After the recruiter interview and a manager interview a test was assigned. They have a short deadline for completion. After I complete it and send it, they reject me with no feedback whatsoever.

In the first round of recruitment, you will first make a phone call to understand your job search goals. Why do you want to apply for this job? What experience do you have in the past that is relevant to the job opening? The second level is the Hiring Manager. The questions asked are similar to recruitment, but some questions are asked about how to manage the team. The time is controlled very well, and the overall interview is very good. The third level is the examination of technical assignments. The technical team will only send a notice after reviewing and deeming it feasible. The fourth level is the technical team interview to confirm whether the culture matches each other.