This guide will let you know how to find a Base Scientist in No Man’s Sky.
Before anything you will have to have an overseer at your base before you can get a base scientist. You can get an overseer by going into any system and looking for a Gek at a space station and talking to them. You will need to have a base and the construction terminal built before you will be able to recruit an overseer.
Once you have an overseer, you need to build a science terminal and once you have a science terminal built, you have to find a Korvax system if you aren’t already in one. After that, visit a space station and talk to Korvax you find there as one of them can be a base scientist that you can hire.