Excel Math Calculation Expert

I'm seeking an Excel specialist to assist with advanced math calculations.

Key Requirements:
- Expertise in advanced Excel formulas (macros, dynamic arrays).
- Experience with statistical, financial, or engineering calculations.
- Ability to integrate Excel sheets with software or databases is a plus.

Ideal Skills:
- Advanced Excel proficiency.
- Strong mathematical and analytical skills.
- Experience with data integration and manipulation.

Please provide examples of previous work and relevant experience.