| 2024 | Postdoctoral fellow, University of Zurich |
| 2020-2024 | PhD student, University of Zurich (co-supervised by Hanna Kokko, University of Mainz) |
| 2018-2020 | MSc student, Ecology and Evolution, Jagiellonian University, Poland |
| 2016-2018 | Research assistant, Ukrainian Bat Rehabilitation Center |
| 2012-2016 | BSc student, Zoology and Animal Ecology, Karazin Kharkiv National University, Ukraine |
| 2019-2020 | NCN Program Sonata Bis 6, Jagiellonian University, Project Participant |
| 2018-2020 | Visegrad Foundation Scholarship Program, Jagiellonian University, Study on a Master Program |
| 2017 | DAAD, Hamburg and Greifswald Universities, Study Visit by Group of Students |
Kovalov V, Kokko H. 2023. Fertility signalling games: should males obey the signal? Philosophical Transactions of the Royal Society B 378: 20210499. doi: 10.1098/rstb.2021.0499
Kovalov V, Kokko H. 2022. Selection for male stamina can help explain costly displays with cost-minimizing female choice. Behavioral Ecology and Sociobiology 76: 69. doi: 10.1007/s00265-022-03172-y