I'm electronic engineer, i use Orcad Capture and Allegro PCB Designer Editor, i know signal integrity and EMC theory, I design pcb layout 2, 4 and 6 layers, I design pads and footprint 3D with Pad Designer, i know Orcad PsPice to simulate cirucits. I know Solidworks design 3D mechanical projects to simulate enclosures like aout pcb and case.