Senior Data Scientist

September 8, 2026

Remote

Senior

Munich

Description

Constructor is a next‑generation platform for search and discovery in ecommerce, optimizing revenue, conversion and profit. The company builds its own AI‑powered search engine using transformers and generative LLMs and serves over 1 billion queries daily for major retailers.

Responsibilities

Design, run, and analyze A/B tests measuring impact on key business metrics like revenue, conversion rate, and profit
Apply statistical methods and machine learning to solve business and product problems
Develop a deep understanding of how our search, ranking, and personalization algorithms work, and how to evaluate and improve them
Analyze large‑scale behavioral data to generate insights and recommendations for customers and internal teams
Build analyses, models, and tools that help teams make better decisions
Communicate findings clearly to technical and business stakeholders

Requirements

Strong experience solving business problems using data science and statistics
Solid knowledge of SQL and experience working with large datasets
Strong Python skills for analysis and modeling using pandas, NumPy, scikit‑learn and visualization libraries
Deep understanding of A/B testing, experiment design, and statistical inference
Understanding of machine learning systems: how models are trained, evaluated, and tuned
Experience connecting model or algorithm performance to product funnels and business metrics
Familiarity with ranking, recommendations, or search relevance is a plus
Ability to communicate insights clearly to both technical and business audiences
Comfortable working independently with multiple stakeholders in a fast‑paced environment
Experience working in e‑commerce or with large‑scale user behavioral data
Experience in customer‑facing analytical work

Conditions

Fully remote work, choose where you live
Unlimited vacation time, minimum 3 weeks per year
Home office stipend provided
Apple laptops supplied to new employees
Annual training and development budget
Stock options in addition to base salary
Maternity and paternity leave for qualified employees

ecommerce

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