Staff Software Engineer

About Rosie

Rosie is reimagining care, for families & for caregivers. We created a new category of care: flexible, on-demand childcare and household management, bookable by the hour or in a weekly cadence, backed by a bench of vetted Pros who learn your family's rhythms.

The Role

You have the opportunity to disrupt and shape how families and caregivers operate in the new age. You'll build the core product interfaces that families interact with every day, make the foundational calls on architecture and tooling, and set the engineering culture for the entire company.

Rosie has three primary customers: families, Pros and the internal team. To run a simple two-sided labor marketplace at scale requires immense complexity behind-the-scenes. Rosie creates beautiful & simple interfaces across web, mobile apps and text message for families and Pros to interact, book and manage their care or jobs. Behind that simplicity is a mix of agents, LLMs, and software that you'll design, ship, and harden.

This is a rare seat: full-stack builder, product thinker, and AI researcher in one. Our north star is a product so good that managing a home & growing a career are effortless thanks to state-of-the-art AI with a deliberate human touch.

## Who You Are

• A builder at heart: You thrive on taking ideas from 0 → 1.
• Obsessed with growth: You set the bar unreasonably high.
• Driven by outcomes: You're willing to flex, adapt, and put in the work.
• Courageous: You run at resistance and find energy where others hear "no."
• Execution-first: You believe trust is earned by shipping beautiful, functional, and reliable products.
• Fast-moving: You thrive in speed and ambiguity, creating clarity instead of waiting for it.

## What You'll Do

• Build the core product: Own AI infrastructure and feature development end-to-end.
• Shape technical direction: Make foundational decisions on architecture, infrastructure, and tooling.
• Move fast: Ship experiments, iterate on feedback, balance speed with maintainability.
• Collaborate closely with the founding team across product, design, and growth.
• Ensure reliability: Build secure, scalable systems that families can trust.
• Lay the foundation for scale: Establish engineering best practices and culture. Eventually help build and lead the engineering team.

## Basic Qualifications

• 5+ years of professional full-stack & AI engineering experience (backend + frontend).
• Proven experience building production systems with modern frameworks.
• Hands-on experience building AI-powered product features — LLM and agentic workflows, prompt engineering, retrieval, and evals — alongside databases, APIs, and third-party integrations.
• Ability to work full-time, on-site/hybrid in Seattle, WA. If remote, able to travel at least once per month.
• Experience with React/Next.js, Typescript, Postgres, OpenAI / Anthropic, Inngest, Evals, Agentic AI.

Compensation

Salary + competitive equity for the founding team.

Apply on the career site