Senior Data Scientist

Who we are

We make a web-based inventory and purchasing system used by independent restaurants, breweries and small food manufacturers. Our main product is a payroll and timekeeping app for hourly workforces, sold by subscription and supported from Sofia.

The role

Steading Data is looking for a Senior Data Scientist to join a small, steady team. Expect messy, real data and a fair amount of time on feature engineering and validation. You can work from home anywhere in Bulgaria. We have no office requirement. Normal working hours, Monday to Friday. Please make sure you have a quiet place to work and a solid internet connection.

What you'll work on

• Translate vague business questions into problems the data can actually answer.
• Validate model performance and document assumptions and limitations.
• Review peers' analyses for statistical correctness.
• Segment customers and build churn and lifetime value models.
• Estimate causal effects with difference-in-differences, propensity matching or regression discontinuity.
• Work with ML engineers to move models into production and monitor drift.

About you

• 6+ years of applied data science experience.
• Familiarity with Git and working in shared codebases.
• Experience building and validating machine learning models on real business data.
• Solid grasp of statistical inference, regression and experimental design.
• MS or PhD in statistics, economics, computer science, physics or another quantitative field, or a BS plus equivalent experience.
• Comfort with Jupyter, VS Code or Databricks notebooks.

Also helpful

• Bayesian methods with PyMC or Stan.
• Pricing or marketing mix modelling.

What you get

• Private medical care.
• Multisport card.
• Life insurance.
• Flexible hours.

Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Steading Data.