I recently interviewed at Morgan Stanley Montreal through a client vendor.

The process included two rounds:

• The first round was a 45-minute online interview.
• The second round was conducted on-site with two interviewers, each session lasting 45 minutes.

The interview was fairly technical and covered a wide range of topics related to backend development and system design.

It's important to prepare thoroughly based on the job description, as the questions are closely aligned with the required skills.

Core Java: OOP, HashMap internals, String vs. StringBuilder

SQL: Complex/nested queries with joins and subqueries

Problem-Solving: Easy to medium coding challenges

Spring Security: Auth vs. authz, CSRF, role-based access

Spring Profiles & Scopes: Env configs, Singleton, Prototype, Factory

Spring Core: IoC, Dependency Injection, Bean lifecycle