A recruiter reached out after I applied online.

They sent me a HackerRank test, on which I scored 100%.

After a month of dead silence, I followed up to notify them about a competing offer. They sent out a generic rejection a day after.

My problem with their recruiting process is this: If I was in consideration for the role, which is why the recruiter reached out, and I scored full marks on the test, meaning nobody could have performed better, how did I suddenly qualify for a rejection with no further rounds?

If I wasn't in consideration at all, then why reach out, send a HackerRank test, and waste my time?

Do not treat candidates as disposable entities. Value their time. You are not a large or prestigious company, and if you do not respect candidates and potential employees, you will go down the drain pretty quickly.

Easy HackerRank test.