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The first round was a coding test, which was outsourced to an external vendor. I was asked 2 basic DSA questions, and there was discussions around the time and space complexity, and scope of optimizing the solutions. Post that there were a few questions around Spring Boot features and basic system design. The interviewer was professional throughout the interview, and the interview process felt more like a discussion, as compared to the standard interview process.
There was another round of coding - this time conducted by the organization itself. It consisted of a medium level DSA question on stacks. I wrote the code on my personal IDE and executed it there itself. The interviewer discussed about the possible edge cases and how I would deal with them. Post solving the question I was asked about my previous projects.
This was the final round where the discussion was largely around system design and HLD. It started off with questions are system design patterns and concepts. Then I was asked to design a booking design, with discussions around concurrency control and transaction management.
I applied via Company Website and was interviewed in Jun 2024. There were 2 interview rounds.
1 hour - Reverse linked list k at a time
Java 8 stream setup involves creating a stream from a collection or array and applying operations like filter, map, and reduce.
Create a stream from a collection using stream() method
Apply operations like filter, map, and reduce to process elements
Use terminal operations like collect or forEach to get the final result
CAP Theorem states that in a distributed system, it is impossible to simultaneously achieve consistency, availability, and partition tolerance.
Consistency: All nodes in the system have the same data at the same time.
Availability: Every request gets a response, even if some nodes are down.
Partition Tolerance: The system continues to operate despite network partitions.
Examples: MongoDB prioritizes consistency and partiti...
DynamoDB is a fully managed NoSQL database service provided by AWS, designed for high performance and scalability.
DynamoDB is schema-less, allowing for flexible data models
It offers high availability and durability through replication and automatic backups
DynamoDB uses primary keys for data retrieval, with optional secondary indexes for querying
It supports ACID transactions for consistency and reliability
DynamoDB is de...
A function is a standalone block of code that can be called independently, while a method is a function that is associated with a class or object.
Functions are standalone blocks of code, while methods are functions associated with classes or objects.
Functions can be called independently, while methods are called on specific instances of classes or objects.
Functions are defined outside of classes, while methods are defi...
Implement a dynamic programming solution for stock buy and sell problem.
Use dynamic programming to find the maximum profit by buying and selling stocks.
Keep track of the minimum stock price seen so far and update the maximum profit accordingly.
Consider edge cases like no profit or negative profit.
Example: Input [7, 1, 5, 3, 6, 4], Output 5 (buy at 1, sell at 6)
Oportun interview questions for designations
I applied via Referral and was interviewed before Jul 2022. There were 5 interview rounds.
Angular has a life cycle consisting of several phases that a component goes through from creation to destruction.
Angular components go through several life cycle hooks such as ngOnInit, ngOnDestroy, etc.
ngOnInit is called after the component has been initialized and its data-bound properties have been checked.
ngOnDestroy is called just before the component is destroyed.
Other life cycle hooks include ngOnChanges, ngDoCh...
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The aptitude round consists of approx 20 q's, out of which half the q's were based on LR and aptitude and half based on computer fundamentals.
The coding test consisted of 4 q's. The selection criteria was to complete at least 3 q's.
I am a passionate software engineer with experience in developing web applications using various technologies.
Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular
Proficient in backend development with Node.js and databases like MongoDB and MySQL
Familiar with version control systems like Git and project management tools like Jira
I applied via Campus Placement
Consisted of basic dsa questions and time complexity questions
4 dsa questions to be solved in one hour
posted on 28 May 2023
I applied via Approached by Company and was interviewed in Nov 2022. There were 2 interview rounds.
posted on 21 Dec 2024
I applied via Referral and was interviewed in Nov 2024. There was 1 interview round.
DSA medium level questions regarding stack, queue , arrays
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