CAD Design Modification for Shelf Bracket

I need a skilled CAD professional to alter an existing wall shelf bracket design. The job should take only an hour or two.

Requirements:
- Adjust dimensions
- Modify shape
- Work from an original CAD file I will provide

Ideal Skills and Experience:
- Proficiency in CAD software
- Experience with shelf bracket designs
- Attention to detail and precision

Please provide a portfolio with relevant work.