Aryeetey began his career at the bench as a District Magistrate Grade II in April 1971. and he served in that capacity until 2009 when he was appointed Justice of the
Supreme Court of Ghana. While on the bench, he participated in a number of conferences and workshops, some of which include; African Programme on American Legal Institution and Jurisprudence in the
United States, Operation Cross Roads and Commonwealth Magistrates, and Judges Association Workshop in
The Gambia. Justice Aryeetey also served on and chaired various boards and associations. He was a member of the Judges and Magistrates Association and also served as Chairman of Maranatha University College Board. Aside from serving on the bench, Aryeetey worked in academia. He was a lecturer for the Career Magistrates Programme teaching Judicial Ethics and an examiner for the final year Practical Advocacy course at the
Ghana School of Law. ==Appointment==