Top Senior Full-Stack Engineer Jobs in San Francisco, CA

Develop applications for game operations, build backend APIs, and frontend components using various technologies, collaborating with teams across the company.

Lead full‑stack design and delivery of customer-facing web experiences (Browse, Navigate, Preview). Own architecture, APIs, data models, rollouts, observability, on‑call readiness, and cross-team alignment, using approved AI-assisted workflows while ensuring technical quality and reliability.

The Senior Full Stack Developer will build end-to-end solutions, collaborate in a remote environment, and write technical documentation. The role requires expertise in Ruby on Rails and various programming paradigms.

Lead technical direction and delivery for the Acquisition & Onboarding full‑stack team. Build and maintain mobile (React Native/native) and web experiences, backend services at scale, and operational tooling. Drive architecture, mentor engineers, ensure reliability/monitoring/on‑call readiness, collaborate with product and design, and improve dev processes, testing, and release practices to impact conversion and retention.

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.

Own end-to-end growth features across the stack (TypeScript/Node.js backend, React frontend) to drive acquisition, conversion, retention and monetisation. Design architecture, run A/B experiments, instrument metrics, use AI-assisted tools in engineering workflows, mentor juniors, and iterate rapidly with PMs and designers.

The Senior Full-Stack Engineer will build end-to-end features, create APIs, write requirement documents, and learn Rust while improving product experiences for users.

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

The Senior Fullstack Engineer will lead projects, mentor engineers, and build user-facing SaaS products using React, TypeScript, Node.js, GraphQL, and MongoDB, focusing on team collaboration and effective trade-off decision-making.

Build and ship end-to-end full‑stack features for pharmacy and health system workflows. Partner with product and operations, own design through production and support, embed AI into workflows, review code, and contribute to platform durability and scaling in a compliance‑critical healthcare environment.

Owner of Vannevar's authentication and authorization platform: build tenant-isolated auth systems, self-service user/group/permission admin UI, tooling to visualize and validate access, feature-flag and platform management interfaces, and shared authorization capabilities across products.

Senior full‑stack engineer responsible for building production-quality Salesforce platform capabilities, integrations (MuleSoft, REST/SOAP), AI-enabled tooling (Claude plugins, MCP servers), CI/CD, and reusable libraries. Mentor engineers, run architecture/code reviews, and collaborate cross-functionally to deliver scalable, secure cloud-native solutions using Python, LWC, Apex, and AWS.

Design, develop, and deliver fullstack web solutions, optimize platforms, mentor engineers, and manage product features from ideation to launch.

The Senior Fullstack Engineer will deliver software products, collaborate with product and business teams, lead technical practices, and ensure high-velocity iteration on a mobile advertising platform.

The Senior Full-Stack Engineer will develop claims monitoring tools and backend services, collaborate with other engineers, and influence the product architecture in a health insurance startup.

Own and implement end-to-end product features across the stack (React/TypeScript front end, Ruby on Rails backend, relational DBs, GCP infra). Design APIs and data models, ensure performance and reliability, integrate AI/LLM-powered features, collaborate with product/design/clinical teams, perform code reviews, and mentor junior engineers.

Build and ship full‑stack growth experiments end-to-end to improve acquisition, activation, engagement, and monetization. Collaborate with product, design, and analytics, analyze experiment results, iterate quickly, and contribute to experimentation platform and growth infrastructure while balancing speed, quality, and long-term maintainability.

As a Senior Fullstack Engineer, you'll design and develop healthcare AI applications, architect scalable solutions, collaborate with teams, and optimize performance.

Senior fullstack engineer to build and scale Brigit's consumer finance platform. Own end-to-end features across frontend (React/React Native/TypeScript) and backend (Java/REST/SQL), optimize database and APIs for high scale, integrate 3rd-party services, implement risk and transaction algorithms, improve CI/CD, testing, monitoring, and internal tooling to support millions of users.

Build end-to-end data and analytics features: ingest and model data, build transformations and pipelines, create client-facing dashboards and interfaces, and develop LLM-powered workflows to accelerate analysis and app development. Partner with stakeholders, perform exploratory analyses, and ensure data quality, observability, and maintainability while influencing data engineering strategy.

Hands-on senior full stack engineer to design, code, review, and ship web front ends and backend APIs. Lead technical execution for a small team, define architecture and API contracts, integrate AI/LLM features (tool calling, prompt/control flow), support secure enterprise integrations, and mentor engineers through code review and pairing.

Lead full-stack engineering across client engagements: architect, build, deploy, and maintain web applications, APIs, CMS implementations, and CI/CD workflows. Own technical client relationships, enforce best practices, evaluate AI-enabled development, and support long-term maintenance while balancing accessibility, security, performance, and project constraints.

As a Senior Software Engineer, you will design agent-driven financial audit workflows, lead projects, mentor engineers, and collaborate across teams to innovate in audit technology.

Build and productionize LLM-backed agents and workflows: create eval harnesses, observability, provenance and human-review surfaces, extend agent capabilities (web/CMS, OAuth), implement pipeline orchestration, and ship scoring/ranking models and reusable modules to scale across clients.

Build and maintain Grafana Cloud integrations and observability features across frontend (TypeScript/React), backend (Golang), and monitoring mixins (Jsonnet). Ship end-to-end features, own projects to production, contribute upstream to OpenTelemetry/Prometheus, run on-call for owned services, and communicate designs and demos across teams.