Top Full-Stack Engineer Jobs in San Francisco, CA

Build and scale backend-focused, full-stack web applications for Braze’s Cloud Data Ingestion and Data Transformation platforms. Drive architectural decisions, technical strategy, and end-to-end feature delivery. Develop scalable systems handling high-volume data and traffic, including automated pipelines, asynchronous processing, and ETL applications. Collaborate within an agile team while delivering reliable front-end and backend experiences that improve customer data integration and platform growth.

Develop and deploy customer-focused web, mobile, and backend applications across the full software stack. Design major features, contribute to architecture decisions, conduct code reviews, and ensure secure, high-quality implementations. Collaborate with stakeholders and cross-functional teams using Agile and SDLC practices. Manage version control, CI/CD, environments, and releases; maintain automated test coverage and perform root-cause analysis. Build and optimize relational data solutions using SQL Server, including complex queries, stored procedures, and performance tuning.

Build and improve full-stack software for engineers operating mission-critical hardware. Responsibilities include developing React and TypeScript/JavaScript interfaces, contributing to backend services and APIs, creating reliable data flows, debugging across systems, writing tested code, and collaborating on greenfield products. The intern will work closely with software engineers and operators while gaining experience across frontend, backend, databases, and hardware-connected systems.

Build end-to-end product features with a backend emphasis: design databases, develop backend services and APIs, own infrastructure (CI/CD, monitoring, deployments), optimize performance, troubleshoot production incidents, and maintain automated tests to ensure reliability and scalability.

Build and ship customer-facing products across backend services, APIs, data models, React web interfaces, and Android point-of-sale applications. Learn unfamiliar platforms quickly, collaborate with product and design, deliver resilient code, and own testing, instrumentation, on-call support, and cleanup. The role emphasizes 0-to-1 product development, customer-focused decision-making, rapid experimentation, and using AI tools to improve development velocity and quality.

Build and maintain scalable e-commerce and marketplace features across Node.js, React, MySQL, and MongoDB. Own complex features end to end, design backend services and APIs, integrate PunchOut procurement systems, improve platform security and reliability, conduct code reviews, and mentor engineers. The role requires strong full-stack JavaScript and TypeScript expertise, e-commerce domain experience, and the ability to work autonomously on high-volume transactional software.

Lead the technical direction and implementation of large-scale SaaS product features. Build secure, reliable, maintainable, well-tested software; evaluate architectural trade-offs; debug team inefficiencies; and contribute to code reviews, documentation, and complex bug fixes. Collaborate across product, design, and engineering, influence strategy, identify organizational blockers, mentor engineers, and improve engineering practices around testing, performance, security, privacy, and reliability.

Build full-stack developer experience tooling for Superhuman Docs, including internal platforms, CI/CD pipelines, deployment tools, build systems, local development environments, testing workflows, golden paths, and documentation. Partner with engineers, business-unit leaders, and the central platform team to define developer productivity roadmaps and metrics. Improve release speed, reliability, and engineering workflows across a hybrid monolith and microservices architecture.

Build scalable, data-intensive products from the ground up, focusing on Java/Kotlin backend services, REST or GraphQL APIs, data access, and React/TypeScript interfaces. Responsibilities include architecture, performance optimization, testing, observability, production troubleshooting, technical documentation, and end-to-end feature ownership. Collaborate with data, reporting, design, and product teams while using AI-assisted development tools to accelerate delivery.

Develop fullstack web applications, enhance platform performance, collaborate on high-impact opportunities, and ensure stable, scalable solutions. Engage in rapid iterations and be a committed team player.

Build, enhance, and support microservices powering financial portfolio construction, data integrations, and real-time operational workflows. Develop platform capabilities, APIs, data pipelines, and infrastructure while collaborating with stakeholders to address business needs. Troubleshoot live production issues, provide critical real-time support, write maintainable code, validate quality, and contribute to a fast-paced interdisciplinary engineering environment.

Build backend-heavy fullstack features for DX Fabric, including scalable REST APIs, React components, software catalogs, scorecards, automated workflows, and agentic capabilities. Optimize PostgreSQL and SQL performance at enterprise scale, implement monitoring and error reporting, review code, and collaborate with product, design, and engineering teams in an Agile environment.

Own the specification, design, and implementation of features for FareHarbor’s large-scale web application. Collaborate with product teammates, develop scalable and performant full-stack solutions, improve automated testing, resolve technical issues, and participate in code reviews. The role requires strong Python and JavaScript skills, experience with front-end and back-end frameworks, relational databases, and production scalability challenges.

Build REST APIs, customer-facing React components, backend monitoring, CI/CD pipelines, content management system integrations, and reliable features and services. The role requires JavaScript or TypeScript experience with React and Node.js, REST platform integrations, Git collaboration, HTML and Sass/CSS, server technologies, and cross-functional work with UX and visual designers. Experience with enterprise content management systems, AWS, Java, Freemarker, or Rust is advantageous.

Full-stack engineer building React front-ends and Python microservices for a Kubernetes-based cloud platform. Own end-to-end features, design microservices for portfolio construction, troubleshoot production, modernize components, and use AI-assisted development tools within agile two-week sprints.

Leads technical vision and strategy for Affirm’s Marketplace, Search, Ads Platform, and consumer experiences. Designs scalable full-stack platforms, guides architecture and technical excellence, coordinates initiatives across engineering teams, mentors engineers, and drives reliable delivery of customer-focused products across iOS, Android, and Web.

Build full-stack features for the Curator team: observability tools, AI context systems, governance workflows, SQL compilation and semantic model work, and intuitive front-end UX. Work across React, TypeScript, Python, and modern data warehouses to ensure reliable, trustworthy AI-driven answers.

Leads technical direction and develops fullstack purchase experiences using Ruby on Rails and Vue.js. Designs resilient transactional flows, integrates billing and CRM systems, improves reliability and rollout safety, mentors engineers, reviews code, reduces technical debt, and participates in incident response. Partners with Product, Design, Billing, and Support to improve GitLab’s purchase, subscription, discount, and upgrade workflows.

The Senior Full Stack Engineer will design and develop features for the platform, maintain code, and collaborate across teams to improve engineering processes.

Join as an early founding full-stack engineer to architect, build, and deploy a scalable platform serving AI-driven voice applications. You will own frontend and backend development, design infrastructure with the CTO, and deliver reliable production systems for enterprise customers.

Build and ship full-stack features across customer applications, cloud backend services, fleet infrastructure, and on-robot systems. Develop web and mobile interfaces, telemetry and remote-operations tooling, deployment infrastructure, and observability systems. Debug issues across service boundaries, languages, and machines while collaborating with app, robotics, hardware, and ML teams. Required work spans TypeScript, Python or Go, distributed systems, APIs, streaming, containers, CI/CD, and cloud infrastructure.

Own end-to-end customer-facing software for grid capacity analysis, project planning, and infrastructure decisions. Build interactive data-rich interfaces, backend-for-frontend services, APIs, and PostgreSQL data models. Collaborate with product, UX, backend, data, AI, and power systems teams to translate complex technical outputs into reliable product experiences. Independently clarify requirements, make technical tradeoffs, and ship production features in a rapidly evolving environment.

Build and ship small end-to-end features across frontend and backend systems for research infrastructure. The role involves learning from experienced engineers, using AI coding tools, pair programming, collaborating with the team, and deploying production software. Candidates should have 0–3 years of experience, a strong computer science or related educational background, experience using AI coding assistants, and demonstrated work through GitHub repositories or side projects.

Build and maintain full-stack features for a production healthcare platform using React, Next.js, TypeScript, Node.js, PostgreSQL, and RPC services. Contribute to AI and LLM-adjacent systems, handle sensitive regulated data, and collaborate with product, QA, and design teams in an Agile environment.

As a Software Engineer, you will design and build critical systems for enterprise customers, ensuring regulatory compliance and enhancing product capabilities. Your role involves technical leadership, architectural work, and mentoring team members, with a focus on scalable and reliable software solutions.