- 2018/04 - 現在 The Open University of Japan
- 2013/04 - 現在 Tohoku University, Graduate School of Environmental Studies Professor
- 2013/04 - 現在 Tohoku University, Center for Northeast Asian Studies Professor
- 2024/04 - 2026/03 Tohoku University Center for Northeast Asian Studies
- 2022/08 - 2026/03 北海道立北方民族博物館
- 2024/04 - 2024/09 Waseda University Faculty of Letters, Arts and Sciences
- 2022/09 - 2022/11 University of Lapland Arctic Centre Visiting Professor
- 2018/04 - 2022/03 Tohoku University Special Advisor for President (Research)
- 2017/04 - 2021/03 Tohoku University, Center for Northeast Asian Studies Director
- 2002/04 - 2015/03 Tohoku University The Faculty of Arts and Letters Part-time lecturer
- 2012/04 - 2013/03 Research Institute for Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies Fellow
- 2003/04 - 2013/03 Tohoku University, Graduate School of Environmental Studies Associate Professor
- 2000/10 - 2013/03 Tohoku University Center for Northeast Asian Studies Associate Professor
- 2009/03 - 2010/03 Hokkaido Museum of Northern Peoples Fellow
- 2004/04 - 2008/03 National Museum of Ethnology Visiting Associate Professor
- 2003/10 - 2004/09 Scott Polar Research Institute, Cambridge University Visiting Scholar
- 1998/04 - 2000/09 Tokyo Metropolitan University School of Humanities Assistant Professor
- 1997/04 - 1998/03 Japan Society for Promotion of Science Research Fellow
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生態人類学会
, Japanese Society of Folklore
, International Arctic Social Science Association
, Japanese Society of Cultural Anthropology