Junior Data Scientist, Remote

We run a marketplace with over 300,000 active sellers and fulfillment centres in four regions. Product reviews happen on Thursdays, with demos of whatever shipped that week.

The position:

We are adding a Junior Data Scientist, Remote to our operations team. The operations team works directly with product and finance. You'll design experiments, build forecasts and explain the results. This is a full-time remote role. We use an employer of record in Poland, so you get a proper employment contract, not a freelance agreement. Expect to work a schedule that overlaps with US Eastern business hours until about noon ET. We use Slack, Notion and Google Meet. Cameras on for team calls.

Day to day:

• Partner with data engineering on feature tables and data quality.
• Validate model performance and document assumptions and limitations.
• Estimate causal effects with difference-in-differences, propensity matching or regression discontinuity.
• Package reusable code instead of leaving it in one-off notebooks.
• Develop time series forecasts with Prophet, statsmodels or gradient-boosted approaches.

What you need:

• 0-2 years of applied data science experience.
• MS or PhD in statistics, economics, computer science, physics or another quantitative field, or a BS plus equivalent experience.
• Ability to communicate uncertainty and tradeoffs to non-technical audiences.
• Comfort with Jupyter, VS Code or Databricks notebooks.

Preferred qualifications:

• Pricing or marketing mix modelling.
• MLflow or another experiment tracking tool.

Salary: PLN 13,000 - PLN 15,500 monthly

What you get:

• Public holidays observed per your country.
• Health insurance through our employer-of-record partner.
• Paid sick days.
• Wellness allowance.
• Co-working space stipend.
• 24 days paid time off.
• Flexible hours.

Start: Immediately.

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