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Keystone (YC S25) is hiring engineer #1 to automate coding

About Keystone We're building AI-native error monitoring that automatically investigates production issues and generates code fixes. Think Sentry, but built from the ground up for a world where AI can actually understand your codebase, trace through logs, and tell you exactly what broke and how to fix it. We're starting here and expanding until we're the default tool for building product, period. Our mission is to free engineers from the drudgery of digging through logs, setting up systems, and debugging- so they can focus on understanding users and designing great products. We're in-person in SoMa, San Francisco. We raised a $5.2M seed from True Ventures, Twenty Two Ventures, Pear VC, and Ritual Capital- plus the founders of YC, Dropbox, Supabase, Eight Sleep, Graphite, Resend, RocketMoney, and more. Early design partners include teams at Perplexity and Lovable. About the Role You'd be the first engineering hire, working directly with me (the founder) to build the core product. You'll have more ownership and influence over the product, culture, and technical direction than you'd get almost anywhere else. Example projects: 2-week sprint to build a new product vertical from scratch Design a new interface for engineering workflows that wasn't possible until a model advancement that came out yesterday You might be a great fit if you: Have shipped products end-to-end (frontend to infra) and obsess over the details Work fast and comfortably with ambiguity- we're figuring things out as we go Get excited about hard problems at the intersection of AI and developer tools Want to be genuinely early, not "early at a 50-person series B" Stack: TypeScript, React (Next.js), Python, Postgres, Redis, AWS Comp & benefits: Top-of-market salary + significant equity, full health/dental/vision, all meals covered, equipment budget

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