RF-SMART Software Support Engineer interview questions

I applied online and was given a next step to complete a technical assessment using a platform called CodeSignal. It consisted of 4 easy Leetcode style questions where you had to solve a problem and pass pre-written tests. After finishing the test I waited about a week before reaching out to the recruiter who informed me I got a perfect score and promised to reach out to the hiring team. A couple weeks later I got an automated email telling me that they decided not to hire anybody after all. Don't waste your time.