Visio Process Flow Diagram Creation -- 2

I'm looking for a freelancer experienced in Visio to create a process flow diagram for me. The purpose of this diagram is to document an operational process. The target audience is primarily executives and managers, so the diagram needs to be clear, concise, and professionally presented.

Key requirements:
- Proficiency in Microsoft Visio
- Experience in creating process flow diagrams
- Understanding of operational processes
- Ability to present information in an executive-friendly manner

Please include examples of similar work in your proposal.