About the Authors

Jussi Roine started working with SharePoint with the very first version, SharePoint Portal Server 2001, in late 2000. With a strong infrastructure and development background by then, and also having worked quite a bit on Linux-based solutions, SharePoint fascinated him with its seemingly endless potential and easiness for end users. He continued working with SharePoint through all the versions since, including SharePoint Portal Server 2003, MOSS 2007, and SharePoint 2010, 2013, and 2016. He also enjoyed working with customers when they started moving beyond on-premises to the early cloud-based offerings on BPOS and Office 365, later in 2011.
He has been a Microsoft Most Valuable Professional since 2014, and a Microsoft Certified Trainer since 2006. In 2012 and 2014, he had the honor of attending the Microsoft Certified Master (later Microsoft Certified Solutions Master) program, which he passed among the very selected few in the world at the time. In 2017, Jussi became a Microsoft Regional Director, a member of 150 of the world’s top technology visionaries chosen for their community leadership and cross-platform expertise.
Having providing his clients with solutions, architectures, and trusted advisor services for 25 years now, he has also had a chance to dive deeply into Microsoft Azure, which connects and integrates with Office 365 robustly. Over the years, he has written several books on SharePoint, the Office clients, productivity, flexwork, and Microsoft platforms. This book is his first international book aimed at a more diverse audience, and he hopes that this book will help current and future developers working on the Office 365 platform to more easily provide superior solutions for their clients using SharePoint Framework.

Olli Jääskeläinen is a Microsoft MVP, Microsoft Certified Master (MCM), and Microsoft Certified Trainer (MCT). Olli has been working in the field for over 15 years. He knows SharePoint inside out and is currently focusing on building productivity solutions using Office 365. Olli works as an architect for Sulava and as an organizer for the Office 365 and SharePoint User Group Finland. He has been giving technical presentations since 2013 at events such as TechDays Finland, European SharePoint Conference, TechTalks Finland, SharePoint Saturdays, and Office 365 Engage.