HashedIn by Deloitte Software Engineer interview questions

Round 1: Online Assessment 3 DSA problems (1 easy, 2 medium), similar to LeetCode. Round 2: Technical Interview Started with introduction and detailed discussion about my internship work and project architecture. The interviewer was an experienced Java developer, so we had a deep conversation on Spring Boot. Topics discussed: @Controller vs @RestController MVC pattern Then moved to DSA problem-solving: - Find pairs whose sum is a multiple of 6 - Count occurrences of each string - Count palindromic subsequences Round 3: Technical (System Design) Focused on designing a social media application (pre-Instagram era). Discussed: - Feature breakdown - System flow and schema design - Storage and optimization strategies for images/videos - Multithreading follow-up questions

The interview process consisted of multiple rounds including technical and HR discussions. The interviewer asked questions on programming concepts, problem solving, and basic computer science fundamentals. Overall the experience was smooth and well-structured, with an average level of difficulty