Jaroslav Mašek graduated from Charles University, Faculty of Education (major: English Language, Computer Science). He is a high school teacher at SŠIPF Brno. He leads an educational portal called Učitelský Spomocník and is a creator and head of Virtual Digicenter. He works as an educator at Wikimedia Czech Republic. He creates online courses and organizes various events for teachers. He is a Google Educator Group member and a Czech IVLP Alumni Club member.