1. Oct 2009 - Oct 2013 Researcher Scientific-Technological Centre of Organic and Pharmaceutical Chemistry NAS Armenia 2. Nov 2012 -Sep 2014 Analyst Analytical laboratory of Scientific centre of drug and medical technology expertise CJSC 3. Sep 2014-2018 First Class Analyst Analytical laboratory of Scientific centre of drug and medical technology expertise CJSC 4. Sep 2016-present Lecturer Department Pharmaceutical chemistry and pharmacognosy YSU, Institute of Pharmacy 5. July 2022- present Associate Professor Department Pharmaceutical chemistry and pharmacognosy YSU, Institute of Pharmacy 6. Mart 2018-Sep 2022 Senior Analyst Analytical laboratory of "scientific centre of drugs and medical technology expertise CJSC 7. February 2021-January 2022 Researcher Laboratory for Quality Control of Medicines of the Institute of Pharmacy, YSU 8. Sep 2022-April 2023 Esco Pharm LLC Head of R&D 9. June 2023-february 2024 Reflabpharm LLC Head of QCL 10. April 2024-December 2024 Pharmatech CJSC Head of QCL 11. April 2025 -present Junior researcher Scientific-Technological Centre of Organic and Pharmaceutical Chemistry NAS Armenia