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Sr. Staff Software Engineer, Payroll and Tax

Gusto

$191,000 - $275,000
Sep 3, 2025
San Francisco, CA, US • Denver, CO, US • New York, NY, US • Seattle, WA, US • Washington, DC, US • Remote, US
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Gusto is looking to solve the problem of building and scaling its payroll system to support millions of people and businesses.

Requirements

  • Experience in designing and developing robust, distributed systems using multiple general-purpose programming languages
  • Experience influencing and guiding the work of multiple teams on scaling, refactoring, and optimizing legacy products
  • Experience architecting, building, and testing large-scale production level code
  • Aptitude and interest in bringing clarity and simplicity to complex and ambiguous problems
  • Ability to communicate technical complexity and help facilitate informed tradeoffs
  • Experience building fault-tolerant, mission-critical software
  • Experience with Ruby on Rails, Typescript, and React is a bonus

Responsibilities

  • Design, build, and test the foundation that supports compliant payroll for millions of people
  • Help scale one of the largest Ruby/Rails and TypeScript/React applications in the world
  • Collaborate on complex and ambiguous problems with partnerships from Engineering, Product Management, Design, Data Science, Compliance, Operations, and other cross-functional teams
  • Build the software platform that powers multiple 1st and 3rd party products and serves millions of businesses
  • Mentor and grow fellow engineers working to create holistic and scalable solutions
  • Drive the product development process from concept to launch, delivering delightful products that make payroll, taxes, and compliance simple and easy
  • Improve the productivity and happiness of our teams with the services, tools, and APIs you build

Other

  • Successful applicants have at least 12+ years of experience
  • Travel to Gusto’s Denver office for onboarding is required for this position
  • Employees who are based in Denver, San Francisco, and New York City will be expected to work from the office on designated days approximately 2-3 days per week (or more depending on role)
  • A secure, reliable, and consistent internet connection is required when working from a location other than a Gusto office