Founding Engineer

About the role

Bloomy is an AI tutor and curriculum for K–12 students. Our student users are learning approximately 2x faster in early pilots, and students and teachers alike love our product. This is a full-time, in-person role in San Francisco, California.

We diagnose students’ skill gaps, map out a personalized learning path, and then have an AI tutor teach them. The AI learns how each student learns, increasing the efficiency of its teaching—and their learning.

Responsibilities

• Ship a feature or fix to production in your first week and watch real students in real classrooms use it the next school day.
• Get acquainted with the React/TypeScript app, Supabase backend, content pipeline, and the agent fleets that feed it.
• Take ownership of your first fleet: write the spec, build the harness, set the QA gate, and start shipping through it.
• Design the roadmap with the founder: about 50% shipping product across the stack, 25% building and running agent infrastructure, and 25% talking to teachers, students, and districts—and turning what you hear into the roadmap.
• Build key systems including:
  • The data flywheel: close the loop between telemetry and instruction itself for every answer, retry, AI-tutor conversation, and other interaction.
  • Agent orchestration as a first-class engineering problem: build better harnesses, evals, and verification so that a dozen concurrent agents produce work you’d trust in front of a classroom.
  • Whatever schools need next: today it’s tools for students and teachers, but the surface area in a school district is enormous.

Requirements

• 5+ years shipping products that real end users touch daily, with opinions about what makes them good.
• High-agency: can take ambiguous feedback and turn it into shipped product without waiting for a spec.
• Expert-level with AI coding tools and uses them to move dramatically faster—without outsourcing judgment to them.
• Gets excited, not exhausted, by the idea of managing a dozen concurrent agents.
• Wants tight feedback loops with real users, some of whom are eleven.
• High schlep tolerance—roster CSV imports, school-device performance quirks, and school-specific customization are part of the job and part of why we win.
• Cares about measurable learning outcomes, not just engagement metrics.

Preferred experience

• TypeScript, React, and Postgres. Our stack is React 18, Vite, Tailwind, shadcn/ui, Supabase, TanStack Query, and Vercel.
• LLMs in production: agents, evals, tool use, and context management.
• Building codebases and pipelines designed to be worked on by agents.
• Event telemetry, analytics, or experimentation systems.
• EdTech experience is genuinely not required.

Benefits

• $175,000–$200,000 annual salary.
• 1.5%–2.0% equity (founding-engineer package with meaningful ownership from day one).

About the company

Bloomy is AI-native. The product was built from February to April 2026, piloted with 500 students across 6 schools from April to June, and accepted into Y Combinator in June. ARR has roughly doubled every two weeks since then, with thousands of students expected to use the product this fall. Bloomy is also the first EdTech company to go through YC in the past five batches.

The founder started as a seventh-grade English teacher, built the driver acquisition engine at Lyft, pursued entrepreneurial ventures while earning an MBA at Stanford, and built AI agents and workflows at McKinsey. They believe education is where AI can have the largest positive impact on society.