Modelling:
3ds Max - modeling, unwrapping, baking, lighting
Zbrush - detailed sculpting, retopo, polypaint
Maya - Rigging
Texturing:
Photoshop - texturing, presentation, using render passes, color grading, ...
Substance painter - Texturing, PBR workflow
Engines:
Unreal - asset implementation, shaders, level design, level creation and decoration, lighting
Unity - asset implementation, shaders, level design, level creation and decoration, lighting