Amazon Interview Questions

Anonymous Giraffe - "this is not a helpful interview, she seems so unprepared, confusing, unable to netting it out :("See full answer

Dhruv M. - "During my internship at Datavibe Insights, I was initially brought on to assist with routine data cleaning and Excel reporting for the procurement team. My main task was to support weekly report generation, but I noticed inefficiencies in how data from multiple vendors was being manually compiled and formatted each week. Without being asked, I took the initiative to build an automated reporting tool using Excel Power Query and macros. It cleaned, merged, and visualized the data with a few clicks"See full answer

Kirit K. - "Had to refactor code at recent startup after having it fully deployed and working. This was due to us hitting some performance and UX issues. What I did was refactor the core engine first myself, and then line up a work team to progressively refactor the edges and exception flows that sit around the core. Completed in 4 weeks."See full answer

Anuradha T. - " I will attempt to answer this. Barnes and Nobles Nook, although Amazon had an advantage in terms of being early to market (2007) with the Kindle, B&N Nook could have been marketed Nook more creatively, given that B&N has access to massive inventories of books in digital format. It fell short of: Focusing on the differentiation in marketing Being aggressive in marketing tactics by promoting the Nook at events, webinars, out-of-store marketing Attracting the user base by highlighting the m"See full answer

Sourabh G. - "Functional Requirement Monitor health, metrics Alert in case of failure/anomaly Visualize the live health Analyse machines on periodic basis Non Functional Should not exert load on machines low latency Highly scalable Logs/Metrics Gathering push - machine gather and send to system and low priority background thread along with batching pull - heart beat check (for offline machines) Processing Real time streaming using Kafka/kinesis + Flink TimeSeries database for stor"See full answer

Rolemberg J. - "I faced a problem about components re-rendering's and unnecessary requests API's which was causing performance complications in my applicactions. I had a structure that create, edit and delete task, so GET, POST, PUT and DELETE API's methods request was necessary and bring that to compliance without compromissing the performance is hard. I started involving componentes and async functions into the useMemo's and useEffect's to have more control, another improvement was take be careful with global"See full answer

Ben G. - "Ask Follow up Questions Is this for specific type of user or open? Do we have any past research that has been done? Do we have an idea of company and user goals? Do we have metrics of success? Are there any existing constraints? Why  |  5 min Why is this product or feature important? How does this product benefit customers? What business opportunities does it create? What is our hypothesis? What are our company goals? Who  |  3 min Who are the different types"See full answer

Anonymous Unicorn - "input_logs = [ f"{senderid} {receiverid} {transaction_count}" "1 2 2", "3 2 42", "2 2 22", "1 1 12", "2 1 1", "2 5 4", "4 2 15" ] input_threshold = 20 exptected_output = [ list of user_ids that made more than 20 transactions sorted by number of transactions in descending order "3", # 42 transactions "2", # 27 transactions (22 + 1 + 4) #"4", # 15 transactions #"1" # 14 transactions (2 + 12 + 1) ] def gettopapi_users(logs, thres"See full answer

Alemayehu m G. - "I would try to understand their perspective, focus on the issue, find common ground, brainstorm solutions, and agree on a course of action."See full answer

Ash I. - "Follow STAR Example: In my most recent role at x, we've been working every quarter to set our quarterly goals or even decide for the year but given in 2022 we've been through a great resignation phase there was a high attrition because of which we have overloaded engineering teams. During last quarterly planning, I started to question with my manager about giving a focus to our engineering, so we complete one thing absolutely fine which is more impactful for our customers and add immediate val"See full answer

Woongshik C. - "Our team were developing a HQ trivia for fitness. So at that moment our focus was developing an eye-catching animation for both iOS and Android. By the way, implementing an animation were hard without the progress of it. So we wanted to see an immediate progress. So I decided to use tools or libraries such as Lottie or Kite. Then it increased the quality and the productivity dramatically. So our designer were happy with it and also our dev team could reuse the code from the designed animation fr"See full answer

Vik S. - "why we are not using sklearn for doing this ??"See full answer

Smriti G. - "Product -> Self service Portal North Star Metric-> No. of proposal downloaded Problem-> 15% Decrease in Proposal downloads RCA-> System Health check-> Bugs, errors in pages during session, site crashed, server inavailability, new feature was introduced which made it difficult for user to navigate. If there was problem of server in-availability, is load balancer working fine/server is not available? If problem was with feature-> What feature was introduced? do an A/B test with older feature Fu"See full answer

Shakshi R. - "def buildTree(self, preorder: List[int], inorder: List[int]) -> Optional[TreeNode]: if not preorder or not inorder: return None root = TreeNode(preorder[0]) mid = inorder.index(preorder[0]) root.left = self.buildTree(preorder[1:mid+1], inorder[:mid]) root.right = self.buildTree(preorder[mid+1:], inorder[mid+1:]) return root"See full answer

Vijay P. - "Explained in STAR format one of the project situation where I had to collect data points by deploying a minimum viable product due to unclear business requirements/dynamic nature of business. Emphasized on exact data points and how they strategically used to iteratively deploy improved version of product."See full answer

Tom - " "See full answer

Nithesh S. - "Before getting into the solution aspect, let us revisit Amazon's mission. Mission: Amazon is guided by four principles: customer obsession rather than competitor focus, passion for invention, commitment to operational excellence, and long-term thinking. Participants: Therefore any improvement in the marketplace should be in sync with this thought process. Participants in the marketplace have both buyers and sellers. We can improve the platform either of them or both of them. **Wh"See full answer

Scott S. - " Situation In the derivatives trading domain, timely and accurate data is crucial for making informed trading decisions. Our existing data processing system was facing challenges with latency and scalability, which hindered our ability to react swiftly to market changes. To address these issues, we designed a new real-time market data processing platform. Task The task was to develop a low-latency data processing platform that could handle real-time market data ingestion, processing, an"See full answer

Pm P. - "Clarification: What does "share" imply? is it the action of sharing the app or website ? My assumption here we are not talking about stock market share :P, other factors come into play there. Diving-in: I would like to classify the questions into 2 buckets Internal Do we have data on which platform the shares increases and split up by Mobile and if mobile via app or via browser, split by apple/android, split via desktop, tablet . Essentially source of the shares. What this will t"See full answer