Nintendo is planning to launch their first mobile game later this year, and a total of five mobile games (each one in a different genre and utilizing an different IP) by the end of fiscal 2016. It looks like at least one of those games will be developed by Nintendo Software Technologies, best known for the Mario vs. Donkey Kong series and Metroid Prime Hunters.
The Redmond-based Western branch of Nintendo recently put up a job listing for a mobile game developer. Nintendo is looking for someone with a background in Computer Science, a working knowledge of iOS and Android software development kits, and experience with Unity or similar cross-platform mobile game engines.
Source: Bit Parade