within Agile.

The Senior Javascript Full Stack Engineer will develop and maintain web applications, collaborate with teams on new features, debug issues, and improve engineering standards.

The role involves designing, implementing, and operating micro-services on the Databricks platform, focusing on backend development and interfacing with cloud APIs.

As a Senior Full Stack Engineer, you'll develop solutions for data visualization, manage compute clusters, and enhance user experience focusing on customer value with robust product workflows.

As Founding Full-Stack Engineer, lead the development of technology solutions, build integrations, and define tech roadmap priorities in a remote role for an insurance tech provider.

The Senior Software Engineer will develop consumer-oriented healthcare software, collaborate with teams, and mentor juniors while utilizing modern technologies.

As a Senior Software Engineer at Elicit, you will build features for an AI research assistant, ensuring quality while collaborating with a small team.

The Senior Backend Software Engineer will build intricate backend systems, develop APIs, ensure high availability, and improve application scalability and performance.

Engage in designing and maintaining core infrastructure for AI systems in healthcare. Lead product initiatives, ensuring high-quality coding and system reliability.

Join the Entefy team as a Senior Full Stack Engineer to build a scalable full stack application enhancing digital interaction for global clients.

The Senior Full Stack Engineer will design and implement APIs with NodeJS, develop UIs with React, manage data pipelines, and deploy projects on AWS.

As a Senior Software Engineer at Flex, you'll design and maintain financial services architecture, mentor junior engineers, and ensure scalability and security for innovative financial products.

Build end-to-end features, design intuitive interfaces, manage asynchronous backend jobs, and contribute to open-source efforts, while leading project development from concept to monitoring.

Design and develop scalable backend systems for SaaS applications, mentor engineers, and lead projects while collaborating with cross-functional teams.