Nucleus is currently seeking a replacement.
Since helping to launch Nucleus three years ago, Martin has led the team responsible for implementing the business development strategy which has seen a total of 60 adviser firms become owner-users of the platform.
Chief executive officer David Ferguson says: “Martin has been instrumental in getting Nucleus to where it is today and we are extremely grateful for all his efforts.
“While we are all sad to see him go we understand his reasons and wish him all the best for the future.”
Martin adds: “I am very proud of what I have achieved and continue to be excited about where the Nucleus team can take the business.”