Stantech AI interview questions

HR called for phone screening, asked about experience in React Native, specifically for offline first app with sqlite. Shared an assignment to create an offline first app with Sqlite, Redux and Redux Saga with best practices. After this only one Interview round is held. In which the complete React Native architecture and basic JavaScript based questions were asked.

round 1 - Hacker earth test (qualified) round 2 - onsite round i was asked few questions from my resume how to make SQL db connection difference between mysql and postgress create a post API which does some tax calculations(formula was given) and return response. Experience: worst interview ever ,i gave all the answers highly unprofessional people . The interviewer asked my salary verdict: Rejected ,the reason they gave me was im not technically sound