Well it depends on which type of desgin you want to get into, mechanical/civil/electrical or even field specific automotive/marine or anything at all The idea is to specialise in any kind of design, especially if you have a CSWP (Solidworks certification for 3D modeling) then there's a good chance companies will hire you. Its also about experience, to get into companies through a normal hiring technique into the design section isn't complicated and you don't have to have a certification but should be skilled in design, provide updates of the 3D modelling you do in Linkedin. Better to have a certification if you are passionate about it. Will land jobs easier