When they said Reddit has 2000 employees I was shocked. what could they possibly do onto a website that is basically run by users (and sysadmins) and that is basically feature-wise mature? I really can’t figure out 2000 people working every day on Reddit… on what? just for a quick comparison, the whole IAmA was run by a single person (Victoria), so… what are they doing?
100% agree, here’s some more departments that you haven’t listed but probably exist:
Legal, internal contracts, contracts with suppliers, contracts with customers (advertisers), compliance with the laws of many countries/markets
Regulatory, compliance with internal and external regulations
Procurement, negotiating with suppliers
sustainability, there’s probably someone in the business reporting on gender balance and environmental impact and a host of other UN SDG considerations
PMO, internal project management and portfolio reporting
market X, there may be a team of people for each major market responsible for sales, infrastructure, compliance, etc. in that market, in addition to central
CI/productivity, there will be some team responsible for reducing costs
Product owners, there will be teams of people responsible for arguing about what features/bugs should be implemented/fixed
monetization, there’s probably dedicated teams looking at (and a/b testing!) new ways to push people into spending money on the app and/or interacting with ads more often