1. Contacted by a recruiter on LinkedIn.
2. Called by a recruiter to discuss opportunities. Completed an application after the phone call and emailed the recruiter to advance to the next step.
3. Completed a Codility assessment to qualify for an interview event. There were three questions, which was not bad. They included a couple of string questions and exploiting a bug in a given algorithm.
4. Contacted to schedule a virtual interview event.
5. The event consisted of four interviews on MS Teams, each lasting 45 minutes. Each interviewer asked behavioral questions and a coding question using Codility.

Question 1: Check if a string, composed of various brackets, braces, and parentheses, is valid.

Question 2: Given a large rectangle and a set of smaller rectangles, find if there exists a subset of the small rectangles that can perfectly fill the large rectangle.

Question 3: Given a string of parentheses, balance the string in as few moves as possible. Return the set of moves used to balance the string.

Question 4: Given a tree, where each node holds an integer value, find if there exists a path from the root node to a leaf node that equals a given sum.