About Gusto

Gusto is a modern, online people platform that helps small businesses take care of their teams. On top of full-service payroll, Gusto offers health insurance, 401(k)s, expert HR, and team management tools. Today, Gusto offices in Denver, San Francisco, and New York serve more than 300,000 businesses nationwide.

Our mission is to create a world where work empowers a better life, and it starts right here at Gusto. That’s why we’re committed to building a collaborative and inclusive workplace, both physically and virtually. Learn more about our Total Rewards philosophy

About the Role:

We are looking for an Senior Engineer to join our Ruby Modularity team, responsible for continued improvement of the application architecture in some of our most important backend applications. This team designs, develops, tests, and maintains tools for modularization work and engages in projects that increase and deepen modularity and architectural quality, crucial to Gusto’s continued growth as a product development organization and company.

About the Team:

The charter of the Product Infrastructure team at Gusto is Developer Productivity. We strive to improve it through our work on the tools engineers use, the systems we create, and the organizational processes that drive engineering work. We hire technical experts who take a broad view of engineering focused impact and love lifting up their colleagues.

Here’s what you’ll do day-to-day:

  • Over the past years gusto has been contributing heavily to techniques of gradual modularization and Ruby at Scale.
  • This role works with those tools and the underlying principles to improve the application architecture of crucial applications in Gusto’s portfolio
  • Refactor existing code to remove technical debt
  • Foster an inclusive, collaborative, and high-performance culture
  • Collaborate with our other technical infrastructure engineering teams, product development teams and also data science, operations, product management and design teams to lead and own developing end to end product experiences for complex customer needs from initial planning, execution, to final delivery
  • Work with Leadership to help set priorities for both short term and long term roadmaps and to create accountability for progress on ongoing work

Here’s what we're looking for:

  • 10+ years of hands-on software development experience
  • 5+ years of  hands on experience with working on Ruby/, Rails, and with modularization techniques like libraries, packages, and gradual modularization
  • Experience refactoring and modularizing monolithic code into distinct, scalable services
  • Experience in leading large scope technical projects and driving engineering excellence
  • Passionate about creating memorable experiences for customers

Our cash compensation amount for this role is targeted at $190,000/yr to $205,000/yr in Denver & most remote locations, and $225,000/yr to $240,000/yr for San Francisco, New York & Seattle. 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.


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.

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Our customers come from all walks of life and so do we. We hire people from a wide variety of backgrounds, not just because it’s the right thing to do, but because it helps us to build better products, better serve our customers, and makes our company stronger. 

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