systematizer

/ˈsɪstəməˌtaɪzər/
noun
  1. A person who organizes things into a system or orderly arrangement.
    • Our team needs a good systematizer to bring order to our chaotic project notes.
    • As a natural systematizer, she arranged all the files by date and category.
    • The librarian was a skilled systematizer who made it easy to find any book.