Product Engineer
Full-time
Remote
Flint is reimagining how students learn with AI. We're building the core teaching and learning platform for K–12 schools — one that delivers personalized learning at scale while making teachers' lives easier, not harder.
We’ve been heads-down for the past two years and now work with 200+ schools across the U.S. and around the world.
We’re backed by Y Combinator (S23) and led by a lean, fast-moving team. You’ll join at the ground floor, working directly with our CTO (ex-Googler) and a small group of engineers to ship ambitious, thoughtful products that power real classrooms.
🛠 What you’ll do
We’re in the middle of a major product revamp. As a Product Engineer, you’ll:
Build and ship core features that teachers and students rely on every day
Own full-stack implementation — from database to UI to AI infra
Care about how the product feels in classrooms, not just that it works
Influence how we build — from technical decisions to product quality and team culture
⚙️ Our stack
TypeScript + Next.js on Vercel
PostgreSQL on Supabase
Claude Sonnet 4 (and GPT-4o for multimodality)
✅ You might be a fit if you...
Are proficient in TypeScript and SQL — but still choose to vibe code
Care deeply about product feel and think from the user's perspective
Love learning from and collaborating with peers
Continuously seek ways to improve your productivity
Are hungry to grow into a world-class individual contributor
Are excited about shaping the future of AI-powered learning
Are NYC-based (hybrid) or open to remote work in U.S. hours
🚀 Why join now?
Massive impact. Own high-leverage features and see the impact in real classrooms
Fast growth. Work with a tight-knit team, ship fast, and level up quickly — with raises tied to your growth (typically twice a year)
Strong benefits. Competitive salary, generous equity, health/dental/vision insurance, and a home office stipend
Right timing. With AI, this is the moment to reshape classrooms and make personalized learning real
📬 Interested?
Shoot me an email at jinseo@flintk12.com with:
The project you're most proud of — and why
Your experience with vibe coding
Recent random thoughts
Your resume
Looking forward to hearing from you.
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