C

Confluent

SDE-1 (Software Development Engineer 1)

Interview Date

October 2024

Result

Not Specified

Difficulty

Medium-Hard

Rounds

3 technical rounds

Drive Type

Full-Time

Topics asked

Data StructuresAlgorithmsSystem Design

Detailed experience

Role: SDE-1 (Software Development Engineer 1)

College: Not Specified

Interview Date: October 2024

Interview Type: Full-Time

Result: Not Specified

Difficulty: Medium-Hard

Rounds: 3 technical rounds

Topics Asked: Data Structures, Algorithms, System Design

Experience:

The interview experience for the SDE-1 role at Confluent consisted of three technical rounds, each focusing on different aspects of problem-solving and system design.

Round 1: Design Problem (HashMap Logic)
This round involved designing a system that effectively utilized HashMaps, requiring a solid grasp of the data structure and the ability to optimize the design for given constraints.

Round 2: Sudoku Solver Problem
The candidate tackled a Sudoku solver problem, which involved implementing recursive backtracking algorithms to ensure all constraints were met. This was a more complex problem, testing the ability to manage algorithmic complexity and correctness.

Round 3: Design Problem (HashMap Logic)
The final round again involved a design problem utilizing HashMap logic. While the design aspect was similar to the first round, the problem was more straightforward, making it easier to navigate and solve.

Overall Experience: The candidate found it a well-rounded interview process that allowed them to showcase both design and problem-solving skills.

Posted on - 12 Nov 2025
Confluent Interview Experience - SDE-1 (Software Development Engineer 1) | OAHelper