Thomson Reuters Sr. Software Engineer interview questions

I have given interview for Python AWS Developer. Three rounds of interview they conducted. Round 1 : Technical Round 2: Tech & Manager Round 3 : HR Manager is cool

The worst experience I have ever had with any company. I applied for a role in August, I initially started the process with a recruiter and when through the initial call. Got a rejection said the role was filled. A week later the role was reposted. I got in touch again and we restarted the process. We did another HR/Recruiter screening, and then entered a loop where their Polish based (outsourced?) Talent Partner don't even have Calendly links to share. After 3-4 weeks trying to schedule a call with the hiring manager, we finally found a slot. On the day of the interview, no one joined. Absolutely outrageous and unprofessional. Suffice to say, you must be desperate for a job to be willing to get through their interview process.