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PayPal Interview Questions, Process, and Tips

Updated 2 Mar 2025

Top PayPal Interview Questions and Answers

  • Q1. Cycle Detection in a Singly Linked List Determine if a given singly linked list of integers forms a cycle or not. A cycle in a linked list occurs when a node's next poin ...read more
    asked in Software Engineer interview
  • Q2. Maximum Path Sum in a Matrix Given an N*M matrix filled with integer numbers, determine the maximum sum that can be obtained from a path starting from any cell in the fi ...read more
    asked in Software Developer interview
  • Q3. Sum Queries in a Sorted Array Given two arrays arr and queries , your task is to determine the sum of all elements in arr that are less than or equal to each element in ...read more
    asked in SDE-2 interview
View all 177 questions

PayPal Interview Experiences

Popular Designations

207 interviews found

Software Developer Interview Questions & Answers

user image Aditya V Kamath

posted on 6 Apr 2015

Interview Questionnaire 

9 Questions

  • Q1. Explain the concepts of Object Oriented Programming
  • Ans. 

    Object Oriented Programming is a programming paradigm that uses objects to represent real-world entities.

    • Encapsulation: bundling data and methods that operate on that data within one unit

    • Inheritance: creating new classes from existing ones, inheriting their properties and methods

    • Polymorphism: ability of objects to take on multiple forms or behaviors

    • Abstraction: hiding complex implementation details and providing a simp...

  • Answered by AI
  • Q2. Give examples of abstraction and polymorphism
  • Ans. 

    Abstraction is hiding implementation details while polymorphism is using a single interface for multiple types.

    • Abstraction: Encapsulation, Interfaces, Abstract classes

    • Polymorphism: Method Overloading, Method Overriding, Interfaces

    • Abstraction Example: Car - we don't need to know how the engine works to drive it

    • Polymorphism Example: Animal - different animals have different sounds but they all have a 'makeSound' method

  • Answered by AI
  • Q3. A simple design question to design classes
  • Q4. What does PayPal do?
  • Ans. 

    PayPal is an online payment system that allows individuals and businesses to transfer funds electronically.

    • Allows users to make payments and money transfers online

    • Offers a secure and convenient way to pay for goods and services

    • Provides a platform for businesses to accept payments online

    • Offers buyer and seller protection for eligible transactions

    • Can be used to send and receive money internationally

  • Answered by AI
  • Q5. A simple Machine learning question to use thresholding
  • Q6. Questions about Software Defined Networking and my project in that field
  • Q7. Questions about my internships at a startup and USC
  • Q8. Am I considering going for masters
  • Q9. What makes you want to join PayPal?
  • Ans. 

    I am excited to join PayPal because of its innovative culture and impact on the global economy.

    • PayPal's commitment to innovation aligns with my passion for staying up-to-date with the latest technologies.

    • I am impressed by PayPal's global reach and impact on the economy, and I want to be a part of that.

    • I appreciate PayPal's focus on diversity and inclusion, and I believe in the importance of working for a company with s...

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: The aptitude test consisted of about 20 questions and had just 20 minutes. The questions were tough and you need speed to solve them. People preparing for CAT and other such exams should be able to perform better. The max score among my batch was 7 or 8.
The coding question was paper based and you had to write C code for a simple question on paper, but design was also taken into account for evaluating the code.
Tips: Both get disheartened if you don't do well in the aptitude.
Duration: 60 minutes
Total Questions: 21

Round: Technical Interview
Experience: The interview was more like a discussion rather than a question answer round. The discussion always went quite off the topic and the interviewer went on to ask other concepts of OS and networks etc.
Tips: Be thorough with the core concepts in subjects like OS and networks

Round: Technical Interview
Experience: This interview was a little more of marketing PayPal to me than an interview. He however slipped in the questions given above. The machine learning question was a little too obvious to apply thresholding and I wasted time trying to get better algorithms when he expected only thresholding.
Tips: Do not tell you are the topper if you are, because I did and he clearly said they don't hire toppers!

Round: HR Interview
Experience: This interview was more to get the truth out of me. I have a very research oriented profile and that was evident from my resume. The interview was to find out whether I would really join their company if offered.
Tips: If you have a high CG and research experience but still want to go for a job, make sure you tune your resume to prune out the research and only market the side which the company looks for, otherwise the company will reject you.

Skills: Computer Science Concepts, OS, Networks, OOP, Machine Learning
College Name: IIT HYDERABAD
Motivation: Just as a backup since I was indeed planning for a masters program. Highest paying package among the companies at that time.

Top PayPal Software Developer Interview Questions and Answers

Q1. Maximum Path Sum in a Matrix Given an N*M matrix filled with integer numbers, determine the maximum sum that can be obtained from a path starting from any cell in the first row to any cell in the last row. You can move from a cell in the cu... read more
View answer (1)

Software Developer Interview Questions asked at other Companies

Q1. Maximum Subarray Sum Problem Statement Given an array of integers, determine the maximum possible sum of any contiguous subarray within the array. Example: Input: array = [34, -50, 42, 14, -5, 86] Output: 137 Explanation: The maximum sum is... read more
View answer (42)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I was interviewed in Jan 2025.

Round 1 - Coding Test 

One question related to object-oriented programming and one question related to data structures and algorithms.

Round 2 - Technical 

(1 Question)

  • Q1. DSA - 2 questions need to solve in 45 min with optimal solution one based on recursion and another is based on 2 pointers.
Round 3 - Technical 

(1 Question)

  • Q1. Can you describe the system design for the checkout feature on Amazon, including the request body, API calls, load balancing, database caching, and content delivery network (CDN) considerations?
  • Ans. 

    The system design for the checkout feature on Amazon involves request body, API calls, load balancing, database caching, and CDN considerations.

    • Request body includes user's selected items, shipping address, payment details, etc.

    • API calls are made to process payment, update inventory, and send confirmation emails.

    • Load balancing ensures even distribution of traffic across multiple servers to handle checkout requests effi...

  • Answered by AI
Round 4 - Behavioral 

(1 Question)

  • Q1. Questions regarding your resume, previous company project work, and behavioral topics.

Software Engineer2 Interview Questions asked at other Companies

Q1. - Given a water -tight orientable 2-manifold, how to find if a point is inside or outside its volume? - Given a bunch of points with their coordinates, how to merge closeby points together? - How to determine if the normals of the two trian... read more
View answer (1)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Oct 2024. There were 2 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Knn algorithm using python
  • Ans. 

    KNN algorithm is a simple and effective machine learning algorithm for classification and regression tasks.

    • KNN stands for K-Nearest Neighbors.

    • It is a non-parametric, lazy learning algorithm.

    • Works by finding the K closest training examples in feature space to a given input data point.

    • Classification: Assign the most common class among the K nearest neighbors.

    • Regression: Take the average of the K nearest neighbors' target...

  • Answered by AI
  • Q2. Some LC problem on suffix and prefix
Round 2 - One-on-one 

(2 Questions)

  • Q1. Case study on imbalanced dataset
  • Q2. Evaluation metrics

Skills evaluated in this interview

Senior Machine Learning Engineer Interview Questions asked at other Companies

Q1. Data formats in big Data, why each format.
View answer (1)
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
-
Result
No response

I applied via Referral and was interviewed in Nov 2024. There were 3 interview rounds.

Round 1 - Coding Test 

Data structures and algo. 2 ques were asked in hackerrank

Round 2 - One-on-one 

(1 Question)

  • Q1. Questions related to System design
Round 3 - One-on-one 

(1 Question)

  • Q1. Basic question related to Spring and Java

Senior Software Engineer Interview Questions asked at other Companies

Q1. Tell me about yourself. What technology are you using? What is a Collection? What are the different types of collection there? What is the difference between ArrayList and LinkedList What are the basic building blocks of Stream operators, s... read more
View answer (2)

PayPal interview questions for popular designations

 Software Engineer

 (24)

 Data Scientist

 (11)

 Software Developer

 (8)

 Senior Software Engineer

 (8)

 Risk Analyst

 (5)

 Data Analyst

 (5)

 Software Engineer2

 (5)

 SDE-2

 (4)

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn

Round 1 - Coding Test 

Question base on Tree data structures

Round 2 - Technical 

(2 Questions)

  • Q1. Explain GC collector in Java
  • Ans. 

    GC collector in Java is responsible for managing memory by reclaiming unused objects and freeing up memory space.

    • GC stands for Garbage Collector

    • Automatically manages memory by reclaiming unused objects

    • Prevents memory leaks and optimizes memory usage

    • Different types of GC algorithms like Serial, Parallel, CMS, G1

    • Example: System.gc() can be used to suggest garbage collection

  • Answered by AI
  • Q2. Dynamic programming algorithm question
Round 3 - Technical 

(1 Question)

  • Q1. Low level design for Car rental system
  • Ans. 

    Design a car rental system at a low level

    • Use object-oriented programming to model cars, customers, rentals, etc.

    • Implement a database to store information about available cars, customer bookings, etc.

    • Include features like booking, returning, and searching for cars

    • Consider implementing a pricing system based on factors like car type, duration of rental, etc.

  • Answered by AI
Round 4 - HR 

(1 Question)

  • Q1. Salary discussion

Skills evaluated in this interview

Software Engineer2 Interview Questions asked at other Companies

Q1. - Given a water -tight orientable 2-manifold, how to find if a point is inside or outside its volume? - Given a bunch of points with their coordinates, how to merge closeby points together? - How to determine if the normals of the two trian... read more
View answer (1)

Get interview-ready with Top PayPal Interview Questions

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant

Round 1 - Coding Test 

Ask about how to implement DQ

Jobs at PayPal

View all
Interview experience
3
Average
Difficulty level
Easy
Process Duration
4-6 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Oct 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Introduction about yourself
  • Q2. Basic golang questions
Round 2 - Coding Test 

Coding questions on DSA

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well on Golang and they ask only on basic level proficiency. But interviewer is inpatient and unable to listen till we complete our topic.

Golang Developer Interview Questions asked at other Companies

Q1. can we return difference data type and how ,what architeture you worked in your project,does go have oops concepts
View answer (1)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in Jun 2024. There were 3 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Basic Java related questions, OOPs concepts
  • Q2. Write code for encryption of the code
  • Ans. 

    Encryption of code involves converting plaintext into ciphertext to secure data.

    • Choose a strong encryption algorithm like AES or RSA

    • Generate a key for encryption

    • Encrypt the plaintext using the key and algorithm

    • Store or transmit the ciphertext securely

  • Answered by AI
Round 2 - One-on-one 

(2 Questions)

  • Q1. Java Related questions, also some system design-related questions
  • Q2. Show the abstraction and write code for function overriding
  • Ans. 

    Abstraction is hiding the implementation details, function overriding is providing a new implementation for a method in a subclass.

    • Abstraction involves hiding the complex implementation details and showing only the necessary features to the user.

    • Function overriding occurs in inheritance when a subclass provides a specific implementation for a method that is already defined in its superclass.

    • Example: Parent class 'Anima...

  • Answered by AI
Round 3 - Behavioral 

(1 Question)

  • Q1. Normal questions related to projects and work ethics

Skills evaluated in this interview

Top PayPal Software Engineer Interview Questions and Answers

Q1. Cycle Detection in a Singly Linked List Determine if a given singly linked list of integers forms a cycle or not. A cycle in a linked list occurs when a node's next points back to a previous node in the list. Thus, the list does not have a ... read more
View answer (1)

Software Engineer Interview Questions asked at other Companies

Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person... read more
View answer (199)
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Nov 2024. There were 3 interview rounds.

Round 1 - Coding Test 

Coding test was on HackerRank

Round 2 - Technical 

(1 Question)

  • Q1. Easy-Medium DSA Questions
Round 3 - HR 

(1 Question)

  • Q1. Asked from my resume

Software Engineer Intern Trainee Interview Questions asked at other Companies

Q1. find average salary of employees from given table for each designation where employee age greater than 30
View answer (1)
Interview experience
4
Good
Difficulty level
Easy
Process Duration
2-4 weeks
Result
No response

I applied via Approached by Company and was interviewed in Aug 2024. There were 2 interview rounds.

Round 1 - Coding Test 

Javascript questions on Hacker rank with pair programming

Round 2 - Technical 

(2 Questions)

  • Q1. Adv javscript questions
  • Q2. React code writing in hacker rank
  • Ans. 

    The question involves writing React code in HackerRank.

    • Understand the requirements of the task before starting to write the code.

    • Use React components to create a user interface.

    • Handle state management and user interactions using React hooks.

    • Write clean and efficient code to solve the problem.

    • Test the code thoroughly before submitting.

  • Answered by AI

Staff Software Engineer Interview Questions asked at other Companies

Q1. How will you open a file whos size is double that of RAM on your system.?
View answer (1)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
-

I was interviewed in Oct 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. Design Rate Limiter LLD
  • Q2. What are SOLID Principles? Springboot questions

Interview Preparation Tips

Topics to prepare for PayPal Senior Software Engineer interview:
  • LLD

Senior Software Engineer Interview Questions asked at other Companies

Q1. Tell me about yourself. What technology are you using? What is a Collection? What are the different types of collection there? What is the difference between ArrayList and LinkedList What are the basic building blocks of Stream operators, s... read more
View answer (2)

PayPal Interview FAQs

How many rounds are there in PayPal interview?
PayPal interview process usually has 2-3 rounds. The most common rounds in the PayPal interview process are Technical, Coding Test and One-on-one Round.
How to prepare for PayPal interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at PayPal. The most common topics and skills that interviewers at PayPal expect are Financial Services, SQL, Python, Wellness and Analytics.
What are the top questions asked in PayPal interview?

Some of the top questions asked at the PayPal interview -

  1. Input a file. Select first 3 lines of the file. Select the longest line and cou...read more
  2. But amazon can do the search in O(n). Why it has to go for O(nk)? For data stru...read more
  3. When you search for a particular product in amazon, it displays some of the sea...read more
How long is the PayPal interview process?

The duration of PayPal interview process can vary, but typically it takes about less than 2 weeks to complete.

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PayPal Interview Process

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Interview experience

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PayPal Reviews and Ratings

based on 919 reviews

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3.5

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4.0

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4.0

Salary

3.1

Job security

3.9

Company culture

3.1

Promotions

3.5

Work satisfaction

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Chennai

5-10 Yrs

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Sr. Product Manager 1 - Technical

Bangalore / Bengaluru

7-12 Yrs

₹ 18.3-40.05 LPA

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