I applied through a recruiter. The process took 1 week.

I was interviewed by 5 different Wealthsimple employees. During the whole process, I was allowed to choose a programming language that I was most comfortable with. First, there was a technical phone screening comprising a relatively easy coding challenge: implement binary search. The goal, as stated by the interviewer, was to assess how I worked in a cooperative scenario. I was free to use Google and ask for help from the interviewer. After that, I had 5 hours of on-site interviews.

• One design challenge interview, where I had to design a database replication mechanism of my choosing. The goal didn't seem to be around getting the right answer, but actually to allow the interviewer to measure my reasoning skills and overall knowledge.
• Next were two code-pairing interviews. They were very similar to the phone screening, but a little bit more involved. The difficulty level was still average in my opinion. One was around aggregating JSON objects by a common field, and the other was a constructed problem around elevator buttons and where the elevator would land at the end.
• The last one was a culture-fit interview, where I talked to the interviewer about my motivations for applying and general soft-skills kind of stuff.

Two days after the on-site interview, I was contacted by Wealthsimple with an offer.

Aggregate a list of JSON objects by a common field.