Vincent Lunny is to leave his role as compliance officer after nearly three years at the Scottish Football Association, the governing body has confirmed.
He will leave the Association in September to progress his legal career by training to become an advocate.
The Scottish FA will look to employ a new compliance officer in the near future.
"The last three years have flown by - the fastest three years of my life," said Lunny on the Scottish FA website.
"It has been a real privilege to have worked at the Scottish FA and it has been a tremendous experience.
"I've thoroughly enjoyed my time here and in Scottish football but I am also looking forward to progressing my legal career.
"The process of becoming an advocate started back in 2005 for me, and I just completed my entrance exams in February.
"I now have nine months of training ahead of me, commencing in October, and I am looking forward to the challenges that lie ahead."
Lunny joined the Scottish FA from the Crown Office and Procurator Fiscal Service in October 2011 as its first-ever compliance officer.
Previously he was employed as a legal officer for the United Nations' International Criminal Tribunal for the former Yugoslavia in The Hague, where he handled war crimes prosecutions.