Staff Software Engineer, Core Products

Gusto
New York, US
On-site

Who this role is best for

Aimed at mid-level full-stack engineers who thrive on technical craft with real-world impact in the small business economy, requiring 8+ years of experience and comfort with Ruby/Rails and Javascript/React.

Best fit for

  • Experienced full-stack engineers passionate about solving complex problems at scale.
    — “Help solve some of the hardest technical problems out there in very complex domains and at a large scale
  • Engineers who enjoy mentoring others and driving long-term project success.
    — “Mentor other engineers to help solve some of the hardest technical problems
  • Candidates who leverage AI tools to enhance development and product capabilities.
    — “Experience leveraging AI tools or systems to accelerate development, improve testing, and deliver new product capabilities

Things to consider

  • Requires two days of travel to a Gusto office for onboarding.
    — “two day travel to a Gusto office for onboarding is required
  • Hybrid work model with 2-3 days per week in-office for certain locations.
    — “expected to work from the office on designated days approximately 2-3 days per week

How to stand out

  • Showcase experience with large-scale refactors and performance improvements.
    — “Experience with large scale refactors, performance and reliability issues
  • Highlight projects where you owned multi-quarter initiatives with measurable impact.
    — “Experience owning multi-quarter projects that solve complex engineering problems and make measurable customer impact at scale
  • Demonstrate fluency with AI tools in your development process.
    — “Curiosity and experimentation with emerging AI frameworks
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · TeamLevel · Mid Level

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • launching new features
  • improving product reliability
  • enhancing user experience
Typical background
software-engineeringfull-stack-development

Skills & requirements

Required

Full-stack-developmentBackend-developmentFrontend-developmentAgile-developmentProduct-ownership

Preferred

Ai-toolsPerformance-optimization

Stack & domain

RubyRailsJavaScriptReactAi ToolsAi SystemsAi FrameworksLarge Scale RefactorsPerformance And Reliability IssuesTechnical CraftReal-world ImpactCustomer Pain PointsSolutionsPrototypingIterationLaunchingMentorshipOwnershipComplex Engineering ProblemsCustomer ImpactLarge ScaleComplex DomainsAi FluencyPayrollHealth Insurance401(k)sHrRetirementGusto MoneyGusto SoloGusto Pro

About the role

Original posting from Gusto via Greenhouse

 

About Gusto

At 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 our Total 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 Role:

We're looking for seasoned full-stack software engineers to join the teams behind Gusto's customer-facing products — the features and experiences that small business owners and their employees rely on every day.

As a Staff Software Engineer, you'll operate across the full product lifecycle: shaping features from early spec and design through to launch and long-term iteration. That means writing clean frontend code, designing and building reliable backend APIs, influencing product direction, and taking ownership of what happens after a feature ships. 

If you're drawn to work that combines technical craft with real-world impact — helping power the livelihoods of millions using Gusto products — join us!

Here’s what you’ll do day-to-day:

Design, build, and test Gusto core products such as Payroll, Benefits, HR, Retirement, Gusto Money, Gusto Solo, and Gusto Pro, among others

Mentor other engineers to help solve some of the hardest technical problems out there in very complex domains and at a large scale

Help scale one of the largest Ruby/Rails and Javascript/React applications in the world

Collaborate with our Product Management, Data, Design, and Platform Engineering teams to understand customer pain points, come up with solutions, and then prototype, iterate, and launch daily

Build products that our customers genuinely love

 

Here’s what we're looking for:

Successful applicants typically have 8+ years of software development experience

Experience building scalable solutions that eliminate customer pain; passion for creating memorable experiences for customers

Experience leveraging AI tools or systems to accelerate development, improve testing, and deliver new product capabilities

Curiosity and experimentation with emerging AI frameworks, applying and sharing best practices to evaluate and scale AI use safely across teams

Experience owning multi-quarter projects that solve complex engineering problems and make measurable customer impact at scale

Experience with large scale refactors, performance and reliability issues, and a strong sense of ownership over all aspects of your product area

Ability to mentor engineers to maximize their performance and impact

Please 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.

Source: Gusto careers (Greenhouse)

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