Senior Data Scientist - Personalization & Predictions
Quick Summary
propensity and churn, contextual bandits, autosegmentation, uplift and incrementality. Design the evaluation, not just the model. Offline metrics, backtests,
Culture: A great deal of freedom and trust. At Bloomreach we don’t clock in and out, and we have neither corporate rules nor long approval processes.
- We're taking autonomous search mainstream, making product discovery more intuitive and conversational for customers, and more profitable for businesses.
- We’re making conversational shopping a reality, connecting every shopper with tailored guidance and product expertise — available on demand, at every touchpoint in their journey.
- We're designing the future of autonomous marketing, taking the work out of workflows, and reclaiming the creative, strategic, and customer-first work marketers were always meant to do.
You'd be joining the Artificial Intelligence team. We own the algorithmic core of the platform: Predictions, Contextual Personalization, contextual bandits, autosegmentation, and the agentic workflows behind Loomi. We work with behavioural data at terabyte scale, across 1,400+ customers, in production, every day. We are currently allowing flexibility for our employees to work from anywhere for the respective region (Central & Eastern Europe) or we are happy to meet you in our offices in Bratislava (Slovakia) or Brno, Prague (Czechia) on a full-time basis.
Responsibilities
~1 min read- →Causal inference and uplift modelling — separating who converts because of an intervention from who would have converted anyway.
- →Contextual bandits, sequential decision-making, or off-policy evaluation.
- →Ranking, recommendation or information retrieval.
- →LLM evaluation, or applied work with the GenAI stack.
If this position doesn't suit you, but you know someone who might be a great fit, share it - we will be very grateful!
Any unsolicited resumes/candidate profiles submitted through our website or to personal email accounts of employees of Bloomreach are considered property of Bloomreach and are not subject to payment of agency fees.
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Location & Eligibility
Listing Details
- Posted
- May 26, 2026
- First seen
- May 26, 2026
- Last seen
- October 8, 2026
Posting Health
- Days active
- 134
- Repost count
- 0
- Trust Level
- 31%
- Scored at
- October 8, 2026
Signal breakdown
Bloomreach is a cloud-based e-commerce experience platform specializing in marketing automation, product discovery, and content management systems, using AI to personalize customer experiences.
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