# Marek Stelmasik > Polish programmer, Wikipedian **Wikidata**: [Q110659290](https://www.wikidata.org/wiki/Q110659290) **Source**: https://4ort.xyz/entity/marek-stelmasik ## Summary Marek Stelmasik is a Polish programmer and software engineer affiliated with IBM, recognized for his extensive involvement in the Wikimedia movement. He is a graduate of the Warsaw University of Technology and served as a long-term board member and treasurer for Wikimedia Poland. Stelmasik contributes to Wikimedia projects under the username "masti." ## Biography * **Born:** April 23, 1965 * **Nationality:** Poland * **Education:** Warsaw University of Technology * **Known for:** Software engineering and leadership within Wikimedia Poland * **Employer(s):** IBM * **Field(s):** Software development, Computer industry ## Contributions Marek Stelmasik has contributed to the technology sector and the open-knowledge movement through a combination of professional engineering roles and volunteer governance. Professionally, he is associated with IBM, a major multinational technology corporation, where he works as a programmer and software engineer. His academic background at the Warsaw University of Technology provided the foundation for his career in software development. In the realm of public knowledge, Stelmasik has played a significant role in the administration of Wikimedia Poland. He served as a board member of the organization from 2010 to 2012. Following this term, he assumed the role of treasurer, a position he held for eight years from 2012 to 2020. In this capacity, he was responsible for the financial oversight of the chapter, supporting its mission to disseminate free knowledge. He is an active Wikipedian with the username "masti" and participates in cross-border initiatives, such as the Belarusian Wikipedia Day in Poland in 2013. He is proficient in Polish, English, German, and Russian, which facilitates his collaboration on international projects. ## FAQs ### Q: What is Marek Stelmasik's role at IBM? A: Marek Stelmasik is listed as a programmer and software engineer for IBM, a major technology corporation. ### Q: What positions has Marek Stelmasik held within Wikimedia Poland? A: He served as a board member from 2010 to 2012 and subsequently served as the organization's treasurer from 2012 to 2020. ### Q: What languages does Marek Stelmasik speak? A: According to his profile, he speaks, writes, or signs Polish, English, German, and Russian. ## Why They Matter Marek Stelmasik represents a vital intersection between professional technical expertise and civic engagement in the digital age. His decade-long tenure in leadership roles at Wikimedia Poland—first as a board member and later as treasurer—provided stability and financial governance to the organization during a critical period of its growth. By applying skills honed as a software engineer at IBM and an alumnus of the Warsaw University of Technology, he helped bridge the gap between the corporate tech sector and the non-profit open-source community. His participation in events like the Belarusian Wikipedia Day highlights his commitment to supporting information accessibility across cultural and political boundaries. Without contributors like Stelmasik, who dedicate professional discipline to volunteer organizations, the infrastructure of free knowledge projects would lack necessary operational maturity. ## Notable For * **Corporate Career:** Employment as a programmer and software engineer at IBM. * **Wikimedia Leadership:** Serving as the treasurer of Wikimedia Poland from 2012 to 2020. * **Academic Background:** Alumni status at the Warsaw University of Technology. * **Community Involvement:** Participation in the 2013 Belarusian Wikipedia Day in Poland. * **Polyglot:** Proficiency in four languages: Polish, English, German, and Russian. ## Body ### Personal Background and Education Marek Stelmasik is a Polish citizen born on April 23, 1965. He was educated at the Warsaw University of Technology, a prominent technical university located in Warsaw, Poland. His educational background positioned him for a career in the software industry. ### Professional Career Stelmasik is a practitioner of software engineering and computer programming. He is professionally affiliated with IBM (International Business Machines Corporation), a United States-based multinational technology corporation. His work involves writing computer software and engaging in the broader computer industry and IT service management sectors. ### Wikimedia Activities Stelmasik is an active contributor to Wikipedia and related projects under the username **masti**. His involvement extends to Wikimedia Commons. He has held significant governance roles within **Wikimedia Poland**: * **Board Member:** Served a two-year term from 2010 to 2012. * **Treasurer:** Served an eight-year term from 2012 to 2020. * **Events:** He is noted as a participant in the "Belarusian Wikipedia Day in Poland" held in 2013. ### Skills and Identity Stelmasik is identified as a male human instance of a programmer and Wikipedian. He possesses linguistic proficiency in: * Polish * English * German * Russian ## References 1. [Source](https://www.ci.pw.edu.pl/Aktualnosci/Politechnika-Warszawska-w-Wikipedii) 2. [Source](https://www.computerworld.pl/news/Nowa-kolekcja-nowa-strategia,301920.html) 3. [Source](https://www.youtube.com/watch?v=tgFIRe6C2pA) 4. [Source](https://forsal.pl/galeria/918298,wikipedia-mija-15-lat-od-powstania-wikipedia.html)