Bizongo | SDE-2 | Bangalore | Aug 2024 [Offer]

My interview journey for the SDE-2 role at Bizongo in Bengaluru, India, with 3 years of experience, spanned four rounds.

Round 1 (Technical) - 1.5 hrs

This round primarily focused on my expertise in Java, DBMS, problem-solving, and Data Structures & Algorithms. I was asked several questions related to Java 8 features, anonymous classes, String pool mechanics, and the internal workings of database indexing. Discussions also touched upon Spring Boot annotations, distributed systems concepts, and locking mechanisms. For DSA, I was given a problem to find the shortest path between different metro stations across various lines, and another one involved implementing the Longest Increasing Subsequence with running code.

Round 2 (Technical) - 1.5 hrs

This round delved deeper into my past projects and the technical challenges I had solved. I was tasked with designing a High-Level Design (HLD) for a social media platform. Following that, I had to implement a connection pooling system. The problem statement for the connection pool was quite detailed, requiring it to be configurable with min/max connections, use a DataSource, and implement core methods like createConnection(), getConnection(), releaseConnection(Connection conn), and closeAll(). Key design considerations included ensuring thread safety, adhering to the maximum connection limit, and using efficient design patterns. Additional technical questions covered more Java topics, distributed systems, and scenario-based problems applying Java concepts.

Round 3 (Managerial) - 2 hrs

The managerial round was a deep dive into my projects and the technical problems I've tackled. We discussed various behavioral aspects, alongside more technical questions covering Java, database conflicts, database locking, SOLID principles, OOPs concepts, and ACID properties.

Round 4 (HR) - 30 mins

The final round was with HR, focusing on behavioral questions. I was asked about my motivation for joining Bizongo, reasons for leaving my current organization, and challenges I've faced in my current role, among other standard HR queries.

I am pleased to report that I was selected for the position.