Build and own integrations between Gusto and third-party tools for accounting firms as a Staff Software Engineer.
Posted by employer 3 days ago
First seen on Joblaze 1 day ago
Last verified on the company career page 10 hours ago
Skills & Technologies
What you'll build
- Own and extend Gusto's existing third-party integrations
- Design and build reliable backend services
- Evaluate and help build new integration patterns
- Help define the technical approach and roadmap
- Mentor other engineers as the team scales
Must have
- 8+ years of professional software development experience
- Experience owning multi-quarter projects end-to-end
- Strong platform/application engineering background
Nice to have
- Ruby on Rails experience strongly preferred
- Experience with OAuth and third-party API integrations a plus
- Familiarity with AI agent protocols is a plus
Practical constraints
- Work from the office on designated days approximately 2-3 days per week
Role intensity
40% coding
AI in the day-to-day
AI is a fundamental part of how work gets done at Gusto; team members are expected to engage with AI tools relevant to their role.
Requirements
- Experience
- 8+ years
Not disclosed in this posting: visa sponsorship.
Benefits
Joblaze summary
In the role of Staff Software Engineer for Gusto Pro Integrations, the individual will focus on developing and enhancing integrations between Gusto and various third-party tools used by accounting firms. Proficiency in Ruby on Rails and experience with API integrations are essential, alongside a strong background in platform engineering. This position is ideal for seasoned engineers with over eight years of experience who thrive in ambiguous environments and can contribute to shaping the integration roadmap. The team is small and growing, emphasizing collaboration with Product, Design, and Data Science to ensure seamless user experiences.
Joblaze insights
- Listed yesterday — first seen on Joblaze October 11, 2026. Last confirmed on Gusto's careers page October 12, 2026.
- Salary band is in line with the typical range for Backend roles (median ~$180,000).
- Starts at or below all 17 comparable staff backend roles in United States that list Ruby on Rails we track (median $196,033 across 5 companies).
- Ruby on Rails appears in 5.9% of 304 comparable staff backend roles in United States; Sidekiq appears in 1.3% of 304 comparable staff backend roles in United States.
Quick facts
- Is the Staff Software Engineer, Gusto Pro Integrations role remote?
- It's hybrid — Gusto expects some on-site time in Denver, CO - Hybrid; New York, NY - Hybrid; San Francisco, CA - Hybrid.
- What's the salary range?
- Gusto lists $163,000–$204,000 for this role.
- How much experience is required?
- At least 8 years of relevant experience for this Staff Software Engineer, Gusto Pro Integrations role.
- Where is the role based?
- Gusto is hiring for this position in Denver, CO - Hybrid; New York, NY - Hybrid; San Francisco, CA - Hybrid.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: AI agent protocols, API, MCP, Ruby on Rails, Sidekiq.
- What seniority level is this role?
- Gusto targets staff-level candidates for this position.
- Is this full-time or contract?
- Full-time for this Staff Software Engineer, Gusto Pro Integrations role at Gusto.
From the original posting
About Gusto
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.
Standard company text repeated across Gusto's postings is omitted here.