Copilot for product teams

Founding Engineer

$100K - $150K / 0.30% - 1.00%
US / Remote (US)
Job Type
6+ years
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Yana Welinder
Yana Welinder

About the role

Join our team to disrupt how products are built 🚀

Product development is broken: dev teams rush to build, while valuable user feedback gets lost in the shuffle of App Store reviews, support tickets, user interviews, and sales calls.

Kraftful copilot amplifies user voices, turning overlooked feedback into actionable insights and transforming frustrated users into an engaged community that rallies behind your product.

Since our launch earlier this year, we’ve been on a crazy ride:

  • Tens of thousands of product builders have embraced Kraftful
  • Innovators at top tech companies like Meta, Google, Netflix, and more rely on us
  • Global brands, car manufacturers, public agencies, financial institutions, and even cities trust our solution
  • The feedback from Kraftful users is that our product is a “game-changer”

To fuel our growth, we’re looking for passionate engineers ready to make an impact.

This isn’t just another job - it’s an opportunity to be a founding member of a rocketship poised to redefine the future of product development.


  • Design, develop, test and support features for our web and backend applications
  • Work with GPT-4, ChatGPT API, and other large language models (LLMs)
  • Adopt or invent tools to help scale our engineering efforts
  • Tackle various challenges that arise in an early-stage startup


  • BA/BS degree (or equivalent)
  • 6+ years of experience building production software in a team environment
  • Excellent interpersonal skills, including writing, speaking, and listening
  • Fearlessness in taking on new challenges with potentially unclear solutions
  • Commitment to delighting customers
  • Flexibility in a constantly changing environment
  • Curiosity to become an expert in the rapidly evolving world of LLMs

Our tech stack:

  • React
  • Tailwind
  • PostgreSQL and Prisma
  • GPT-4
  • ChatGPT API
  • BullMQ
  • Redis

Kraftful is backed by Y Combinator, Precursor Ventures, F7 Ventures, Leadout Capital, Google, Samsung Next, Lukas Biewald (Founder/CEO Weights & Biases), Manu Sharma (Founder/CEO LabelBox), and other top investors.

Recruiters: we only want to hear from applicants. Emails from recruiters will be marked as spam.

About Kraftful

At Kraftful, we're building the copilot for product managers and other product builders. Our mission is to help product folks leverage GPT-4 and ChatGPT API to listen to users at scale and actively involve them in the development process.

As one of the inaugural alpha users of GPT-3, we built first prototype of Kraftful copilot in early 2020. As LLMs advanced, we launched our first GPT-powered feature in 2021 and ultimately pivoted our company to a complete LLM solution for product builders in 2023, seeing incredible traction.

We’re a team that puts users first. We make hard, pragmatic decisions. Constant iteration is at the core of our product and company. Empathy is our superpower.

Team Size:6
Location:San Francisco
Yana Welinder
Yana Welinder