Position: Middle/Senior DS

Company: X5 Group

Format: Full-time employment (40 hours per week).

Location: Remote work (but if desired, you can work from the office at Oasis Business Center, Moscow).

💡The ad-hoc analytics team from X5 Group (Pyaterochka, Perekrestok, Chizhik, etc.) is looking for experienced DS specialists!

🔬Why is it interesting to work with us?

Over 29 thousand stores, 50 million customers, petabytes of data – and all of this needs to be analyzed.

Every day we demonstrate that our supermarkets are actually a digital project where Big Data and a Data-Driven approach play a significant role.

You will be working in the stream of evaluating the financial effectiveness of investment initiatives.

🔭What will you be doing here?

• Designing and evaluating non-standard experiments through A/B testing (our platform handles the usual ones);
• End-to-end development of methodologies and tools for evaluating effects when classical A/B tests are not applicable;
• Conducting in-depth research to apply the best tools in the industry;
• Writing interesting articles based on the results of completed tasks and more.

😎You are a good fit for us if you:

• Have at least two years of experience in the DS field;
• Have a background in Causal Inference / econometrics (science, studies, work);
• Possess a basic understanding of financial metrics (EBITDA, IRR, NPV, Feasibility Study) and the logic of building financial models for investment projects;
• Are familiar with modern approaches to analyzing cross-sectional and panel data (Doubly Robust Estimators (AIPW), DiD, TWFE, IV);
• Can write clean and structured code in Python, know classical algorithms and data structures;
• Know SQL – can build optimal queries, familiarity with the Hadoop stack will be a plus;
• A/B tests, hypothesis generation and verification (experience with variance reduction, CUPED, linearization, and bucket methods will be a plus);
• Will be an advantage: experience with (docker, kubernetes, pyspark, kafka, postgres, airflow).

🎁What we offer:

• The opportunity to work remotely or in a hybrid format;
• Quarterly bonuses based on performance;
• A comfortable office near "Dobryninskaya" metro station / a convenient office with free parking near "Volgogradsky Prospekt" metro station / MCD "Kalitniki";
• Flexible working hours (starting at 8/9/10 AM) / Work schedule: 5/2, from 9:00 AM to 6:15 PM (on Fridays – until 5:00 PM);
• A comprehensive VHI package (including international travel and dental care), life and health insurance;
• Opportunities for learning and development at the company's expense;
• Motivation programs for speakers and authors;
• A great team, a warm atmosphere, and fun retrospectives with games and meme battles, as well as offline team-building events.