Software solution with a programming design in place:
Any software development designer plays important roles. Designer first understand software requirement and understand software architecture and deploying the environments. After designed understand he/she has to explain complete process requirement to developer or project manager or project leaders.
In case if the requirement of software designer fails to understand properly whole software development will goes wrong shape. So software design is key person and in later stage any modifications to software development he is responsible to give solutions.
So as conclusion software designer is key roles in software development.