Top Software Engineer Jobs in San Francisco Bay Area, CA

Designs, develops, tests, deploys, and supports secure, scalable backend applications, REST APIs, microservices, and data-intensive services. Builds distributed processing workflows with Python, PySpark, Azure Databricks, and Azure Data Factory. Responsibilities include API design, automated testing, CI/CD, observability, security, troubleshooting, performance optimization, and production support. Collaborates with application, data, platform, architecture, security, and product teams while using approved AI tools to improve engineering productivity.

Lead the development of foundational iOS platform systems, shared frameworks, developer tools, architecture standards, and multi-quarter migrations across Cash App and Square. Drive performance, reliability, security, testing, observability, release safety, and AI-assisted development practices. This hands-on individual contributor role influences multiple teams, develops technical leaders, and partners broadly to improve iOS engineering quality, productivity, and product outcomes.

Build and ship impactful features for Notion’s Android and iOS applications during a 12-week internship. Responsibilities include writing clean, secure, tested, documented code; collaborating with mobile engineers; improving app performance, reliability, and user experience; and potentially optimizing web-stack components. Interns work with mentors and cross-functional teammates from Notion’s New York or San Francisco offices.

Design, build, and operate Vercel’s Workflows, Queues, and Cron platform capabilities. Develop APIs, SDKs, and tooling for durable, event-driven, and scheduled workloads. Solve distributed-systems challenges involving message delivery, retries, execution, state, concurrency, and fault tolerance. Collaborate with product, infrastructure, and developer experience teams, engage with developers and open-source communities, and maintain high standards for tested code, technical communication, and production ownership.

Build and own foundational Android platform infrastructure, including architecture, shared libraries, tooling, observability, performance systems, and developer experience. Lead cross-organizational technical initiatives, establish Android engineering standards, evaluate AI-assisted development tools, and build AI-powered platform capabilities. Collaborate across mobile, web, backend, product, and design teams while mentoring engineers and driving large-scale organizational impact.

Staff Android Software Engineer responsible for owning Cash App’s foundational Android platform, including architecture, shared libraries, infrastructure, developer tooling, observability, performance, and experimentation systems. The role drives AI-native engineering practices, leads cross-organizational technical initiatives, establishes standards, mentors engineers, and partners across mobile, web, backend, product, and design teams. Requires deep Android expertise and organizational-level impact.

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.

Design, build, scale, and operate high-volume payment APIs and distributed systems serving global traffic. Lead complex engineering projects from requirements through production, improve reliability, performance, observability, fault tolerance, and security, and participate in on-call and incident response. Collaborate across product and engineering teams, use AI-assisted development tools responsibly, and mentor engineers through technical reviews and documentation.

Design, build, scale, and operate high-volume payment APIs and distributed systems serving global traffic. Lead complex engineering projects from requirements through production, improve performance, observability, reliability, fault tolerance, and security, and participate in on-call incident response. Collaborate across product and engineering teams, use AI-assisted development tools responsibly, and mentor engineers through technical reviews, documentation, and guidance.

Own and evolve Vercel’s agentic infrastructure and build/deployment systems at scale. Design high-performance microservices, scalable APIs, resilient database schemas, and reliable workflows processing millions of builds daily. Lead projects from technical direction through production operation, improve performance and developer experience, collaborate cross-functionally, participate in on-call rotation, contribute to open source, and establish standards for scalability and reliability.

Build full-stack, agent-driven software for SOX control testing and internal audit workflows. Design reliable and observable LLM agent systems, create structured audit deliverables, own end-to-end technical workstreams, and collaborate with product, design, auditors, and domain experts. Engineers will help shape agentic architecture, AI tooling, evaluation practices, and product direction while working on ambiguous 0-to-1 initiatives.

As a Senior or Staff Deployed Software Engineer, you will design and build software solutions, collaborate with teams, and drive technical strategy while engaging with customers to solve complex problems.

Build and scale database infrastructure that enables customers to use Postgres without DBA expertise. Responsibilities include taking a product from alpha to general availability, optimizing queries and data loading, managing schema changes and concurrency, automating database provisioning and fleet operations, improving observability, and shaping architecture through customer collaboration. The role requires hands-on backend engineering, technical leadership, product judgment, and willingness to work across the stack.

Build high-scale internal observability systems covering metrics, logs, traces, cost attribution, chargeback, compliance, and auditing. Partner with backend and platform teams to instrument services, evaluate observability infrastructure, and scale systems for Vercel’s production traffic. The role requires TypeScript, production experience with Go, Rust, or Zig, distributed systems expertise, cloud infrastructure knowledge, and familiarity with observability tooling.

Develop and maintain native iOS applications using Swift and SwiftUI for DraftKings’ financial platform. Responsibilities include building user-facing features, integrating APIs, managing data and state, optimizing performance, monitoring crash analytics, participating in code reviews and testing, and troubleshooting reliability issues. The role collaborates with product, design, analytics, and engineering teams to deliver scalable, compliant mobile experiences.

Build and launch backend identity decisioning systems that validate consumer identity and satisfy KYC regulations. Collaborate with Product, Compliance, Auth, Fraud, Analytics, and engineering teams; decompose projects, write tested and extensible code, monitor system metrics, support availability and on-call operations, debug code, participate in reviews, and contribute to technical decisions and team development.

Build and ship production software across Superhuman’s AI-powered productivity products. Develop features using modern web frameworks, large language models, natural language processing, and intelligent automation. Contribute to scalable distributed systems, testing, deployment, and system design while collaborating with product, design, and engineering teams. The role emphasizes mentorship, rapid growth, independent execution, and delivering reliable user experiences to millions of users.

Lead the architecture and evolution of native iOS foundations supporting seller-facing applications. Identify systemic problems, define platform strategy and standards, build prototypes and reference implementations, lead multi-quarter migrations, and establish practices for quality, testing, observability, release safety, and maintainability. Develop senior engineers and create scalable ownership models across teams.

Build and deploy full-stack healthcare financial products used by millions of patients. Develop AI- and ML-powered features, integrate LLMs, enhance an AI billing assistant, and create patient payment solutions. Collaborate with product, design, and partner engineering teams to deliver production-ready software. Contribute to technical planning, coordinate complex development efforts, mentor peers, and maintain high standards for testing, code quality, efficiency, and technical debt management.

Build and maintain native Android applications and infrastructure for Redfin’s mobile home-buying experience. Responsibilities include designing complex technical projects, writing maintainable and testable code, reviewing code, documenting systems, collaborating with product and design teams, improving performance, applying Android best practices, and using AI code-generation tools. The role may include on-call support for production systems.

Build and ship full-stack software for CoreWeave’s internal data infrastructure and operational applications. Develop TypeScript, React, and Next.js frontends; Python services on Kubernetes; SQL queries and data models; and AI-enabled interfaces such as text-to-SQL tools, retrieval systems, and agents. Own scoped features through production, including testing and post-release fixes, while collaborating with senior engineers and internal users.

Build and operate high-scale CDN serving and caching services for ISR, PPR, image optimization, and other content. Work across Go, Lua, and TypeScript; execute projects from implementation through progressive rollout and production validation. Develop dashboards, metrics, alerts, logs, and end-to-end tests; participate in on-call and incident follow-ups. Collaborate with Next.js and CI/CD teams while improving globally distributed systems and performance.

Own the technical direction and delivery of Benchling’s internal tools and automation portfolio. Build production systems, SaaS integrations, workflow orchestration, CI/CD, and secure enterprise infrastructure. Partner with internal teams to identify automation opportunities, graduate prototypes into reliable systems, support production operations, enable non-engineering builders, and establish engineering standards. The role also includes technical hiring, mentoring, architecture, threat modeling, and selective application of LLMs and agentic workflows.

Build and own backend and full-stack systems for partner integrations and patient access. Design scalable platform capabilities for multi-state healthcare programs, convert partner requirements into reusable systems, collaborate with product, data, operations, and clinical teams, and lead projects from architecture through rollout. The role also includes shaping technical direction and mentoring engineers.

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.