Staff Software Engineer (Growth, Revenue Enablement)

Join Gusto's Growth team as a Staff Software Engineer, where you'll lead the development of AI-powered customer acquisition, onboarding, and lifecycle engagement experiences. This role involves full product lifecycle management, from concept to launch and long-term ownership in production. You'll focus on building an AI Voice Agent for customer onboarding and scaling AI-driven email experiences. Collaborate with cross-functional teams, establish engineering patterns for applied AI development, and mentor other engineers.

• Design, build, and operate AI-powered Growth experiences across onboarding and lifecycle engagement, with a focus on conversational and communication-driven product surfaces.
• Own the technical strategy and implementation for an AI Voice Agent that helps onboard customers, including the product workflows, backend integrations, safety controls, and evaluation loops needed to make the experience reliable in production.
• Build and scale AI-driven email systems across the funnel using ACE, including generation workflows, orchestration, experimentation, quality controls, and iteration based on product feedback and business outcomes.
• 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!
• Experience owning multi-quarter initiatives that solve ambiguous engineering problems and produce measurable business and customer impact
• Experience in Growth-related product areas such as onboarding, communications, workflow automation, CRM, lifecycle marketing, or adjacent customer journey systems
• Successful applicants typically have 8+ years of software development experience building and shipping customer-facing product experiences at scale
• Experience building full-stack systems, including frontend applications, backend APIs, and production services with clear ownership after launch
• Strong applied AI fluency, including experience with prompt design, tool integration, conversational experiences, content generation systems, or evaluation-driven iteration
• Ability to collaborate effectively across engineering and business stakeholders, especially in product areas where technical decisions directly affect customer experience and funnel performance
• Strong product and engineering judgment, with the ability to balance experimentation speed with quality, reliability, and long-term maintainability
• A track record of mentoring engineers and helping teams scale their impact
• Appreciation for a collaborative, test-driven environment
• Ability to effectively communicate across engineering teams and with business stakeholders
• Please note that travel to Gusto's office for onboarding is required for this position. If you have any questions regarding this requirement, please share with your recruiter
• Experience in, or interest working in, Ruby on Rails
• Ability to build well-structured, maintainable, well-documented code