Interview Questions

Jeff M. - "At Evernote and Wise, I've created a personalized approach for working more efficiently I've taught to coworkers with either our own proprietary software and off the shelf software. With Evernote, I did this by creating a hyper personalized templates for responding to customer concerns. With Wise, it's been a reworking of their traditional way of approaching Due Diligence and use of resources"See full answer

Emmanuel M. - "nothing"See full answer

Luke P. - "A full stack developer could be summarized as the person who both writes the APIs and consumes the APIs. They are familiar with Databases/Data-layer services, middle-layer/application services and business logic, and finally familiar with the consumers whether front-end applications/UIs or other systems. They can understand the trade-offs up and down the stack, where to adjust along the service-call-path. Ideally they are comfortable programming both async calls (front end javascript promises, e"See full answer

Shubh T. - "Clarifying Qns: Note: How do we define DAUs? Let's say it's open ended and based on general engagement (watch time, comments, etc.) Did the watch time went down and comments went up for the same videos or are we saying total watch time and total comments on Youtube? (Total) I am assuming we are not including Youtube Live videos because those are typically live chat 1000’s of comments for a single video. (Correct) Do we know if these two could be independent problems not correlated wit"See full answer

Keval B. - "I would evaluate by comparing the results of old and new ranking algorithms, based on number of false positives."See full answer

A S. - "Clarified with interviewer: How it is used ? user will give facebook page of school as input What is the criteria for declaring school as duplicate ? same name and location used exposed APIs of parent service to create and maintain a inverted index [msg queue+spark]. Duplicate matching service will use elastic search [and filter out input school page]. Elastic will search and return results of school name and geospatial matching ."See full answer

Alan T. - "The difference between convex and nonconvex functions lies in their mathematical properties and the implications for optimization problems. Convex Functions:A convex function has a shape where any line segment connecting two points on its graph lies entirely above or on the graph. This property ensures that any local minimum is also a global minimum, making optimization straightforward and reliable. Convex functions are critical in machine learning and optimization tasks because of th"See full answer

Exponent - "This is a Design a Product question. For this, we'll want to follow the formula for success: Ask clarifying questions Identify user types, behaviors, and pain points State the goal and use cases List current solutions Improvements / net new solutions Evaluate and select solutions Measure Success Summarize Ask clarifying questions It's important to get clarity on anything unclear. Asking questions also helps us limit scope early on s"See full answer

Exponent - "This problem tests your ability to make sense of strategic business decisions. Don't feel pressured to start speaking immediately — you should feel free to take a few moments of silence to come up with some sound arguments. This makes your answer sound more measured and thought through. For this question, there are a few lines of reasoning you can go with. Data > LinkedIn was, and still is, the largest professional social network on the web. Since almost every high-powered executive and senio"See full answer