Data Transformation & Power BI Setup

I'm looking for an online coach to help with complex data transformation and Power BI dashboard creation for an online coaching platform. This person will build dashboard with me.

Key Tasks:
- Transform data from CSV/Excel files
- Data cleaning and validation
- Data aggregation and summarization
- Data merging and joining
- Develop a Power BI dashboard

Ideal Skills:
- Proficiency in Power BI
- Experience with data transformation
- Strong background in handling CSV/Excel files

Please share relevant experience and approach.