It is a very large company and it is easy to get lost in the vastness of what all happens throughout the entirety of the company. Can feel like you are not making a big enough impact if you are used to being at a smaller company where the same results would have been game changing for the smaller company and only marginal improvement for a company this size. However, with time and the right leader you will come to realize that you are just as important if no more in this company despite its size.