E-commerce Data Analysis with R

I need an expert in R programming to analyze e-commerce transaction data. The goal is to derive insights on customer behavior and sales trends.

Key Tasks:
- Predict Customer Churn
- Predict Purchase Amount (Regression)
- Classify High and Low Spending Customers
- Analyze Seasonal Trends in Purchasing Patterns
- Forecast Future Purchasing Patterns (Time Series)

Requirements:
- Proficiency in R and R Studio
- Strong background in data analysis and machine learning
- Experience with e-commerce data is a plus

Please provide examples of similar work done.