I applied online. The process took 2 weeks. I interviewed at Twilio in Sep 2014
Interview
Recruiter talk, then a phone interview. The phone interview questions are mainly about Java concepts, like how to make a Hashmap thread safe, what to do in case of collision, what is and the usage of Singleton pattern, and java synchronized keyword. At the end is an coding problem to determine if a ransom letter can be composed using a magazine. The question part took over than half an hour, and the coding part only took a little over 10 mins, which I think should be the other way around.
Interview questions [1]
Question 1
Had difficulty answering some of the java questions.
I was given a take-home coding exercise, which was quite a bit more hefty than most others I've had. Sent a link to the public repo a few days later. The following week, the recruiter asked me to send the link I already sent. When I followed up the next week, I found that the recruiter's email bounced - they were no longer with the company. So I then emailed a higher-up, who passed me along to another recruiter, who I then sent my exercise to yet again. A rejection followed soon after with no feedback.
Phone screen and onsite with a few leetcode and system design questions. The overall process was professional and the recruiters did a good job of keeping me up to date.
Interview questions [1]
Question 1
Implement an LRU Cache with some existing boilerplate code
I applied online. I interviewed at Twilio (Dublin, Dublin)
Interview
Very friendly talent acquisition staff member, was given plenty of info for technical test, including what concepts would be asked. Had to do a systems design interview also and was given enough to prep for that.
Interview questions [1]
Question 1
Programming question about traversing graphs, systems design question about a photo printing service
