Senior AI Product Designer
Own end-to-end design of Harper, Hearth's AI digital employee for home improvement contractors. Drive user research, rapid experimentation, and AI interface patterns to deliver intuitive experiences for non-technical trades users.
What You'll Do
- Harper AI experience end-to-end: onboarding and activation flows, the Message Center / Stream UI, intent previewing and editing, and every AI-powered touchpoint across web, mobile, and messaging
- User research operations: run weekly rapid interviews with contractors, test prototypes in the field, and synthesize qualitative signals into product decisions
- AI design system and interaction patterns: build and maintain production-grade components for AI interfaces that reduce engineering ambiguity and accelerate the team
- Cross-functional translation: turn product outcomes into acceptance criteria, engineering tickets with required instrumentation events
- Experimentation engine: draft hypotheses, define success metrics, ship lightweight A/B and feature experiments, analyze impact, and iterate in days
Your First 90 Days
- Weeks 1–2: Audit the Harper UX end-to-end — onboarding funnel, Message Center, product demos. Deliver a prioritized list of 3 experiments with hypotheses, target metrics, and required engineering effort
- Month 1: Ship your first high-impact A/B or feature experiment with a measurement plan. Get in front of customers and deliver a customer insight that directly informs the roadmap
- Month 2: Scale experimentation cadence. Work closely with engineers and leadership to deliver on the product roadmap. Begin mapping the AI design system and deliver multiple explorations for team review
- Month 3: Stabilize the experimentation engine, formalize the design system, and establish the research and measurement rituals
Who You Are
- 3–7+ years of product design with a strong UX practice; shipped real products, run experiments, and can point to measurable business impact
- Experience designing AI, conversational, or voice interfaces
- Data fluent: can read Amplitude dashboards, define success metrics for experiments, and use quantitative results to make design decisions
- Builder velocity: move from problem to solution to shipped experiment in days; rapid prototyping is second nature
- Customer obsessed: energized by field research with contractors and non-technical blue-collar users
- Systems thinker: design consistent, scalable patterns across mobile, web, and messaging surfaces
- Strong communicator: express ideas crisply, run cross-functional workshops, and produce artifacts that engineering, sales, and leadership use
What We’re Looking For
- Experience designing conversational AI, voice UI, or chatbot experiences
- Background in SMB, blue-collar, or trades-adjacent product design
- Familiarity with mobile-first design for field workers and on-the-go use cases
- History of building and scaling design systems from scratch
- Experience with Twilio, messaging platforms, or real-time communication products
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