Hi Everyone , I recently had the opportunity to interview with Rakuten Symphony for Software Engineer Role .

Currently 2 years 2 months of Exp in a product based company . I was contacted by recruiter via naukri and Interview was scheduled.

Round 1 - Technical Round (1hr. +)

Started with basic introduction and prev company work exp. then Jumped on to the two DSA questions based on hashmap (medium level) and greedy (easy), he asked to code and explain time complexity and furthur asked to optimise the code .

Then started with question related to Spring Boot , Hibernate

How AutoConfiguration in Spring Boot works internally, Dependency injection , Bean lifecycle and some followups based on the answers i gave.

In hibernate he asked question related to transactional annotation , difference b/w save and persist, how we use hibernate for perfomance optimisation etc.

Round 2 - System Design (1hr .+)

After a small introduction and few questions related to multithreading and OOPS. I was asked to design a Bike Rental System based on the requirements provided.

Then asked about to implement observer design pattern and singelton design pattern.

**Round 3 - HR **

General HR question and salary negotiation 😂

Verdict -- Selected 🙈.

**Resource for preparation **

-- Striver DSA Sheet
-- Spring Boot Playlist from Engineering Digest
-- System Design from Udemy course by Shreyansh Jain
-- Java OOPS Concepts from https://www.tpointtech.com/java-tutorial