PhonePe Placement Papers 2024 - Previous Year OA Questions & Solutions

Company Overview

This page contains PhonePe placement papers from 2024 with previous year online assessment questions, solutions, and exam patterns.

2024 Pattern

The 2024 PhonePe placement process emphasized DSA mastery and payment system design. Online assessment included 2-3 coding problems focusing on arrays, trees, graphs, and dynamic programming.

PhonePe Online Assessment 2024 Pattern

Section	Questions	Time	Difficulty	Focus Areas
Coding Problems	2-3	90 min	Medium-Hard	Arrays, trees, graphs, DP

Total: 2-3 problems, 90 minutes

Platform: HackerRank or similar
Languages Allowed: Java, Python, C++, Go
Success Rate: ~15-20% cleared OA and advanced to interviews

PhonePe Placement Papers 2024 - Actual Questions & Solutions

DSA Coding Problems (2024)

Question 1: Longest Palindromic Substring

Q1: Given a string s, return the longest palindromic substring in s.

Example:

Input: s = "babad"
Output: "bab" or "aba"

Solution (Java):

public String longestPalindrome(String s) {
    if (s == null || s.length() < 1) return "";
    int start = 0, end = 0;

    for (int i = 0; i < s.length(); i++) {
        int len1 = expandAroundCenter(s, i, i);
        int len2 = expandAroundCenter(s, i, i + 1);
        int len = Math.max(len1, len2);

        if (len > end - start) {
            start = i - (len - 1) / 2;
            end = i + len / 2;
        }
    }

    return s.substring(start, end + 1);
}

private int expandAroundCenter(String s, int left, int right) {
    while (left >= 0 && right < s.length() && s.charAt(left) == s.charAt(right)) {
        left--;
        right++;
    }
    return right - left - 1;
}

Time Complexity: O(n²)
Space Complexity: O(1)

2024 Hiring Trends

Hiring Volume

• Total Hires: 200+ freshers in India
• Software Engineer: 180+ selections

Salary Packages

• Software Engineer: ₹18-25 LPA total compensation

Key Insights from 2024 PhonePe Online Assessment

1. Coding Section is Critical: Must solve 2-3 coding problems correctly to advance
2. DSA Focus: Strong emphasis on arrays, strings, trees, graphs, and dynamic programming
3. Time Management: 2-3 problems in 90 minutes requires excellent speed and accuracy
4. Payment System Focus: Problems often relate to payment systems, UPI, transactions, security
5. System Design: Asked for SDE-1/2 roles, payment system design for fintech roles
6. Success Rate: Only 15-20% cleared OA and advanced to interviews
7. Platform: HackerRank or PhonePe’s internal platform
8. Focus Areas: Arrays, trees, graphs, dynamic programming, payment systems, UPI

PhonePe 2024 Interview Experiences

Based on candidate experiences from 2024 PhonePe interviews:

2024 Interview Process:

1. Online Assessment (90 minutes): 2-3 coding problems
2. Technical Phone Screen (45-60 minutes): Coding problems, algorithm discussions, UPI/payment concepts
3. Onsite Interviews (4-5 rounds, 45-60 minutes each):
   • Coding rounds (2-3): Algorithms, data structures, problem-solving
   • System Design rounds: UPI systems, payment processing, transaction systems, security
   • Behavioral rounds: Problem-solving approach, security mindset, impact

Common 2024 Interview Topics:

• Coding: Arrays, strings, trees, graphs, dynamic programming, payment algorithms
• System Design: UPI systems, payment processing, transaction systems, security, fintech architecture
• Behavioral: Problem-solving, security mindset, teamwork, impact
• PhonePe Technologies: UPI, payment systems, transaction processing, security, fintech platforms

2024 Interview Questions Examples:

• Longest Palindromic Substring
• Design PhonePe’s UPI system (System Design)
• Design PhonePe’s payment processing system (System Design)
• Security-related coding problems

Success Tips:

• Strong coding performance is essential - solve problems optimally
• Understand UPI and payment processing concepts
• Practice system design for UPI systems and payment processing
• Prepare examples demonstrating problem-solving and security mindset
• Learn PhonePe’s products and UPI technologies
• Practice explaining your thought process clearly

For detailed interview experiences, visit PhonePe Interview Experience page.

Preparation Tips for PhonePe 2024 Pattern

1. Master Coding Fundamentals: Focus on solving 2-3 coding problems correctly - arrays, trees, graphs, DP
2. UPI/Payment Knowledge: Strong understanding of UPI, payment processing, transaction systems, security
3. Practice Previous Year Papers: Solve PhonePe OA papers from 2020-2024 to understand patterns
4. Time Management: Practice completing 2-3 coding problems in 90 minutes
5. LeetCode Practice: Solve 200+ LeetCode problems focusing on arrays, strings, trees, graphs (medium-hard difficulty)
6. Fintech Focus: Practice problems related to payment systems, UPI, and transactions
7. System Design Mastery: Learn UPI system design, payment processing, transaction systems, security
8. Security Knowledge: Understand security best practices for payment systems and UPI
9. Behavioral Preparation: Prepare examples using STAR format - problem-solving, security mindset, impact
10. Mock Tests: Take timed practice tests to improve speed and accuracy

Related Resources

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PhonePe Coding Questions

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PhonePe Interview Experience

Real interview experiences from successful candidates

Read Experiences →

PhonePe Preparation Guide

Comprehensive preparation strategy for PhonePe placement

View Preparation Guide →

PhonePe Main Page

Complete PhonePe placement guide with eligibility, process, and salary

View Main Page →

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Practice 2024 papers to understand PhonePe OA pattern and prepare effectively!