Top Engineering Jobs in San Francisco, CA

Lead design and implementation of tax-related full-stack features, improving tax collection, calculation, payment, and filing experiences. Drive technical strategy, mentor engineers, collaborate cross-functionally, and prioritize long-term platform investments. Apply AI-assisted development where useful and deliver scalable, production-quality systems that serve millions of businesses.

Architect and manage distributed database systems, performing complex migrations, and improving infrastructure efficiency while mentoring teams.

Design, build, and harden asynchronous infrastructure and developer tooling to improve engineer productivity. Lead architecture and code-level solutions for background jobs and async communication (Sidekiq, Kafka/Karafka), drive large-scale code migrations using AI, and collaborate with product engineers to measure and iterate on platform improvements and incident resilience.

Lead architecture, development, testing, and refinement of Gusto's iOS app and embedded mobile web views. Scale shared services and mobile infrastructure (build pipelines, CI/CD, test automation, release processes), implement core platform features (push notifications, accessibility, localization), use AI agents to accelerate delivery, collaborate cross-functionally, and mentor engineers while iterating on product features that integrate core business and financial functions.

Lead design and implementation of the Tax platform, scale Ruby/Rails and TypeScript/React systems, build APIs and tools for reliability and extensibility, integrate safe agentic AI guardrails, drive technical strategy and roadmap, improve incident response, and mentor engineers to deliver compliant, fault-tolerant systems.

As a Principal Software Engineer, design, build, and test scalable payroll and tax systems, lead technical efforts across teams, mentor engineers, and integrate AI solutions to enhance product efficiency.

Lead and build the signup-to-activation experience end-to-end for Gusto, inventing and shipping 0-to-1 onboarding flows that leverage AI/LLMs across web and messaging channels. Partner with Product, Design, and Data to prototype, measure, and iterate quickly, design reusable onboarding building blocks, provide technical direction and high-quality code, and mentor engineers to improve team standards and delivery velocity.

Lead design and delivery of Gusto's Commerce Platform components (catalog, promotions, subscriptions, entitlements). Own architecture, reliability, and performance; drive multi-quarter projects; partner with product, data science, and cross-functional teams; mentor engineers; and promote AI-augmented development and platform adoption to accelerate business impact.

The Principal Software Engineer will lead technical direction for Gusto's Money Group, focusing on systems architecture, service migration, mentoring engineers, and driving complex projects in fintech. Responsibilities include defining long-term vision and ensuring quality delivery across multiple teams.

The Senior Staff Software Engineer will lead the technical direction of Gusto's Commerce Platform, focusing on system architecture, project delivery, mentoring, and collaborating with product teams to enhance the platform's reliability and performance.