Staff Software Engineer (Tax Accounts)

• We’re looking for a staff software engineer to join Tax Accounts — the team whose job is to make the complexity of dealing with hundreds of tax agencies disappear
• We’re the steward of every Gusto customer’s employer and employee tax account data: the registrations, authorizations, rates, and setup that let us withhold, pay, and file correctly on their behalf
• Get it right and businesses stay compliant without thinking about it; get it wrong and it costs them real money and trust
• As a Staff Software Engineer on Tax Accounts, you’ll operate across the full product lifecycle: clean frontend code, reliable backend APIs and data models against a genuinely complex compliance domain, and the automation that keeps hundreds of thousands of accounts in sync with the agencies behind them
• If you want technical craft with far-reaching impact in our modern economy helping power the livelihoods of millions of small business employees — join us
• Design, build, and test the systems behind employer and employee tax accounts: agency registrations, power-of-attorney / third-party authorizations, tax notices, agency filings, and state/federal/employee tax setup across jurisdictions
• Build automation that requests and maintains access with tax agencies on the customer’s behalf — the bots, data exchanges, and agency-event pipelines that keep accounts, rates, and deposit schedules accurate and prevent failed filings
• Model complex, jurisdiction-specific compliance rules into maintainable systems, and own reliability, performance, and correctness in a domain where accuracy is non-negotiable
• Partner closely with Product, Design, Tax Operations, and PEO teams to turn customer and compliance pain into solutions — then prototype, iterate, and launch
• Mentor other engineers and help the team solve some of the hardest problems in a very complex domain, at large scale
• Build products that our customers genuinely love

Benefits

• Gender-affirming care and support
• Family care and support, including family planning and fertility benefits
• A variety of mental health resources
• Medical, dental, and vision insurance for employees and dependents
• Free meals and refreshments at the office (conversation and community is an added bonus!)
• Paid vacation, sick time, bereavement, and holidays, paid leaves, sabbatical, and more

• Comfort designing data models and APIs for a complex, rules-heavy domain (compliance, tax, payments, or similar) where edge cases and correctness matter
• Ability to communicate effectively across engineering teams and with business stakeholders
• Experience owning multi-quarter projects that solve complex engineering problems and make measurable customer impact at scale
• Significant software-development experience, typically 8+ years, with demonstrated staff-level technical leadership
• Experience building scalable solutions that eliminate customer pain, and a strong sense of ownership over reliability, performance, and correctness
• Ability to mentor engineers to maximize their performance and impact
• Experience leveraging AI tools or systems to accelerate development, improve testing, and deliver new capabilities — plus curiosity and experimentation with emerging AI frameworks, and a habit of sharing best practices to scale AI use safely across the team
• Ability to effectively communicate across engineering teams and with business stakeholders
• Ability to build well-structured, maintainable, well-documented code
• Appreciation for a collaborative, test-driven environment
• Experience in, or interest working in, Ruby on Rails
• 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