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Cellbyte

Founding Engineer, AI

Munich
Python LLM RAG
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Description

Founding Engineer AI - Data Pipelines

Location: Munich

Department: Software

Location Type: IN_OFFICE

Employment Type: FULL_TIME

About Cellbyte

At Cellbyte, we’re building an AI-native platform to help pharma companies launch new drugs worldwide. Cellbyte empowers pharma commercial teams to cut through complexity, analyze previously fragmented data in seconds, and automate high-stakes workflows.

In just a few months, we’ve gone from early pilots to being trusted by global pharma leaders, closing enterprise deals, and scaling profitably with double-digit month-over-month growth. We build fast and iterate closely with customers to make something people want.

You’ll be joining a fast-growing startup at the exciting intersection of AI and Life Sciences. We're backed by Y Combinator, and have recently raised a Seed round from top-tier investors to fuel our next phase of global expansion. Life is too short not to build something truly impactful, so join us on our mission to accelerate access to life-saving medicines.


About the role


In short: Own the end-to-end intelligence pipeline - from raw data to trusted AI systems

  • Architect and ship LLM-powered extraction, agentic workflows, and RAG systems.
  • Own ETL and data architecture end-to-end.
  • Design evaluation, validation, and governance for high-stakes pharma data.
  • Drive resolution of complex, high-impact technical challenges.
  • Make foundational product decisions that scale with the company.
  • Work directly with customers and founders to solve real-world problems.


You might be a fit if…

  • You have 3+ years of experience building production systems in Python.
  • You’ve worked across AI systems and data infrastructure.
  • Succeed in environments defined by change, ambiguity, and ownership
  • You enjoy turning messy reality into clean, reliable systems.


What you can expect…

  • A small, talent-dense team working in person in Munich.
  • An opportunity to tackle meaningful, complex problems alongside ambitious teammates who challenge and support each other to grow.
  • A fast-moving, high-ownership environment where excellence, creativity, and resourcefulness are the standard - not the exception.
  • Firsthand experience in building and scaling a startup - perfect for anyone who wants to become a founder down the line.
  • A competitive salary plus equity compensation, along with perks like Urban Sports Club, Bike-Leasing, and more.
  • A cozy office, centrally located in Munich.

Cellbyte
Cellbyte

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