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ZAZalando

Principal Applied Scientist / Lounge by Zalando(m/w/x)

Berlin
Full-timeWith Home OfficeExperienced
AI/ML

Designing experimentation frameworks and analyzing complex A/B tests for a pan-European fashion e-commerce ecosystem. Ph.D. in Economics with expertise in causal inference methods required. 27-30 days holiday, up to 60% remote per week.

Requirements

  • Ph.D. in Economics with quantitative research methods emphasis
  • Expertise in experimentation and quasi-experimental methods (DML, difference-in-differences)
  • Strong scientific problem-solving skills
  • Clear communication of analytical insights
  • Proficiency in Python
  • Proficiency in SQL
  • Experience with Machine Learning methods
  • Experience with scikit-learn
  • Experience with PyTorch
  • Experience with Jupyter Notebooks
  • Experience with Airflow
  • Experience with Data Build Tool (DBT)
  • Experience with PySpark
  • Experience with Databricks
  • Experience with Git
  • Experience with estimation of heterogeneous effects (causal forests)
  • Regular use of AI-based analytical tools
  • Constant exploration of new AI developments

Tasks

  • Foster data-driven decision-making
  • Design experimentation frameworks
  • Analyze complex A/B tests
  • Serve as an expert on causal inference
  • Participate in research efforts impacting company strategy
  • Collaborate with applied scientists, data analysts, product managers, software developers, data engineers, and commercial stakeholders
  • Focus on key performance indicators (KPIs)
  • Conduct statistical power analysis
  • Implement variance reduction techniques
  • Design experiments for complex cases
  • Address Stable Unit Treatment Value Assumption (SUTVA) violations
  • Evaluate short-term and long-term effects
  • Apply quasi-experimental methods to observational data
  • Establish causal relationships for product development
  • Guide business decisions with economic modelling
  • Provide constructive scientific feedback
  • Coach junior colleagues
  • Set broad scientific roadmaps
  • Bring significant industry track record
  • Demonstrate scientific leadership

Work Experience

  • 2 years

Education

  • Doctoral / PhD

Languages

  • EnglishBusiness Fluent

Tools & Technologies

  • Python
  • SQL
  • Machine Learning
  • scikit-learn
  • PyTorch
  • Jupyter Notebooks
  • Airflow
  • Data Build Tool (DBT)
  • PySpark
  • Databricks
  • Git
  • Double Machine Learning (DML)
  • difference-in-differences
  • causal forests
  • AI-based analytical tools

Benefits

More Vacation Days

  • 27-30 days of holiday

Purpose-Driven Work

  • 2 paid volunteering days

Flexible Working

  • Hybrid working model
  • Up to 60% remote per week

Additional Allowances

  • Work from abroad allowance

Competitive Pay

  • Employee shares program

Corporate Discounts

  • Employee discounts

Other Benefits

  • Relocation assistance

Family Support

  • Family services

Healthcare & Fitness

  • Health and wellbeing options

Mental Health Support

  • Mental health support

Learning & Development

  • Training platform

Mentorship & Coaching

  • Biannual peer-to-peer review
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of Zalando and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.

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