Info Edge

Role: Senior Software Engineer (1-3 YOE)

College: Not Specified

Interview Date: Not Specified (All rounds in-person on same day)

Interview Type: Full-Time, Experienced Hire

Result: Selected

Difficulty: Medium

Rounds: 3 Technical Rounds + HR Interview

Topics Asked: DSA, Java (basic, internal working), Project discussion, Work Experience, Database indexing, Microservices architecture, System Design (LLD), SQL, Managerial questions

Experience:

This candidate was contacted by a recruiter for a Senior Software Engineer position. All technical rounds were conducted in-person on the same day, followed by an HR interview the next day.

Round 1 (In-Person - DSA + Basic Java): This round focused on Data Structures and Algorithms along with core Java concepts.

• Coding Questions:
  1. Max Consecutive Ones III (LeetCode Medium, but with 'A's and 'B's instead of 0s and 1s).
  2. Next Permutation (LeetCode Medium).
• Java Questions: `finally` vs `finalize` keyword, `Comparable` vs `Comparator`, Internal Working of `TreeMap`.

The candidate solved both coding questions optimally and correctly within 30 minutes and answered all Java questions.

Round 2 (In-Person - Project discussion and Work Experience): This round involved a detailed discussion of the candidate's resume and work experience.

• Questions on SpringBoot annotations like `@Transactional`.
• Questions on Database indexing and Microservices architecture.
• System Design (LLD): Design an e-commerce platform (asked to write main classes and brief APIs).
• Discussion on Horizontal scaling vs vertical scaling.

Round 3 (In-Person - Hiring Manager Round): This round included a DSA question, an SQL query, and managerial questions.

• Coding Question: Implement Stack using Queues (LeetCode Easy).
• SQL Query: Nth Highest Salary (LeetCode Medium).
• Managerial questions.

HR Interview: Conducted the next day. (Details not provided in snippet but implied as the final step before selection).