Education

From 1981 to 1986, he studied at the inpatient department of the YSU Faculty of Law.

Work experience

From 1986 to 1988, he worked as an investigator in the Oktyabrskaya Interdistrict Prosecutor's Office.
From 1988 to 1991, he worked as an investigator in the Prosecutor's office of the Arabkir district of Yerevan.
From 1991 to 1995, he worked as an assistant prosecutor of the Arabkir district.
From 1995 to 1996, he worked as an assistant prosecutor in the Myasnikyansky district Prosecutor's Office.
From 1996 to 1999, he worked as a judge in the Echmiadzin District People's Court.
From 1999 to 2008, he worked as a judge in the Court of first instance of the Armavir region.
From 2008 to 2009 he worked as a judge of the Yerevan Civil Court:
On January 15, 2009, by Decree of the President of the Republic of Armenia, he was appointed a judge of the Civil and Administrative Chamber of the Court of Cassation of the Republic of Armenia and held this position until 2023.
Tigran Petrosyan specializes more in civil, labor, family, tax legislation of the Republic of Armenia, civil and administrative proceedings, as well as the Law of the Republic of Armenia "on confiscation of property of illegal origin".
Conducts a legal examination and issues a conclusion in all these areas.