I applied through college or university. The process took 2 weeks. I interviewed at Groupon (Dublin, Dublin) in Dec 2015
Interview
It was quite simple and professional. They asked me several questions on my subject modules and my mini projects which I did in my masters. They also asked few aptitude questions like critical reasoning and all those stuff.
I applied through a recruiter. I interviewed at Groupon in May 2021
Interview
hr, tech screening, coding, final. It varies a lot depending on which team you are at. So it could be different by difficulty level. There is a massive layoff right now so don't come here and look somewhere else.