Interview Questions

Irma M. - "In this question, we don't want to jump the gun and say "yes, there should definitely be 2 different apps". Maybe there should be instead of jumping to building two apps, we must first ask a few questions and diagnose the problem, use case, and smallest amount of work we can do to get a return on data. I'd first look at the long term mission or value of Robinhood. Is it to make investing more accessible to novice investors or to focus on building up portfolios of veteran investors and recognize"See full answer

Roger R. - "Get data from database CDC to Kafka; Write from Kafka to a Bucket; Send the batch file to Visa from time to time;"See full answer

Develop games G. - "asdsad"See full answer

M N. - "Ideas: Book a ride ahead of time on an app and provide timeslots. Have longer hours just for these rides so that people who care enough can go earlier. Distribute the demand by splitting a one-day ticket into 2 days so that traffic is distributed into 2 days. Fast pass add-on that lets you buy a fast pass for a specific ride instead of a combination. Have 2 of the top 3 popular rides and remove unpopular rides to use the space. Create a VR version of popular ride at the park so"See full answer

Ben G. - "Situation - A time I saw a peer struggling was while I was at Google working in Mountain View. A fellow colleague of mine was consistently not meeting standards in his performance reviews and wasn’t sure why. He was upset because Google was his dream company and he wasn’t sure how to improve based on his feedback. Task - I was tasked to design a based VUI framework for our discovery space on smart displays. This colleague was acting as the VUI lead for the project while I acted as t"See full answer

Ben G. - "In my time as a product designer, I’ve seen a transition of growth from something that is visually appealing to what is actually useful / functional / scalable. I think as designers, we are afraid to let things go such as the visual fidelity of design and how something could be useful but not necessarily have the flash of a more consumer based product. I think when we learn to let that go, we can see the scale of our impact and that we aren’t just people who make something look good/pretty but t"See full answer

M N. - "Assuming alternative for commuters currently is public transport. Commuter painpoints: Public transport timings are not reliable Paying fare, buying tickets, refilling fare cards can be cumbersome. Safety Current rideshare options are expensive Getting to public transport stations is inconvenient. Potential solutions: Improve public transit ETA accuracy on Lyft app using historical data and better data integration with transit companies. Integrate with multiple public tra"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

Abhilash K. - "Minimum viable product is a product with a minimum set of features that are sufficient to gather information if customers are going to use it or are sufficient to answer the questions for the problems that are we are specifically trying to solve. In order to prioritize features it is critical to consider following points. What is the problem we are trying to solve? Understand the context. Identify the features that you need to solve the problem while ensuring that features are in sync with"See full answer

Abinash S. - "While running the testloop I am getting an error RuntimeError: runningmean should contain 28 elements not 38. I think it's the difference between the categorical features in train and test. `"See full answer

Madhumita M. - "Attempted the answer. Feedback appreciated. Thanks! Mission: LinkedIn mission statement is to “connect the world's professionals to make them more productive and successful.” LinkedIn Feed: People You Know, Talking About Things You Care About. One of things can be done is look for Existing engagement metrics that LinkedIn news feed may have. Look for data where engagement is low and understand why and come up with a hypothesis for that. For this exercise will assume there is no pro"See full answer

Saipranay M. - "During the early learning stages of my career as a data scientist, I struggled to fully grasp the concept of patterns in seemingly random events. Despite thorough research, I remained skeptical about the universality of this idea. However, my perspective changed during a surprising scuba diving experience while on vacation. The underwater world I encountered not only amazed me but also gave me a key insight into patterns in nature and data analysis. As I dove into the clear waters, I witnessed"See full answer

Tiago R. - "function visitChildren(node) { let leftSubtreeHeight = 0; let rightSubtreeHeight = 0; let isChildrenBalanced = true; if (node.left) { const { isBalanced, height } = visitChildren(node.left); isChildrenBalanced = isChildrenBalanced && isBalanced; leftSubtreeHeight += height + 1; } if (isChildrenBalanced && node.right) { const { isBalanced, height } = visitChildren(node.right); isChildrenBalanced = isChildrenBalanced && isBalan"See full answer

Rajesh P. - "I covered the following area - Working with the Stakeholders, setting miles stones, delving deep into the area and understanding what success look like and defined it with metrics, created dependency and reviewing the progress against the milestones planned. To keep everyone updated on the program, sent a monthly newsletter on the program. During this phase I also identified opportunity to improve the engineering pace"See full answer

Ugo C. - "function merge(L1, L2) { let L3 = { data: null, next: null }; let prev = L3; while (L1 != null || L2 != null) { if (L1 == null) { prev.next = L2; L2 = L2.next; } else if (L2 == null) { prev.next = L1; L1 = L1.next; } else if (L1.data < L2.data) { prev.next = L1; L1 = L1.next; } else { prev.next = L2; L2 = L2.next; } prev = prev.next; } return L3.next; }"See full answer

Glados - "Strategy of 15 minute delivery apps. I will discuss what delivery apps are, what is their current business model, examples of some delivery apps, any market metrics/share, opportunity, how 15-minute delivery apps fit in, challenges/opps, what's next, takeaways. Clarifying questions Are we focused on North America? Any other geo? Delivery apps -> Assumed to be food/grocery/alcohol delivery not packages (Amazon)? Assumed delivery apps for end-consumers not large businesses? Delivery apps o"See full answer