Colin Pyle, who has been advising the First Minister on economics and business for the last year, has been appointed head of development. He will be tasked with developing and communicating the economic case for independence.
He said: “I am delighted to be taking up this position as we enter an extremely exciting and vitally important period in Scotland’s future.
“I have greatly enjoyed my time working for the Scottish Government and the First Minister and now I am looking forward with great enthusiasm to the challenge that lies ahead.”
Yes Scotland chief executive Blair Jenkins said: “To have been able to attract someone of his calibre, experience and know-how is a tremendous boost.”