3D Model Creator for 3D Printing

I'm seeking a designer who can create a moderately detailed 3D models (I need 3 models) suitable for 3D printing wiithout supports (overhangs should be more than 35 degrees). The model should be delivered in STEP format.

I want to get similar model to https://www.makeronline.scom/en/model/Charming%20Bird%20Figurine/157391.html



Ideal Skills and Experience:
- Proficiency in 3D modeling software
- Experience in designing for 3D printing
- Knowledge of STEP file format
- Ability to create moderately detailed models