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Offer summary
(Summary generated by AI based on the full job description)
Project focuses on evaluation and validation of AI-agent outputs in a business context, with emphasis on language-model evaluation and measuring sales impact. Work involves Python, statistical analysis and experimental design, including causal attribution and tests for data leakage and uncertainty. Responsibilities include building cost and forecasting models, designing experiments and baselines, measuring accuracy and bias, collaborating with Finance on benefit validation, and producing evidence packs for business acceptance and risk review.
from: 13 November 2026
to: 13 December 2026
23 000 - 25 000 złgross/ mth.contract of employment (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
Python
Our requirements
- Around 4+ years in applied data science, statistics or analytics.
- Strong foundation in statistics, evaluation and experimental design.
- Experience with causal attribution and with testing models for leakage and uncertainty.
- Strong Python skills.
- Ability to explain statistical results to non-technical business and finance stakeholders.
- Fluent English.
- Experience evaluating language-model or AI-agent outputs.
- Experience in forecasting, pricing, cost modelling or marketing measurement.
- Experience working with Finance on benefit validation.
Your responsibilities
- Lead evaluation of each agent against known cases, working with business users such as buyers and marketing reviewers.
- Build and maintain statistical and cost models, with clearly stated uncertainty.
- Measure accuracy, bias and error rates, and check for data leakage.
- Design experiments and baselines. Measure value, including sales impact where it needs to be tested separately.
- Work with Finance to agree baselines and the benefit measurement method.
- Produce clear evidence packs that support business acceptance and independent risk review.
- Work with the Agent Engineers to feed test failures back into fixes.
What we offer
- Permanent employment contract.
- Salary of PLN 23 000 - 25 000 gross monthly
- 10% annual bonus
- Medicover private medical care.
- A choice between holiday subsidy and Multisport card funding.
- Life insurance.
- Christmas bonus of PLN 2,000.
Recruitment for
At Perrigo, we are driven by our mission to Makes Lives Better Through Trusted Health and Wellness Solutions, Accessible to All. We are proud to be a Top 10 player in the European Consumer Self-Care market and the largest U.S. store brand provider of over the counter and infant formula. Dedicated to providing The Best Self-Care for Everyone, we are the people behind the brands you trust. We are Opill®, Compeed®, Solpadeine®, NiQuitin®, and many more. We Are Perrigo. We are committed to enhancing the wellbeing of our colleagues and consumers alike. We pride ourselves on fostering an inclusive, collaborative culture where each person can experience a sense of belonging
AI Applied Data Scientist
23k–25k zł / mth. (CoE)
I apply to:
Michael Page
Warszawa, Masovian
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