Greenhouse ·
contractSenior Staff Software Engineer, Gusto Agent & Partner Experiences (API)
Gusto · Denver, CO - Hybrid; New York, NY - Hybrid; San Francisco, CA - Hybrid
Gusto is a platform focused on supporting the small business economy by providing integrated payroll, health insurance, and HR services. As a Senior Staff Software Engineer for the Agent & Partner Experiences team, you will lead the technical development of the company's API platform, specifically focusing on how third-party developers and AI agents interact with payroll infrastructure. Your day-to-day responsibilities will involve hands-on coding in Ruby on Rails, designing robust API contracts, and ensuring the platform remains performant and reliable as it scales. You will act as a bridge between internal payroll systems and external partners, requiring you to solve complex technical challenges that span multiple domains. This role is well-suited for a seasoned engineer with over 12 years of experience who excels in platform architecture, enjoys mentoring other developers, and possesses the ability to translate business priorities into scalable technical solutions. You will be expected to maintain high standards for code quality and observability while actively engaging with AI tools to enhance the platform's capabilities.
Education
- Level: Bachelor's degree
Key Skills
Experience required
12-12 years experienceAbout the Role Senior Staff Software Engineer on the Agent & Partner Experiences team, responsible for technical leadership, influencing the team and broader organization, bridging API and AI, and building and scaling the platform. Responsibilities Identify and solve high‑impact problems across domains. Design API contracts and agent‑facing tools. Engage with developer‑customers and internal partners. Ship clean, tested, performant code. Provide technical guidance and mentoring. Maintain best practices for reliability and observability. Troubleshoot and resolve production issues. Requirements 12+ years professional software development experience. Technical ownership of organization‑wide initiatives. Expert in Ruby and Rails, experienced with large Rails codebases. Experience designing and building platforms and public‑facing APIs. Strong understanding of reliability and performance at scale. Proven mentoring and technical leadership abilities. Effective communication with business stakeholders.
Skills for this role
Required skills
Also mentioned in the listing
| Role | Senior Staff Software Engineer, Gusto Agent & Partner Experiences (API) |
|---|---|
| Company | Gusto |
| Location | Denver, CO - Hybrid; New York, NY - Hybrid; San Francisco, CA - Hybrid |
| Type | contract |
| Compensation | Not disclosed |
| Posted | 2026-10-16 |
| Deadline | Rolling |
Typical process for this type of role
A general guide — the exact steps for this specific listing may vary; check the original posting for details.
- 1ApplicationSubmit your resume through the apply link.
- 2ScreeningRecruiter reviews your background against the role.
- 3AssessmentA technical test, assignment, or coding round, depending on the role.
- 4Interview(s)One or more rounds with the hiring team.
- 5OfferOffer letter with compensation and start date.
Before you apply
0/4Senior Staff Software Engineer, Gusto Agent & Partner Experiences (API) at Gusto: frequently asked questions
- Who can apply for the Senior Staff Software Engineer, Gusto Agent & Partner Experiences (API) role at Gusto?
- The listing asks for Bachelor's degree; 12-12 years of experience.
- What skills does the Senior Staff Software Engineer, Gusto Agent & Partner Experiences (API) role require?
- The listing highlights Ruby, Rails, API design, Platform engineering, Observability. Show each of these in a project or past role on your resume.
- What is the salary for this role?
- Gusto has not stated compensation in the listing. Check the original posting or ask during the application process.
- Is the Senior Staff Software Engineer, Gusto Agent & Partner Experiences (API) position remote, hybrid or onsite?
- The listing marks this role as hybrid, with Denver, CO - Hybrid; New York, NY - Hybrid; San Francisco, CA - Hybrid as the location.
- What is the application deadline?
- Gusto has not listed a fixed deadline, so apply early in case the opening is filled.
- How do I apply for the Senior Staff Software Engineer, Gusto Agent & Partner Experiences (API) role?
- Use the Apply button on this page. It opens the original listing on job-boards.greenhouse.io, where you submit your application with the company.
More at Gusto
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