PowerPoint Presentation Rework

I need a graphic designer to rework our investor presentation into an easily editable PowerPoint format. The current presentation was generated through an online app, which has resulted in inconsistent formatting and difficulties in editing.

IMPORTANT: WE WANT THE DESIGNER TO WORK ENTIRELY IN POWERPOINT ORIGINALLY -- NOT A CONVERSION TO POWERPOINT

Requirements:
- Corporate and professional style
- Rework needed on:
- Text formatting
- Images and graphics
- Slide layout

Ideal Skills and Experience:
- Proficiency in PowerPoint
- Strong graphic design skills
- Experience with corporate presentation design
- Attention to detail and consistency

Please provide samples of similar work.