Staff Software Engineer, Unified Services Platform

About GustoAt Gusto, we're on a mission to grow the small business economy. We handle the hard stuff — payroll, health insurance, 401(k)s, and HR — so owners can focus on their craft and their customers. With teams in Denver, San Francisco, and New York, we support more than 500,000 small businesses nationwide and are building a workplace that reflects the people we serve.All full-time employees receive competitive base pay, benefits, and equity (RSUs) — because everyone who helps build Gusto should share in its success. Offer amounts are determined by role, level, and location. Learn more about ourTotal Rewards philosophy.AI is a fundamental part of how work gets done at Gusto. We expect all team members to actively engage with AI tools relevant to their role and grow their fluency as the technology evolves. AI experience requirements vary by role and will be assessed during the interview process.About the Team:You'll join the Application Engineering team, which supports the platforms we use to deliver exceptional Sales and CX interactions. Our platforms have tremendous scale, and the work we do here directly shapes how the rest of Gusto operates. We challenge the status quo, advocate for scalable technical solutions, and hold a high bar for what "great" looks like - while staying grounded in translating ambiguous requirements into real business value.Here’s what you’ll do day-to-day:Design, build, and maintain scalable Apex solutions on the Salesforce platform that support our Sales and CX teamsUse AI coding assistants (e.g., Claude Code or equivalent) throughout the development lifecycle to write, review, debug, and document codeOversee ongoing improvements to deployed features and measure their impactApply Salesforce platform architecture and change/release management best practices, using sf cli for deploymentsWrite well-structured, easily maintainable, and well-documented codeBuild, test, and debug reliable production systems at scale, ideally real-time, event-driven, or high-throughputContribute to codebases beyond Salesforce when the work calls for itHere’s what we're looking for:6+ years of professional software engineering experience, including 4+ years developing on the Salesforce platform in ApexSalesforce Platform Developer I and/or Application Architect certification(s)Strong understanding of Salesforce platform architecture, with experience using the sf CLI and Salesforce change/release management best practicesFluent, daily use of AI coding assistants (e.g., Claude Code or equivalent) across the development lifecycle — writing, reviewing, debugging, and documenting code — with strong judgment on when and how to apply themComfortable writing well-structured, maintainable, well-documented code, including in codebases outside of Salesforce (Ruby on Rails experience a plus)Proven track record building, testing, and debugging reliable production systems at scaleSkilled at translating ambiguous requirements into business value and advocating for scalable technical solutionsExperience in regulated industries preferredPlease note that a two day travel to a Gusto office for onboarding is required for this position. If you have any questions regarding this requirement, please share with your recruiter.Our cash compensation amount for this role is targeted at $163,000–$204,000 in Denver & most remote locations, and $197,000–$247,000 for San Francisco & New York. Stock equity is additional. Final offer amounts are determined by multiple factors including candidate experience and expertise and may vary from the amounts listed above.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). The same office expectations apply to all Symmetry roles, Gusto's subsidiary, whose physical office is in Scottsdale.Note: The San Francisco office expectations encompass both the San Francisco and San Jose metro areas. When approved to work from a location other than a Gusto office, a secure, reliable, and consistent internet connection is required. This includes non-office days for hybrid employees.Our customers come from all walks of life and so do we. We hire great people from a wide variety of backgrounds, not just because it's the right thing to do, but because it makes our company stronger. If you share our values and our enthusiasm for small businesses, you will find a home at Gusto. Gusto is proud to be an equal opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristic. Gusto considers qualified applicants with criminal histories, consistent with applicable federal, state and local law. Gusto is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. We want to see our candidates perform to the best of their ability. If you require a medical or religious accommodation at any time throughout your candidate journey, please fill out this form and a member of our team will get in touch with you.Gusto takes security and protection of your personal information very seriously. Please review our Fraudulent Activity Disclaimer.Personal information collected and processed as part of your Gusto application will be subject to Gusto's Applicant Privacy Notice.