I applied through a staffing agency. The process took 2 weeks. I interviewed at A1 Bulgaria (Sofia, Sofia (city))
Interview
Easy and precise. The HR interview is pretty straight forward. The technical interview has questions which show how much deep knowledge you have and are picked accordingly for the position. Overall a pleasant experience.
Interview questions [1]
Question 1
What technologies you have used. What'll you do in certain situations. Synchronous and asynchronous code (event loop). React stuff - virtual dom, hooks. Global state management libraries for react (redux in particular)