Stefan Hahn

S

Senior Data Scientist at Onyx HQ · NLP · transformers, information retrieval

Onyx HQ
Berlin, Germany · CET (UTC+1)
5+ years experience
ETH Zurich
English, German, Spanish
Open to work
Messaging unavailable

Overview

Based in Berlin. I work on NLP at Onyx HQ. Wrote the metric definitions the leadership team reviews every week. Replaced 47 hand-built dashboards with one metrics layer people trust. Previously at UniCredit. Most at home with Python and evaluation.

Good reasons to reach out
  • Roles in NLP
  • Questions about NLP
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  • Survey or panel invitations
  • Courses and coaching offers
  • Generic networking requests

Answers in batches on Fridays

Skills
information retrievaltransformersPyTorchevaluationPython
Open to workLooking for a role
closes in 3 months

Next role: Data Scientist in logistics, Berlin or hybrid

Target roles
Data Scientist
Level
Senior
Industries
Climate tech, E-commerce
Work mode
On-site
Available
90 days notice
Work authorization
Authorized to work in Germany
What I'm looking for
Scope to lead NLP work, with a manager who gives direct feedback.
Not interested in
Crypto

5 years in NLP. Strongest at information retrieval and Python. Available immediately.

Berlin, Germany · remote OKpytorchinformation retrievalpython
Open

Experience

  1. Senior Data Scientist
    Nov 2023 - Present
    Onyx HQ · 2 yr 11 mo · Full-time · Berlin, Germany
    • Built the language models now used in 12 product decisions a quarter.
    • Wrote the metric definitions the leadership team reviews every week.
    • Taught SQL to 91 non-analysts.
  2. Data Scientist
    Nov 2021 - Nov 2023
    UniCredit · 2 yr · Full-time · Berlin, Germany
    • Taught SQL to 125 non-analysts.
    • Replaced 72 hand-built dashboards with one metrics layer people trust.

References

No references yet.

Education

  1. ETH Zurich
    MSc, Physics
    2021 - 2023
  2. École Polytechnique
    Ingénieur, Physics
    2016 - 2020

Details

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