Tata Consultancy Services (North America) Business Analyst Interview Experience: architecture and Java depth

The interview began with a detailed walkthrough of my current project. I had to explain the full architecture: design, microservice communication, database interactions, authentication, deployment, technologies, and the reasoning behind decisions. They then covered Java collections, multithreading, exceptions, OOP, and Streams operations such as filtering, mapping, grouping, sorting, and reducing…

Shared by a candidate · reported Jul 2026. Interview formats change; use it as a guide, not a script.