In 1999 graduated from Kharkiv National University of Internal Affairs with specialties "Science of Law" and "Management".
Worked in the Ministry of Interior of Ukraine from 1999 to 2005 year.
Worked as the Legal Adviser of the State Treasury of Ukraine since 2006 in Sloviansk city and Slovianskyi region.
Obtained the License to practice law No. 4040 on September 28, 2011.
The lawyer, Dmytro Marchenko, became famous after participation in the resonance case pursuant to the Articles 110 and 258-3 of the Criminal Code of Ukraine concerning Shtepa Nelia Ihorivna.
In addition to advocacy, he is engaged in economic activities, namely: he managed such enterprises as the Slaviansk High Voltage Insulators Works, the marble quarry of Donbasuholstroi LLC, the Regional Capital Construction Department.
Today he is the defender of Oharkov Serhii Serhiiovych, son of Shtepa Nelia Ihorivna