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Signify Technology Linkedin · Posted 2mo ago

Senior Full Stack Developer - AI Voice Tech

European Union

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🚀 Full Stack AI Engineer (German-Speaking)

Remote (Europe) | High-Growth AI Startup | Equity Included

💰€80k - €120k


I'm working with a fast-growing AI startup building cutting-edge voice technology that can handle full phone conversations, indistinguishable from humans.


In just over a year, they’ve scaled to 6,000+ customers and are adding €200k ARR per week. This is a genuine product-market-fit, high-growth environment. They’re now looking for a Full Stack AI Engineer to join at a critical stage and take end-to-end ownership of product development.


This isn’t a typical engineering role. You’ll operate as a true Product Engineer owning everything from:

  • Idea generation
  • Customer problem discovery
  • Rapid prototyping
  • Shipping production-ready features used by thousands


You’ll have full autonomy to decide what to build and how to build it.


🧠 What They’re Looking For

  • Node.js
  • TypeScript
  • NestJS
  • React
  • Experience or interest in LLMs / AI integrations (highly desirable)


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