Was reached out by the recruiter and then they were supposed to schedule an initial screen with the manager. There was no communication from their side so I had to reach out to them and then finally the screening was scheduled. After the initial screen I was asked to work on a project. First phase was designing the project and second phase was implementing it in code. After the design phase I met with a Crowdstrike Engineer for a design review. He was really helpful and the design review went well where I found a couple of improvements to my design. Then came the implementation phase where I was supposed to implement the design. I was given 4 days to implement it. I implemented the solution and tested it with a bunch of base cases and some negative test cases. When I provided the solution back I did tell them that this solution can definitely be improved if I had more time because for me the biggest constrain was to work on the project while I already have a really demanding full time job where I have to invest for 10-12 hrs in a day. I think they totally forgot this important data point that I am not working on the project full time and if they are expecting me to do so then its not a valid expectation. The project was not a trivial one and I invested a lot of time to implement a solution that works with 90% of the test cases. But I was rejected because one of the negative test cases for the input failed. Overall I feel it was a total waste of time for me and I am glad I prioritized my actual work than working on their project which had this outcome.