Power BI one to one Consultation/Guidance -- 2

I am seeking a Power BI expert who can provide one-to-one consultation and guidance on DAX calculations. We need to implement to Filter Pie chart based on the logged in user and based on date range when they are part on a team.

Specific areas of guidance needed:
- DAX calculations

Existing Power BI reports or dashboards:
- Yes, I have existing reports and dashboards, but I need help improving them

Proficiency level with Power BI:
- Intermediate

Ideal skills and experience for the job:
- Strong expertise in Power BI
- In-depth knowledge of DAX calculations
- Experience in improving existing Power BI reports and dashboards
- Ability to provide one-to-one consultation and guidance