Some of my tasks involved:
Periodic cycles with catchup meeting assured the MVP was executed in a time manner, with updates given to ciritcal stages of the design process.
The research took the shape of in-depth interviews to better understand user needs. Assumptions were clarified while better scoping was defined.
A full click-through prototype was set up to test information architecture, navigation, labeling, small screen interaction. This later was used as walk-thorugh material for the development team
With a fully clickable prototype, we tested the product first internally than externally. Capturing insight and refining design based on quantitive data