Junior Data Scientist

More than 11,200 employees work on the product, from search ranking to fraud detection. Traffic during holiday peaks can reach ten times normal levels, and the platform is built for it.

Role overview:

This is a new role. The team has doubled in size over the past year. Velvetset needs someone comfortable with both statistics and production code. This hire will own our demand forecasting models and the process for keeping them accurate as conditions change. Our headquarters is in Madrid, and about a third of the team works remotely from other countries. This is a long-term contractor role, paid monthly in USD. Working hours overlap with Central European Time.

Duties:

• Validate model performance and document assumptions and limitations
• Translate vague business questions into problems the data can actually answer
• Package reusable code instead of leaving it in one-off notebooks
• Segment customers and build churn and lifetime value models
• Present findings to product, marketing and finance leaders with clear recommendations

Required qualifications:

• Comfort with Jupyter, VS Code or Databricks notebooks
• Data visualization in matplotlib, seaborn, Plotly or a BI tool
• Solid grasp of statistical inference, regression and experimental design
• Familiarity with Git and working in shared codebases
• Ability to communicate uncertainty and tradeoffs to non-technical audiences

Preferred:

• Pricing or marketing mix modelling
• MLflow or another experiment tracking tool
• Causal inference beyond A/B testing
• Published research or strong Kaggle results

Rate: $2,300 - $3,100/month

Compensation and benefits:

• Paid time off
• Flexible hours
• Long-term engagement
• Monthly internet allowance

Candidates must be eligible to work in India.

Duration: 9 months. Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Velvetset S.L..