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PhonePe | Software Engineer | Dec 2024

Round 1: Machine Coding | 1.5 hr

Questions: Build an activity tag logging system with the following functionalities:

  1. User should be able to add tags to activity in hierarchical order.
  2. User should be able to retrieve the count of how many times a tag is used across all entities.

Focused Skills: Design Patterns, Time complexity, Code quality.

Candidate's Approach

No approach provided.

Interviewer's Feedback

No feedback provided.


Round 2: DSA and Problem Solving | 1 hr

Questions:

  1. Matchsticks to Square
  2. Kth Smallest Element in a Sorted Matrix

Focused Skills: Problem Solving approach, Time/Space complexity.

Candidate's Approach

No approach provided.

Interviewer's Feedback

No feedback provided.


Round 3: Design | 1 hr

Questions: Design Twitter with the following functionalities:

  1. Post Tweet
  2. Follow-following
  3. User timeline
  4. User profile

Focused Skills: LLD, HLD.

Candidate's Approach

No approach provided.

Interviewer's Feedback

No feedback provided.


Round 4: Hiring Manager | 1 hr

Questions: Questions from resume and previous projects/features I worked on.

Focused Skills: Deep understanding of the work you have done previously and design decisions.

Candidate's Approach

No approach provided.

Interviewer's Feedback

No feedback provided.


Final Verdict: Hire