I applied online. The process took 4 weeks. I interviewed at TradingScreen (London, England) in Jun 2019
Interview
First 121 with the HR representative, followed by another two interviews with an HR manager and a Sr Project Manager.
This process happened twice within 8 months for two similar positions.
In both cases, the Sr Project Manager spent all his time on his mobile while I was answering to his bullet questions.
In both cases, any feedback request went unanswered.
Don't take them seriously, they are not.