Amazon Interview Questions

Kofi N. - "const mergeIntervals = (intervals) => { const compare = (a, b) => { if(a[0] b[0]) return 1 else if(a[0] === b[0]) { return a[1] - b[1] } } let current = [] const result = [] const sorted = intervals.sort(compare) for(let i = 0; i = b[0]) current[1] = b[1] els"See full answer

Anonymous Anteater - "select employeename, employeeid, salary, department, DR from ( select employeename, employeeid, salary, dense_rank() over (partition by department order by salary desc) DR, department from employee ) where DR <=3 order by department, DR"See full answer

Ra E. - "You deploy the member for a retraining depending on the task ahead"See full answer

Dhruv M. - "While interning at Numerix Analytics, I was working on a campaign analysis project where I used customer engagement data to recommend which email subject lines performed best. Based on open rate data from the past two campaigns, I concluded that short, curiosity-based subject lines were outperforming more direct ones. I recommended using that style for the next major campaign. The marketing team followed my recommendation. However, the open and click-through rates for the next campaign dropped s"See full answer

Scott S. - " Last year, we were in the midst of a critical project to develop a new machine learning-driven risk analytics platform. This platform was intended to provide real-time risk assessments and predictive insights to enhance our trading strategies. However, midway through the project, our project lead unexpectedly had to take an extended leave of absence due to a personal emergency. This left the team without clear leadership during a crucial phase of the project. Stepping into the Leadership R"See full answer

Anonymous Tortoise - "Questions? -Geography - US/ International Model? SEXY? Model 3 Most used. Timeline - 3 Quarters? Increase engagement? - Existing people Tesla - Electric company that builds EV cars. Mission- To accelerate the world's transition to sustainable energy? Mission Why - To increase the engagement - active users Recent Trends - Apps are rising on Apple Watch Ease of Use? Portability? Customer Segments New people who bought Tesla Existing People Models - Model 3 Fleet Owners ["See full answer

Ritu G. - "In order to earn team members trust you need to show - 1- You need to show them you trust them. Treat others the way you wanted to be treated. 2- Do what you say. Keep commitments. 3- Listen 4- Admit when you make mistakes 5- Consistently make good decisions "See full answer

Hamzeh H. - "S – Situation: In a university project, my team was building a collaborative code editor. As part of the functionality, we needed a login system so users could securely access their sessions and collaborate in real time. T – Task: I was responsible for implementing the authentication system. Initially, I planned to build the entire login system from scratch, including user management, password storage, and session handling. But as the deadline approached, I realized that implementing thi"See full answer

Jagat mohan B. - "Found bug will not impact on the new requirements, if the engineering team aware of the source of the bug and the severity, than it can easily be handled and regression test to perform for a quality check. The new requirement should be equally prioritize for groom and start creating task and team to work on it. Finally based on the severity of the bug you can shuffle the resources between these items."See full answer

Aymen D. - "It would have been more interesting to focus on the system design rather than the Trie DS, Interviewee could have just mentioned the Trie and passed to things more important. Interviewee should have focused on the factors on which he wants to scale the API servers, popularity of the query parts ? region may be ? A hash of many factors ? Caches should have definitely be discussed, Cache eviction policies, Cache invalidation managements... Interviewee should have mentioned which kind of API pro"See full answer

Sankar S. - "We will not always have all the required data to make a decision quickly. We need to work with ambiguity effectively by tying up the available facts with intuition."See full answer

Simran S. - "I recently led the development and implementation of a data analytics platform tailored for credit unions and mortgage companies, which was suffering from fragmented systems, inconsistent data fields across LOS platforms, and outdated reporting practices. Here's how I managed the full lifecycle: ✅ Initiation / Discovery Conducted executive interviews across five financial institutions to understand reporting and visibility gaps. Shadowed loan officers and underwriters"See full answer

Teja G. - "To design a scalable ticketing system for peak events like Black Friday, you must employ a microservices architecture, implement robust load balancing, leverage caching, and use a combination of NoSQL and relational databases for different data types. Key features also include real-time seat booking, secure payment integration, mobile compatibility with QR code validation, robust admin dashboards for analytics, and integrated marketing tools like promo codes. The system needs to prioritize avail"See full answer

BePostive - "· Listen both sides and without any bias. Support or focus on the problem rather than person. Take necessary steps in case there is middle ground its well and good if both parties agree. If not be honest and support the person who is correct. Ultimate goal is to be useful for overall project and company rather individual satisfaction. The approach should be fit into overall team goal."See full answer

Vijay P. - "Explained in STAR format one of the project situation where I had originally approved problem with different design which was correct approach that time. But as the project progressed that approach needed revision. Emphasized on facts why original approach was taken with points. Also focused tail end of discussion on learnings out of situation and how you end up deploying better solution from that learning."See full answer

Singer29 - "Let me tell you about a time when my manager was on a two week PTO and I was building the post-MVP roadmap for a newly launched product. Being a SaaS platform for supporting restaurants, I'd led the conception, planning, development and launch of the MVP for an online ordering solution for diners in restaurants. After the launch of the MVP, our original plan was to build features which supported table-service restaurants like keeping an open tab. But while looking at the data, I realized that a"See full answer

Hans - "Situation: Was given negative feedback about an aspect of my communications. The person said it made them worried because of the brevity and the format of some messages. (Their worry was that a longer negative message was coming) Task(s): Reflected on feedback about my communication style. Acknowledged the point. Assumed best intentions on the part of the person giving the feedback Saw things from the other person's point of view Action(s): In private - Apologised to the person wh"See full answer

Eduardo C. - "I started asking some questions regarding the constrains of the system: An antena is emitting a signal that says if the tagged device was out of the room where the interview was happening. I was able to decide which would be the schema for the Antena's message. The antena is sending the info of multiple users. The system doesn't need to push notification to the users when the user left the device behind. Upon reflection, this is what I recollected doing. I propuse the json schema a"See full answer

Ushita S. - "The back-of-the-envelope calculation is very well done!"See full answer