Software Engineer

Software EngineerSoftware Engineer 2Medium to Hard

This interview process is for a Software Engineer role at PhonePe, specifically for the Software Engineer 2 level. It aims to assess a candidate's technical proficiency, problem-solving skills, and cultural fit within the organization.

Rounds·3

Timeline·~7d

Experience·2 - 5 yrs

Comp band·US$150000 - US$250000

Interview time·165 min

Evaluation

What they measure.

  • Problem-solving abilities
  • Data structures and algorithms knowledge
  • Coding proficiency and best practices
  • System design and architecture understanding
  • Behavioral and cultural fit
  • Communication skills

Preparation

How to prepare.

Tips

  1. Thoroughly review fundamental data structures and algorithms.
  2. Practice coding problems on platforms like LeetCode, HackerRank, etc.
  3. Understand core computer science concepts (OS, DBMS, Networking).
  4. Prepare for system design questions, focusing on scalability and trade-offs.
  5. Reflect on past projects and be ready to discuss your contributions and learnings.
  6. Research PhonePe's products, values, and recent news.
  7. Prepare answers to common behavioral questions using the STAR method.

Study plan

Fig · Study plan — 04 phases

01 / 04
01

Phase 01 of 04

Data Structures & Algorithms

Weeks 1-2: DSA Fundamentals & Practice

Weeks 1-2: Focus on Data Structures (Arrays, Linked Lists, Trees, Graphs, Hash Tables) and Algorithms (Sorting, Searching, Dynamic Programming, Greedy). Practice problems related to these topics.

Questions

Commonly asked.

  • Given an array of integers, find the contiguous subarray with the largest sum.
  • Design a URL shortening service like TinyURL.
  • Explain the difference between a process and a thread.
  • How would you design a system to handle millions of concurrent users?
  • Tell me about a time you failed and what you learned from it.
  • What are the trade-offs between SQL and NoSQL databases?
  • How do you approach debugging a complex issue in a production environment?

Locations

Regional differences.

Fig · Regions — 02 locations

01 / 02

Location

Bangalore

Interview focus

Adaptability to local market trends and customer needs.Understanding of regional technical challenges and solutions.

Common questions

  • Discuss a challenging project you worked on and how you overcame obstacles.
  • How do you handle disagreements within a team?
  • Describe a time you had to learn a new technology quickly.

Tips

  • Research common technologies used in the specific region.
  • Be prepared to discuss how your skills align with local industry demands.

Rounds

Round-by-round.

Expand a step for evaluation criteria, sample questions, and prep notes.

Med

Technical Interview (DSA) · 60 min · Software Engineer (Peer)

This round focuses on assessing your core data structures and algorithms knowledge. You will be presented with coding problems that require you to implement efficient solutions. The interviewer will evaluate your approach, coding style, and ability to optimize your solution.

What they look for

Strong understanding of data structures and algorithms.Ability to translate a problem into a working code.Logical thinking and problem-solving approach.

Evaluation

  • Correctness of the solution
  • Time and space complexity of the algorithm
  • Code clarity and efficiency
  • Ability to handle edge cases

Sample questions

  • Reverse a linked list.

    Data StructuresLinked Lists
  • Find the kth smallest element in a binary search tree.

    Data StructuresTreesBST
  • Implement a function to check if a string is a palindrome.

    AlgorithmsStrings

Prep for this round

  1. 01Practice coding problems on platforms like LeetCode (Easy/Medium difficulty).
  2. 02Understand the time and space complexity of your solutions.
  3. 03Be prepared to explain your thought process step-by-step.

Common rejection reasons

  • ×Inability to articulate thought process clearly.
  • ×Lack of fundamental DSA knowledge.
  • ×Poor coding practices (e.g., inefficient solutions, unreadable code).

DSA

Coding questions at PhonePe.

Frequently reported on PhonePe loops

Other guides

More at PhonePe.