Need a Tableau Developer Urgently

I need a tableau developer for one data visualization work.
Below are the details:

Create a new Tableau workbook from the sample data source "Sample - Superstore". Analyze the available data, in particular using Tableau graphics, and propose a snowflake model for a relational datamart corresponding to this data. You must produce the following:
• Your snowflake diagram.
• An explanation presenting your overall approach, and explaining your choices regarding the disputed cases.
• Your Tableau workbook, comprising three graphical representations to support your justification. Your representations must be as clear as possible.

You can use Sample Superstore data file