Data Scientist (Growth)
Viktor is hiring for Data Scientist (Growth) in Warsaw. Mid level. First seen October 21, 2026; open as of November 9, 2026. Jobs taken straight from company career pages — no aggregator in between.
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- Company
- Viktor
- Where
- Warsaw
- Level
- Mid
- First seen
- October 21, 2026
- Listed via
- Ashby
What the posting says
You'll work onsite in Warsaw alongside Fryderyk, Matt, the growth team and finance, reporting to Fryderyk initially. THE HARD PART Our customers haven't finished their lifetimes. Many cohorts are young, histories are incomplete, and some segments have little data. Meanwhile, new product surfaces change how customers use Viktor, expand and retain. A model that fits yesterday's customers may not predict tomorrow's. You need to distinguish durable signals from noise, estimate value before a cohort matures, and show how much confidence a decision deserves. Backtesting, calibration and…
Read more and apply on Viktor's site
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