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:
As a Staff Software Engineer on Gusto Pro Integrations, you'll build and own integrations between Gusto and the third-party tools accounting firms already use to run their practice. The team maintains a growing portfolio of integrations today (including our Bookkeeping integrations), and we expect that portfolio to keep expanding as the team grows what "integrations" means for Gusto Pro. You'll work hands-on across the stack (Ruby on Rails, Sidekiq), including evaluating both traditional API integrations and emerging AI agent protocols like MCP (Model Context Protocol), while partnering closely with Product, Design, and Data Science to make sure every integration fits naturally into how accountants actually work. This is a high-ownership role on a small, growing team: the Integrations roadmap ahead isn't fully defined yet, and you'll have real input into what gets built next.
About the Team:
The Gusto Pro Integrations team builds and maintains integrations between Gusto and the third-party software used by accounting firms — including our existing Bookkeeping integrations, with more added over time. We expect the set of integrations we own to keep growing, across the various tools and platforms accountants already rely on. We work closely with Gusto Pro's other teams to deliver a seamless experience for accounting professionals.
Here’s what you’ll do day-to-day:
- Own and extend Gusto's existing third-party integrations and help build out new ones as the portfolio grows
- Design and build reliable backend services (Ruby on Rails, Sidekiq) that sync data between Gusto and partner platforms
- Evaluate and help build new integration patterns — including AI agent protocols like MCP — as we expand beyond traditional API integrations
- Help define the technical approach and roadmap as the Integrations domain grows
- Partner with Product, Design, and Data Science to validate accountant workflows and iterate based on feedback
- Participate in code review and help set the technical bar for a team that's still establishing its engineering practices
- Mentor other engineers as the team scales
Here’s what we're looking for:
- 8+ years of professional software development experience
- Experience owning multi-quarter projects end-to-end — scoping, planning, execution, stakeholder management, and launch
- Strong platform/application engineering background: services, APIs, third-party integrations, data flows, observability
- Comfortable operating in an ambiguous, early-stage domain where the roadmap isn't fully written yet
- Ruby on Rails experience strongly preferred; experience with OAuth and third-party API integrations a plus
- Familiarity with AI agent protocols (e.g., MCP) or agentic integration patterns is a plus
- Excellent communication skills — able to explain technical tradeoffs to both engineers and cross-functional partners
- AI-native mindset, with AI tools naturally embedded in your daily engineering workflow (code generation, review, debugging, documentation)
Our cash compensation amount for this role is targeted at $163,000–$204,000 in Denver, and $197,000–$247,000 for San Francisco, Seattle & 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.
At Gusto, we don't use titles the traditional way, as a signal of rank or hierarchy. Instead, our titles describe two things at once — your craft (what you do, e.g. Engineering, Design) and your scope of ownership (what you're accountable for) — which is why you'll see something like "Head of X" instead of a rank word like "Director" that tells you neither. Because of this, the title on this posting may look different from what you'd expect based on the scope and seniority of the role, and from how similar roles are typically titled elsewhere. If you have questions about how this role compares to your current title or level, your recruiter can help translate.
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.
Reliable, consistent presence: We expect regular and predictable attendance, whether you're working in-office, hybrid, or fully remote, so that you stay closely connected to your team, customers, and stakeholders in real time and ensure colleagues and customers receive the timely support and responsiveness they deserve.
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.
Skills Required
- 8+ years of professional software development experience
- Experience owning multi-quarter projects end-to-end, including scoping, planning, execution, stakeholder management, and launch
- Strong platform or application engineering background involving services, APIs, third-party integrations, data flows, and observability
- Ability to work effectively in an ambiguous, early-stage domain
- Strong communication skills and ability to explain technical tradeoffs to engineers and cross-functional partners
- AI-native mindset with AI tools embedded in daily engineering workflows
- Ruby on Rails experience
- Experience with OAuth and third-party API integrations
- Familiarity with AI agent protocols such as MCP or agentic integration patterns
What the Team is Saying
Gusto Compensation & Benefits Highlights
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Healthcare Strength — Health coverage is described as robust and inclusive, with multiple plan choices, relatively low employee premiums for some plans, and offerings like mental-health support and gender‑affirming care. Coverage extends to dependents and is consistently portrayed as a strong part of the package.
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Leave & Time Off Breadth — Time away includes paid vacation, sick leave, holidays, bereavement, various paid leaves, and sabbaticals, with some roles using flexible or unlimited PTO. Usage of multiple weeks off annually is described for certain teams, reinforcing the breadth in practice.
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Parental & Family Support — Family-forming benefits such as fertility support and adoption assistance, alongside robust parental leave, are highlighted. Inclusive care elements and supportive resources around family needs are emphasized as part of the core offering.
Gusto Insights
What We Do
Gusto is a modern, online small business 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 400,000 businesses. 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.
Why Work With Us
We help small businesses—the backbone of the economy—thrive. Everything we do ladders up to empowering entrepreneurs and supporting their teams. Gusto empowers builders at every level to take initiative and make things better. You'll be solving meaningful challenges that shape the future of work.
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Hybrid Workspace
Employees engage in a combination of remote and on-site work.
We’ve built an inclusive, connected culture—no matter where you live. Whether near an office or remote, you’ll find opportunities to connect, grow, and belong. Employees work from the office on 2 designated days per week.
