Mariia Mykhailova is a principal quantum software engineer at Microsoft Quantum. She has been part of the team since early 2017, joining just in time to participate in the development of the first version of the quantum programming language that became Q#. She works on developing software for fault-tolerant quantum computation, as well as quantum education and outreach for Azure Quantum Development Kit. Mariia is the author and maintainer of the Quantum Katas project – an open-source collection of hands-on tutorials and programming problems for learning quantum computing. She is also a part-time lecturer at Northeastern University, teaching Introduction to Quantum Computing since 2020, and the author of the O'Reilly book Q# Pocket Guide.