Top Engineering Jobs in San Francisco, CA

Architect and build native iOS and Android financial products using SwiftUI, Jetpack Compose, and GraphQL. Lead mobile architecture, infrastructure, testing, release pipelines, and multi-quarter initiatives while applying AI workflows. Collaborate cross-functionally in a regulated banking environment, resolve ambiguous technical problems, maintain performance and security, and mentor engineers across both platforms.

Design, build, test, and scale Gusto’s payments infrastructure and platform. Make architectural decisions focused on fault tolerance, scalability, and modularity; modernize Ruby/Rails and TypeScript/React systems; collaborate across engineering, product, design, data science, and operations; deliver software supporting millions of businesses; and mentor fellow engineers.

Design, build, test, and operate Gusto core customer-facing products across frontend and backend. Own multi-quarter projects, scale Ruby/Rails and JavaScript/React systems, mentor engineers, collaborate with product, data, design, and platform teams, and iterate on features that deliver measurable customer impact.

Lead architecture and delivery of Gusto's Commerce Platform (product catalog, promotion engine, subscription, entitlements). Partner with product, data science, and cross-functional teams to drive large, multi-quarter platform projects, ensure reliability and SLOs, mentor engineers, and promote AI-augmented development and platform adoption.

Design, build, and maintain scalable Salesforce Apex solutions supporting Sales and Customer Experience teams. Use AI coding assistants throughout development, apply Salesforce architecture and release-management practices, deploy with sf CLI, and build reliable production systems at scale. Improve deployed features, measure impact, document code, and contribute beyond Salesforce when needed. Translate ambiguous requirements into scalable technical solutions and business value.

The Principal Engineer will lead technical direction across multiple teams, design architecture for financial systems, mentor engineers, and drive multi-year transformations in the Money Group.

Lead the technical design and architecture of Gusto's Commerce Platform, mentoring engineers and ensuring service reliability while collaborating across teams.

As a Staff Software Engineer, you'll design, build, and test Gusto's core platform services, mentor engineers, and collaborate with various teams to solve complex engineering problems.

Lead full‑stack engineering work on tax experiences: design, build, test, and operate scalable systems for tax collection, payment, and filing. Drive technical strategy, mentor engineers, collaborate cross-functionally, prioritize long-term architecture, and apply AI tools to improve developer productivity and customer workflows.

Lead full-stack development for employer and employee tax account systems: design reliable backend APIs and data models, build automation and agency-integration pipelines, model jurisdiction-specific compliance rules, mentor engineers, partner with product and operations, and deliver scalable, test-driven solutions that ensure tax accuracy and reliability at scale.