EPAM Systems Software Developer Sr interview questions

Reached through LinkedIn, Total 3 rounds, 2 tech,1 HR - Technical rounds were difficult. Mostly asked about tech mentioned in the resume. RAG, LLM pipelines etc. DSA questions LeetCode Medium. What is the difference between supervised and unsupervised learning? Arrays and Strings (e.g., Longest Substring Without Repeating Characters)Trees and Graph TraversalsDynamic Programming OOPS principles and API design.CI/CD pipelines and the basics of containerization with Docker.

5 step of it. HR, OA, Technical Interview, HR Manager Interview, Company Interview and Offer. HR team were really helpful in every step of the process. There is a puzzle of OA which was looking simple but you have to manage your timing. I cannot see the beyond because that position was closed...