亚麻Irvine的分组情况 求解答

大家好，楼主前天刚拿到亚麻offer，地点是加州的尔湾，粗略了解后知道尔湾的office不大。主要就是AWS和alexa的业务部门。
楼主发帖是想问问具体是负责哪个部门，当然也希望能找到一起去尔湾office的小伙伴或者能有机会认识在尔湾office的同事。
以下是Key Job Responsibilities
· Collaborate with experienced cross-disciplinary Amazonians to develop, design, and bring to market innovative devices and services
· Design and build innovative technologies in a large distributed computing environment and help lead fundamental changes in the industry
· Create solutions to run predictions on distributed systems with exposure to cutting edge technologies at incredible scale and speed
· Build distributed storage, index, and query systems that are scalable, fault-tolerant, low cost, and easy to manage/use

最后再请教一下大家入职前几个月都干点啥比较好呢？如果要学些技术的话学什么比较好呢？因为疫情这样的状态，出去玩应该是不可能了，只能在家好好休息多锻炼，空闲时间相对来说比较充裕。
谢谢各位！