[Remote] Staff Software Engineer, Core Platforms

Note: The job is a remote job and is open to candidates in USA. Gusto is on a mission to grow the small business economy by providing essential services like payroll and HR. They are seeking a Staff Software Engineer to design and build core platform services that support their product teams and enhance user experiences.ResponsibilitiesDesign, build, and test Gusto core platform services – communications, reporting, dashboards, access, workflows, risk, payments, and compliance capabilities, among othersMentor other engineers to help solve some of the hardest technical problems out there in very complex domains and at a large scaleHelp scale one of the largest Ruby/Rails and Javascript/React applications in the worldCollaborate with our Product Engineering, Product Management, Data, and Design teams to understand customer pain points, come up with solutions, and then prototype, iterate, and launch dailyBuild platforms that engineering teams rely on, and trust to deliver products that our customers genuinely loveSkillsSuccessful applicants typically have 8+ years of software development experiencePassion for creating scalable, efficient platforms for usersExperience leveraging AI tools or systems to accelerate development, improve testing, and deliver new platform capabilitiesCuriosity and experimentation with emerging AI frameworks, applying and sharing best practices to evaluate and scale AI use safely across teamsExperience owning multi-quarter projects that solve complex engineering problems and make measurable user impact at scaleExperience with large scale refactors, performance and reliability issues, and a strong sense of ownership over all aspects of your platform areaAbility to mentor engineers to maximize their performance and impactExperience in, or interest working in, Ruby on RailsAppreciation for a collaborative, test-driven environmentAbility to build well-structured, maintainable, well-documented codeAbility to effectively communicate across engineering teams and with business stakeholdersBenefitsAll full-time employees receive competitive base pay, benefits, and equity (RSUs) — because everyone who helps build Gusto should share in its success.Stock equity is additional.Gusto has physical office spaces in Denver, San Francisco, and New York City.Employees who are based in those locations will be expected to work from the office on designated days approximately 2-3 days per week (or more depending on role).When approved to work from a location other than a Gusto office, a secure, reliable, and consistent internet connection is required.Company OverviewGusto is an HR and payroll platform that simplifies complex tasks, empowering businesses to focus on what matters most. It was founded in 2011, and is headquartered in San Francisco, California, USA, with a workforce of 1001-5000 employees. Its website is https://www.gusto.com.Company H1B SponsorshipGusto has a track record of offering H1B sponsorships, with 8 in 2026, 49 in 2025, 54 in 2024, 19 in 2023, 37 in 2022, 24 in 2021. Please note that this does not guarantee sponsorship for this specific role.