The process is slow, so apply early, when advertisements are up. Also, they employ only one person per position.

First, I received an email stating I would get a HackerRank test.

After about a week, I received a link.

I completed the HackerRank test and, approximately three days later, got an answer that I would proceed to an interview.

After a week, I received information about the interview and was asked to set a date.

The first interview was 100% behavioral.

The following week, I had a technical interview. I failed at that stage.

If I had passed, I would have had an on-site interview in Dublin.

Hackerrank #1: You get a list of $time, $money, and $team. Find the longest period when the change of money per time was the biggest.

Hackerrank #2: You get a list of $time, $kill, and $team. Find the 30-second periods with the biggest number of deaths.

Hackerrank #3: You get a list of $time, $kill, and $player. Find players and periods, with no longer than 15-second gaps, with the biggest number of deaths.

Interview #1: Typical behavior questions

• Why Riot Games?
• Do you play LoL?
• What is your rank?
• Why do you play games?
• What was your biggest success?
• What was your biggest defeat?
• What was your biggest problem at work?
• What was your biggest project?
• What were the problems with teammates when you worked on projects?

Interview #2: Typical tech questions

• Do you use Git or SVN?
• Why Python?
• If you were to get your own project, would you use Python and why?
• Would you put your project in the cloud or on a dedicated server?
• How do you think the backend of LoL looks?