PayPal Interview Questions

Alfred O. - "We can use dictionary to store cache items so that our read / write operations will be O(1). Each time we read or update an existing record, we have to ensure the item is moved to the back of the cache. This will allow us to evict the first item in the cache whenever the cache is full and we need to add new records also making our eviction O(1) Instead of normal dictionary, we will use ordered dictionary to store cache items. This will allow us to efficiently move items to back of the cache a"See full answer

Ra R. - "In my time at Snapp! I was in charge of communicating the product backlog to our CEO. We had a shared Jira board that he had access to and I made specifically for him. One day he saw me in the office and said he doesn’t know anything about our backlog and that’s because I failed to communicate with him. I got upset at first because of the fact that I made the dashboard exclusively for him. But I tried to ask questions to understand his point of view in depth. He then mentioned he doesn't have t"See full answer

Kishor J. - "we can use two pointer + set like maintain i,j and also insert jth character to set like while set size is equal to our window j-i+1 then maximize our answer and increase jth pointer till last index"See full answer

Ani T. - "User Need Not Being Met by the Market: Instant, Seamless Cross-Border Refunds Identifying the Gap- One major gap in the digital payments industry is the lack of instant, seamless cross-border refunds for consumers. Currently, international refunds take days or even weeks due to exchange rate fluctuations, banking delays, and compliance checks. This creates frustration for users, especially in e-commerce, where consumers expect instant refunds like they receive for domestic transactions. Pain Poi"See full answer

Pratik H. - "You're a PM for Uber Eats. Cart conversion has dropped by 10% in the last 3 months. How would you find the root cause? Clarify- 1) What is conversion? Is it where they complete the order after adding it to cart?- Yes 2) Has this drop been sudden or over an extended period of time?- Its been over the past month 3) Is this localized to somewhere? Seems to be only in the US Uber Eats is a business that delivers food and various goods to customers that buy them. Its a 3 sided marketplace wher"See full answer

Clayton P. - "The interviewer hinted that a two-tower recommender system might be a suitable approach, using user history to embed users and pages separately and train on view or interaction data. Instead, I proposed a different approach that I felt was more aligned with how knowledge is structured in Confluence: I designed a system using a graph database to model the relationships between Confluence pages. Each page is a node, and edges represent content-based references. For example, when one article"See full answer

Laksitha R. - "public static int maxProfitGreedy(int[] stockPrices) { int maxProfit = 0; for(int i = 1; i todayPrice) { maxProfit += tomorrowPrice - todayPrice; } } return maxProfit; } "See full answer

Abhijit B. - "I would start with the User feedback- both explicit (from surveys) and implicit(from Product insights on app usage/drop offs). Then understand the business direction/priorities that Paypal wants to take with Venmo and come up with a Iteration plan that starts with "low hanging fruit" first and then builds to more ambitious products. The goal is to find features that are at the intersection of "valuable(to users), feasible(for dev) and usable(to users) . Once we prioritize these features, I would"See full answer

Gundala tarun,cse2020 V. - "#include // Naive method to find a pair in an array with a given sum void findPair(int nums[], int n, int target) { // consider each element except the last for (int i = 0; i < n - 1; i++) { // start from the i'th element until the last element for (int j = i + 1; j < n; j++) { // if the desired sum is found, print it if (nums[i] + nums[j] == target) { printf("Pair found (%d, %d)\n", nums[i], nums[j]); return; } } } // we reach here if the pair is not found printf("Pair not found"); } "See full answer

Ankit kumar S. - "To analyze a year-over-year (YoY) slowdown in transactions, you should start by understanding the context, segmenting data, identifying potential drivers, and then formulating actionable recommendations. This involves a structured approach that includes a thorough examination of the data, both internally and externally. Understand the Context: Define "transactions": What specific transactions are being analyzed (e.g., website purchases, in-store purchases, total transactions)? Timeframe: Sp"See full answer

Rick E. - " from typing import List def getnumberof_islands(binaryMatrix: List[List[int]]) -> int: if not binaryMatrix: return 0 rows = len(binaryMatrix) cols = len(binaryMatrix[0]) islands = 0 for r in range(rows): for c in range(cols): if binaryMatrixr == 1: islands += 1 dfs(binaryMatrix, r, c) return islands def dfs(grid, r, c): if ( r = len(grid) "See full answer

Dev S. - "Clarfying questions : When we say a decrease in users adding the bank accounts. I would like to understand how the users making payments within Venmo I assume they are either using their credit cards/debit cards? I would like to understand why the Adding of Bank Accounts is integral to Venmo since the users are using the debit card and Credit Cards. My understanding is when the payments happen through debit cards rails Venmo pays higher interchange fees and to Reduces any losses incurred"See full answer

Azeezat R. - "/* You are with your friends in a castle, where there are multiple rooms named after flowers. Some of the rooms contain treasures - we call them the treasure rooms. Each room contains a single instruction that tells you which room to go to next. * instructions1 and treasurerooms_1 * lily* --------- daisy sunflower | | | v v v jasmin --> tulip* violet* ----> rose* --> ^ | ^ ^ | "See full answer

Mahaboob P. - "int[] sqSorted(int[] nums) { int i = 0, j = nums.length-1; int k = nums.length-1; int[] sqs = new int[nums.length]; while(i n1) { sqs[k--] = n2; j--; } else { sqs[k--] = n1; i++; } } for(int n: sqs) System.out.println(n); return sqs; }"See full answer

Greg W. - "PayPal makes money from: Processing fees from merchants - traditional checkout and buy now, pay later P2P transfers using credit cards Instant money transfers on P2P and to bank accounts Lending products (paypal credit) Cross border fees (Xoom) Crypto trading fees"See full answer

Exponent - "This is a classic Strategy Question, which asks you to justify high-level business decisions and strategy. With many acquisition strategy questions, we can first look at core competencies and synergies before offering more complex reasoning. > I remember that - it made huge headlines around late 2019. I definitely think there are a few solid reasons why your team may have made this acquisition, for example:Incentivize retailers to use PayPal > Leverage PayPal tech resources to grow Honey > O"See full answer

Divya R. - "static int trapRainWater(int[] height) { if(height.length=0; i--) { rightBound[i]=Math.max(rightBound[i+1], height[i+1]); } int trapWater=0; for(int i=0; i<height.length; i++) { trapWater+=Math.max(0, Math.min(leftBound[i], rightBound[i])"See full answer