CareerPlanGet AI match score →

Frontend Full Stack Staff Software Engineer, AI Platform Experiences

United States - New York, NY💼 Full-time💰 $163,000–$163,000🗓 2026-06-25 → 2026-07-31

Core

Building Gus, Gusto's AI-powered assistant, and scalable platform infrastructure enabling AI-native experiences across web, mobile, voice, and email channels for small businesses.

Role type

Staff Full Stack Software Engineer (AI Platform)

Builds

Gus (AI assistant), self-serve patterns for product teams, and scalable Ruby/Rails and React applications.

Domain

SaaS / Small Business HR / AI Platform

Deliverable

product features

Required skills

Ruby on Rails, React, GraphQL, system architecture, scalability, prompt engineering, A/B testing, cross-functional collaboration, mentorship, product ownership.

Preferred skills

AI platform development, orchestration frameworks, evaluation systems, prompt systems.

Technologies

Ruby, Rails, React, GraphQL, AI orchestration tools.

Responsibilities

Architect and build technologies supporting AI experiences; create self-serve patterns for product teams; collaborate on prompt engineering and escalation logic; mentor engineers on AI and platform challenges; scale large Ruby/Rails and React applications; launch customer-facing features end-to-end.

Seniority

Staff, high-impact IC with mentorship

Sourced via greenhouse · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.
Apply on Greenhouse ↗