Staff Software Engineer, Tax Accounts

Responsibilities

• 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.

Requirements

• Significant software-development experience, typically 8+ years, with demonstrated staff-level technical leadership.
• Experience owning multi-quarter projects that solve complex engineering problems and make measurable customer impact at scale.
• Experience building scalable solutions that eliminate customer pain, and a strong sense of ownership over reliability, performance, and correctness.
• Comfort designing data models and APIs for a complex, rules-heavy domain (compliance, tax, payments, or similar) where edge cases and correctness matter.
• 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 mentor engineers to maximize their performance and impact.
• Ability to communicate effectively across engineering teams and with business stakeholders.

Nice-to-Haves

• Experience in, or interest working in, Ruby on Rails.
• Appreciation for a collaborative, test-driven environment.
• Ability to build well-structured, maintainable, well-documented code.
• Ability to effectively communicate across engineering teams and with business stakeholders.

Compensation

• Cash compensation 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.