He is a graduate of VI Liceum Ogólnokształcące im. Tadeusza Reytana w Warszawie and a 2000 summa cum laude graduate from the Faculty of Management, Warsaw University. In 2004, he earned a Ph.D. in management (as subfield of economics) from the Kozminski University, under the supervision of Andrzej Koźmiński. In 2014, he received his Professor's title from the President of Poland. He heads MINDS (Management in Networked and Digital Societies) department at Kozminski University.[3]
In 2019, he was elected to the Polish Academy of Sciences, as the youngest member in social sciences and humanities in history,[4] and in 2022 he became its youngest vice-president.[1] Since 2016 he is a faculty associate at the Berkman Klein Center for Internet & Society at Harvard University.
Since 2011, Jemielniak has been a non-paid member of the board of the Copernicus Science Centre in Warsaw.[11] Since 2002 he has been a non-paid program board member at Nida Foundation, supporting English education of teachers in small towns and villages.[12] Since 2016, he has been supporting the Equality Parade (Warsaw) and has been the honorary committee member.[13] In 1998–2004, he was an ED of Collegium Invisibile, one of several non-profits created by the Open Society Foundations to foster social sciences and humanities excellence in post-Soviet regions.
He has researched and published books in the field of work-space studies about IT professionals[14][15] and other knowledge workers.[16] He has also published articles on organisational changes in higher education facilities[17] and is an active participant in the debate on the reform of higher education in Poland.[18][19][20][21] An experienced ethnographer and digital ethnographer, more recently he has been doing social data science, and advocating mixing digital ethnography with data science. He devised a mixed-method of Thick Big Data, described in a book published in 2020 by Oxford University Press.[22]
Within the Wikimedia movement, Jemielniak is involved in the Polish Wikipedia, where he has served in various roles, including as an administrator, bureaucrat and check-user.[23] He was also a steward for all Wikimedia projects.[23] He is a member of the Polish chapter of Wikimedia, but has never held any roles or position in it.
Dariusz has voiced his support for the enabling of paid editing of Wikipedia under certain constraints,[23] and has been vocal about reducing the bureaucracy within projects.[24][25] He is an advocate of wider involvement of women and academics in the Wikimedia movement,[26][27][28][29] and the need to start actively promoting its use and development in academia.[30]
From 2003 to 2015, he founded, developed, and sold ling.pl, the largest online dictionary in Poland.[42] In 2013 he co-founded InstaLing, a free educational platform for language educators used by over 200 thousand people.[43] Since 2016, he has been a board member and a vice-chair of Escola S.A.,[44] a public traded company developing mobile apps and one of 100 fastest growing companies according to Clutch[45] and Financial Times.[46]
Jemielniak, Dariusz and Kociatkiewicz, Jerzy (ed.) (2008), Management Practices in High-tech Environments, Hershey-New York: Information Science Reference, ISBN978-1-60566-176-6.
Jemielniak, Dariusz and Kociatkiewicz, Jerzy (ed.) (2009), Handbook of Research on Knowledge-Intensive Organizations, Hershey-New York: Information Science Reference, ISBN978-1-60566-176-6.
Jemielniak, Dariusz and Marks, Abigail (ed.) (2012), Managing Dynamic Technology-Oriented Businesses: High-Tech Organizations and Workplaces, Hershey-New York: Information Science Reference, ISBN978-1-4666-1836-7.
Koźmiński, Andrzej K. and Jemielniak, Dariusz (2013) The New Principles of Management, Frankfurt – New York – Oxford: Peter Lang, ISBN978-3-631-64252-8.
Koźmiński, Andrzej K., Jemielniak, Dariusz, Jendrych, Elżbieta, and Wiśniewska, Halina (2014) Management matters, Warszawa: Wolters KluwerISBN9788326431807.
Jemielniak, Dariusz (ed.) (2014) Legal Professions at the Crossroads, New York: Peter Lang ISBN978-3-631-64385-3.
^Collins, Samuel Gerald (July 2015). "Common Knowledge? An Ethnography of Wikipedia by Dariusz Jemielniak. Stanford, CA: Stanford University Press, 2014". Anthropology of Work Review. 36 (1): 47–48. doi:10.1111/awr.12062.
^Bourne, Dorota Joanna (2016). "All That We Know Dariusz Jemielniak Common knowledge? An ethnography of Wikipedia. (Stanford University Press 2014)". European Management Review. 13 (1): 69–72. doi:10.1111/emre.12067. ISSN1740-4762. S2CID147155614.