Summary
I applied through LinkedIn and after an assessment and three rounds of interviews (two technical, one hiring manager), I received an offer for a Software Engineer position at Visa Inc.
Full Experience
I applied for the position through LinkedIn and received an assessment link the very next day. Two months later, I was invited for an interview. The selection process consisted of three rounds: two technical interviews and a hiring manager round. After a few weeks of waiting, I finally received a call from HR confirming my selection.
Round 1 (OA): Duration: 75 mins Total questions: 4 First two questions are easy, 3rd is leetcode medium and 4th one is slightly hard. Topics: array, queue for 1st and 2nd respectively. 3rd was on matrix and 4th one is on graph.
Round 2 (Technical Round 1): Duration: 50 mins 1 DSA question similar to https://leetcode.com/problems/number-of-matching-subsequences/
questions on JAVA, SpringBoot and SQL.
- Difference between SQL and NoSQL.
- Microservice architecture.
- Filters in SpringBoot.
- Authentication vs Authorization.
- super() and memory allocation(Heap and stack) related questions
Round 3 (Technical Round 2): Duration: 50 mins 1 DSA question similar to https://leetcode.com/problems/house-robber-ii/description/
questions on React, SpringBoot, Java
- What are react lifecycle methods?
- How to handle errors in react?
- What is Dispatcher Servlet in Spring?
- How you approach you solution to build a new microservice? (Interviewer was asking about choosing of db, asynchronization, cache, etc).
Round 4 (HM round): Duration: 50 mins This was a great round where interviewer ask about my projects and current company work. there is no technical questions in this round just normal behaviour and current work related questions.
Interview Questions (11)
What is the difference between SQL and NoSQL databases?
General questions about Microservice architecture.
Questions about Filters in SpringBoot.
Explain the difference between Authentication and Authorization.
Questions related to Java's super() keyword and memory allocation concepts like Heap and Stack.
What are React lifecycle methods?
How do you handle errors in React applications?
What is the Dispatcher Servlet in Spring?
How would you approach designing and building a new microservice? (Interviewer specifically asked about choosing a database, asynchronization, caching strategies, etc.).
Summary
I interviewed for an SDE-1 position at Visa Inc and was accepted. The interview process consisted of four rounds covering DSA, System Design, Java SpringBoot, behavioral questions, and team fit.
Full Experience
Visa Inc SDE-1 Interview experience (round 4) [3 round already appeared]
Round 1 - DSA, Round 2 - General Resume & System Design concepts, Round 3 - HM
Round 4 for another team, team fit + java springboot & work related
Verdict - Selected
Comp - Base 17LPA, Annual pay 20.1LPA
Stocks 18,000 USD over 3 years
Interview Questions (16)
Can you list some new features introduced in Java 17? (Follow-up: I mentioned Java 8 & 11 features like streams, optionals, lambda etc.)
Given a List of Emp POJOs (with name, id, etc.), how would you filter it using Java Streams to find employees whose name starts with your first name?
Using the same List of Emp POJOs, how would you sort it in reversed order using Java Streams? (Follow-up: The interviewer was fine with list.sort + Comparator lambda, and asked about Comparator & lambda.)
Can you describe the different Map implementations available in Java?
Explain how a HashMap works internally in Java. (Follow-ups: hash collision (chaining, open addressing, double hashing); again asked about chaining; TC of chaining insert; how to improve TC; interviewer hint about ordering & trees; AVL trees as values was the answer)
What version of Spring Boot do you use?
Explain what Dependency Injection is in Spring Boot and its advantages. (Follow-up: benefits of DI; follow-up about what is singleton)
If a prototype bean is autowired inside a singleton bean, would it still act like a prototype, meaning a new instance is created each time?
What types of databases have you used? (Follow-up: is HanaDB SQL or NoSQL?)
Given a table with columns id and gender, write an SQL query to find the count of males and females.
Given a list of words, find the longest common prefix among them.
Flipped the previous question to find the longest common substring among words.
Tell me about a time you faced a significant challenge and what you learned from that experience. (Follow-up questions related to work discussion)
This job can sometimes be very monotonous. How do you deal with such situations?
How do you stay up-to-date and relevant with what's happening in the tech field?
What are your thoughts on Generative AI?