CAD Design for Modular Tool Inserts

I'm seeking a skilled CAD designer to create custom, 3D-printable tool inserts for the ToughBuilt StackTech modular system. The inserts should be practical for everyday tool storage and easy to print.

Requirements:
- CAD design for inserts accommodating both hand tools (screwdrivers, wrenches, pliers, cutters, measuring tools) and power tool accessories (drill bits, sanding discs, cutting blades)
- 3D-printable models (preferably STL/STEP files)
- Optimized for FDM printing (stronger infill areas, clean design for PLA/PLA+, PETG)
- Collaboration to refine dimensions and layout for efficient tool storage

Ideal Skills and Experience:
- Proficiency in CAD software
- Experience with 3D printing and design optimization
- Knowledge of tool storage solutions and requirements