I applied online. I interviewed at bitFlyer (Tokyo) in Jan 2026
Interview
Take-home assignment that you have to put on GitHub before talking to anyone. Sort of vague problem description that definitely takes like 10 hours to polish and get correct with good testing. HR didn't respond fast enough for my problem clarifications so I submitted something and got rejected a few hours after submission without any feedback.
I applied online. The process took 2 weeks. I interviewed at bitFlyer (Vaduz) in Feb 2019
Interview
I had an screening interview with HR first. Basic questions about experience. HR not very well informed about the industry. I talked about my experience and how that would fit the role. Was asked how I would fit into the work culture.
Interview questions [1]
Question 1
What would make you a good fit? What experience do you have?
I applied through a recruiter. The process took 2+ months. I interviewed at bitFlyer (Tokyo) in Dec 2018
Interview
A recruiter in Tokyo put me forward, I had an interview via Skype as I lived near Nagoya at the time. Interview was with two developers, one an American, the other Japanese. I was asked a series of odd syntax trivia type questions especially around the .NET framework. Also some very strange broad questions about how the internet works. Some questions I answered I was told I was wrong - I must've looked confused because I was sure I was right. I was also tested in Japanese language, even though it was not a requirement for the job. The Japanese guy seemed disappointed with my level, even though it apparently was not a requirement. They didn't seem too interested in my past experience, or the organisations I had worked for - it was all practically ignored. They were interested in why I was living in Japan and what my situation was, visa and whatnot.
This was by far one of the weirdest interviews I'd ever had. When I asked them questions about the office culture, are there social events etc, is it team work orientated or individually competitive - they seemed a little defensive and cagey I thought. It was hard to get information about the workplace, which I found odd.
There was no mention of salary, even the recruiter would not give me a range. If no one is saying anything about it, I always think it would definitely be on the low side. Looking at other reviews, it seems I was right in my assumption.
So glad they didn't offer me anything, I don't think I was the right fit for them and they certainly were not the right fit for me. The problem is, being in Japan, as a foreigner you really have to take what you can get (which is not much at the best of times). If offered, I probably would've felt I needed to take it and accept the low salary, which could explain why they are so "keen" to interview / hire foreign nationals whereas a lot of other Japanese companies are not.
After my recruiter told me they were not going to continue the process, though the feedback was apparently positive - I asked if they could elaborate why for my own progression. He told me it all comes through some opaque HR rep and we will likely never find out a reason. Reading other people's reviews and interviews, it looks like this is a common pattern.
Interview questions [4]
Question 1
Name every class you can think of in the .NET framework that implements IEnumerable