3h ago

Product Engineer (Growth)

Berlin, Germany

$90k-$160k / year

full-time Hybridai-ml

🛠 Tech Stack

💼 About This Role

You'll join the Langfuse team to build growth experiments that drive adoption of our open-source LLM observability platform. Your work directly impacts top-of-funnel, activation, and expansion metrics. You'll have the autonomy to run big bets and shape outcomes using real user data.

🎯 What You'll Do

  • Maintain data stack (Posthog, BigQuery, DBT, Metabase) for user behavior insights
  • Ship onboarding improvements and experiment with signup flows
  • Build growth loops like Langfuse Wrapped or public prompt library
  • Integrate with hot topics (e.g., OpenClaw) and write about it

📋 Requirements

  • Drive to learn fresh things and experiment on many topics
  • A hang for business and product-led growth vision
  • Experience in full-stack development (FE and BE)
  • SQL skills for analytics

✨ Nice to Have

  • Experience with devtools / OSS ecosystems and developer-centric GTM
  • Taste for UX / Design
  • Familiarity with AI/LLM Engineering

🎁 Benefits & Perks

  • 🏖️ Flexible remote work with one week per month in Berlin office
  • 💰 Equity in a fast-growing company backed by YC, Lightspeed, and General Catalyst
  • 📈 Outsized impact on exponential growth curve
  • Fast hiring process (< 7 days to offer)

📨 Hiring Process

Full process to offer letter in less than 7 days.

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