Fullstack Engineer

About Phoebe

Phoebe is building AI coordination layer for in-home care, one of the one of the largest labor markets in the country. We’ve grown from $0 to $800k+ ARR in 4 months with zero churn. We’re backed by great investors like Slow, Quiet, Roar, and Moxxie.

What you’ll do

• Build voice and SMS agents to automate this 24/7 logistics industry end-to-end
• Design and improve our LLM orchestration layer - prompt engineering, tool use, context management, and evaluation
• Build internal tooling so our ops team can monitor agent performance, handle edge cases, and onboard new customers faster
• Improve reliability and observability across our voice and messaging infrastructure
• Ship features end-to-end: data model to API to UI

Our tech

• React / TypeScript / Vite on the frontend
• FastAPI / Python on the backend
• Postgres (RDS)
• Twilio for voice and SMS
• LLMs throughout
• AWS
• Linear, Notion

You’re a good fit if

• You’re a strong generalist who can work across the stack
• You stay on the cutting edge of AI dev workflows and love using coding agents to automate engineering, observability, and the entire development workflow.
• You ship fast and iterate based on real usage
• You’re comfortable with ambiguity and figuring things out as you go
• You’ve worked with LLMs in production (or are eager to)
• You want to be early at a company that’s growing very quickly
• You have 2+ years of professional engineering experience

What we offer

• Interesting, high-leverage work at a company growing very fast
• $180k+ base salary with above-market equity
• Small team where your work ships to customers immediately
• In-person in NYC (Chinatown / LES) - we work in the same room
• Multiple second-time founders to learn from - Justin (CEO) sold Bayes (YC S19) to Airtable. Dave built and sold Kamana, an app for travel nurses.