| 1997 – 1998 | research scientist / Laboratory of Precambrian and Cambrian Paleontology and Stratigraphy IPGG SB RAS |
| 1998 – 2012 | senior research scientist / Laboratory of Precambrian and Cambrian Paleontology and Stratigraphy IPGG SB RAS |
| 2012 – 2013 | senior research scientist / Laboratory of Paleozoic Stratigraphy and Paleontology IPGG SB RAS |
| 2022 – 2023 | head of laboratory / Laboratory of Paleozoic Stratigraphy and Paleontology ИНГГ СО РАН |
07.11.2025 The research focus on the Paleozoic (“old life”) era
14.03.2024 Silurian dendroid graptolites of unique 3D preservation found in the Gorny Altai