Maaret Pyhäjärvi


Maaret Pyhäjärvi

Maaret Pyhäjärvi is a feedback fairy with a day job at Vaisala, where she works as Principal Test Engineer. She identifies as empirical technologist, tester and programmer, catalyst for improvement, author and speaker, and community facilitator and conference organizer. She was awarded as Most Influential Agile Testing Professional Person 2016, listed on 100 most influential in ICT in Finland by TiVi 2019, and has spoken at events in 25 countries delivering over 400 sessions.

With 25 years of exploratory testing under her belt, she crafts her role into being a mix of leading, hands-on testing and programming. She is a serial volunteer and organizing powerhouse contributing to European Testing Conference and TechVoices, as well as Finnish non-profit scene. She blogs at, and is the author of three LeanPub books: Mob Programming GuidebookExploratory Testing and Strong-Style Pair Programming. Her web page is

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