4mo ago

Senior Data Scientist - Personalization & Predictions

SlovakiaSlovakiasenior
Data ScientistMachine Learning EngineerData
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Quick Summary

Key Responsibilities

propensity and churn, contextual bandits, autosegmentation, uplift and incrementality. Design the evaluation, not just the model. Offline metrics, backtests,

Requirements Summary

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.

Technical Tools
Data ScientistMachine Learning EngineerData
Bloomreach is building the world’s premier agentic platform for personalization.We’re revolutionizing how businesses connect with their customers, building and deploying AI agents to personalize the entire customer journey.
  • 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.
And we're building all of that on the intelligence of a single AI engine — Loomi — so that personalization isn't only autonomous…it's also consistent.From retail to financial services, hospitality to gaming, businesses use Bloomreach to drive higher growth and lasting loyalty. We power personalization for more than 1,400 global brands, including American Eagle, Sonepar, and Pandora.

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.

#LI-Remote

Location & Eligibility

Where is the job
Slovakia
On-site within the country
Who can apply
Open to applicants worldwide

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

freshnesssource trustcontent trustemployer trust

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.

Employees
750
Founded
2009
View company profile
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Senior Data Scientist - Personalization & Predictions