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PayPal Interview Experience for SDE-2 (3.6 Years Experienced)

I have applied for the SDE-2 role through Instahyre. Got a call from HR and then a test link was sent to me.Round 1(Online Assessment): Online Assessment on HackerEarth.There were three DS-Algo questions. Questions are categorized based on various levels: Easy, Medium, and Hard.I have solved 2 questions with all test cases being passed and one partially solved because some of the test cases were giving Time Limit Exceed.I got a call from HR of Paypal after 3-4 days of this test.Round 2(DS Algo & Problem Solving): This round was totally focused on Data structure & algorithms. There were two questions asked and some basic Java Questions.LCA of Binary Tree0/1 KnapsackWorking of ConcurrentHashMapGenerics in Java, ThreadLoacal, What is Future object and how Future is different from CompletableFutureRound 3(LLD+Problem Solving):Design a Cache that can store value against a key. Also, the cache eviction policy and capacity should be configurable. You need to follow SOLID principles and Design Patterns while designing the same.Later, the interviewer asked that if I have to take care of a Multi-Threaded environment – How would I do that? (only explanation was required).Remove duplicates from given LinkedList.Round 4(System Design):Questions from my resumeDesign Whatsapp-like messaging app.Too many questions were asked about the choices you make, tradeoffs, network protocols you will use for real-time communication and how can we extend this to implement end-to-end encryption.Round 5(Techno Managerial): This was also a technical round.Clone a graph (Deep Copy)Design a scalable service that stores some secret pieces of information.Project-related questions.Cultural fit and behavioral questions.Round 6(HR):Cultural fit and behavioral questions.CTC and Stocks discussionsResult: SELECTEDAttention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course. In case you are prepared, test your skills using TCS, Wipro, Amazon. Google ,  E-Litmus and Microsoft Test Serieses.