Microsoft’s former head of design for Windows and devices has started a new role at Amazon this week. Ralf Groene was responsible for the design of Microsoft’s Surface tablet, and worked closely with former Windows and Surface chief Panos Panay on a line of Surface devices over the past decade. The pair are now reunited at Amazon, working on devices again.

Groene, alongside Panay, was instrumental in the creation of the Surface line of products. The original Surface tablet started off life in Groene’s sketchbook, with a set of doodles about kickstands that formed the basis of months of 3D-printed prototypes that were held together with string. Microsoft went on to launch the Surface RT tablet in 2012, and the Surface Pro has had a lasting effect on hybrid laptop designs over the past 10 years.

Groene and Allard aren’t the only notable recent former Microsoft hires for Amazon, though. Former Windows Cloud executive Aidan Marcuss also joined Amazon this week, leading the Fire TV, ads, and AppStore teams.