Tropical Juice Mix Creation

I'm looking for an expert to create a powdered instant juice mix. The ideal candidate should have experience in flavor formulation and a strong understanding of ingredient interactions.

Requirements:
- Primary flavor: Tropical (e.g., pineapple, hibiscus,)
- No functional additives (vitamins, electrolytes, probiotics)
- Use of natural sweeteners only (e.g., Stevia)

Ideal Skills and Experience:
- Food science background
- Flavor development expertise
- Experience with natural sweeteners

Please provide samples of previous work if possible.