Confluent Software Engineer Interview Questions

14+ Confluent Software Engineer interview questions drawn from real candidate reports. Sources include 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. Questions span every stage of the Confluent Software Engineer loop: OA, phone screen, system design, behavioral, and onsite coding.

What to Expect in the Confluent Software Engineer Interview

The Confluent Software Engineer interview process typically runs 4 to 6 rounds depending on seniority level. Based on candidate reports in the LeakCode database, the loop usually includes a resume review, an online assessment or coding phone screen, one or more technical rounds, a system design round (for senior and above), and a behavioral or values round.

Difficulty skews toward medium and hard LeetCode-style problems in the coding rounds. System design questions test breadth (component selection, scaling, trade-off reasoning) more than deep implementation. Behavioral questions are tied to the company's stated values and principles.

Confluent Software Engineer Questions (Sample)

Confluent Senior Software Engineer Interview Experience and Rejection

2026 1p3a

Got interview through referral. ## Qualifier Round: Analyze potential revenue for football (soccer) clubs based on their stadium capacity and historical performance. Use HTTP GET requests to access a

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confluent senior software engineer ii tech phone screen experience

phone screen 2026 1p3a

target: Senior Software Engineer II n-tail 和 Variadic Function 如果信息有用的话,请加米。

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Confluent Fulltime SDE Tech Phone Screen Interview Experience

phone screen 2025 1p3a

The original poster (OP) interviewed with Confluent and reviewed interview experiences and questions from other users. They expressed gratitude and offered some information to help others. The coding

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Confluent Software Engineer Coding Round Experience

technical 2025 1p3a

During the post-qualifier coding round for an SSE2 position at Confluent, I was tasked with solving a search-related problem. I successfully implemented the code for the first half of the requirements

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Confluent Onsite Interview Experience [Rejected]

phone screen 2024 leetcode

Phone Screen: Implement a data structure to store key-value entries within a time-based interval. Slight variation to LRU Cache. Round 1: Implement a Word Search Engine, given a list of documents with text,...

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Confluent | Senior Software Engineer | Offer

oa easy 2024 leetcode

My experience regarding recent SSE interview rounds with Confluent - I took a referral. After 20 days, recruiter called me and asked to schedule a Qualifer round. Qualifier Round: I was asked a DSA+LLD...

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Confluent | SSE | Bengaluru (Remote)

phone screen hard 2024 leetcode

Coding round 1 ---------------- you\'re given k v pairs funA: [\'int\',\'bool\'] funB: [\'int\',\'int\'] and queries like [\'int\',\'int\'] return all functions that match the description follow-up you\'re also given a flag is variadic funA: [\'int\',\'bool\'] , isVariadic: true funC: [\'int\',\'int\']...

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Confluent SSE || 2024 || Rejected || Remote

phone screen 2024 leetcode

exp - 5.5yrs current company - product based MNC college - Tier 3 Screening Round- Design a cache with time based eviction policy \t Expectation Implement get(), put(), getAverage() methods Onsite : Round 1 :...

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Confluent | SSE | Nov 2024 | Reject

recruiter 2024 leetcode

Applied directly on career portal, got a call from recruiter to schedule screening call. exp - 3.5yrs Screening Round: Design a cache with time based eviction policy Expectation Implement get(), put(), getAverage() methods Onsite : Round...

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Confluent Onsite Round

system design 2024 leetcode

College and all : Tier 1 CSE total yoe : 5 designation offered SSE 5 rounds total 1st Round Find words in a list of docs, extended later to find phrases in those docs 2nd...

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Confluent onsite + telephonic

behavioral easy 2020 leetcode

Telephonic. 1.) Do basic string match. Assume only one in the pattern. Follow up: Assume any number of s Onsite 1.) Windowed Average. Your are given a...

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#37 Sudoku Solver

coding hard lc_company

LeetCode #37: Sudoku Solver. Difficulty: Hard. Topics: Array, Hash Table, Backtracking, Matrix. Asked at Confluent in the last 6 months.

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#36 Valid Sudoku

coding medium lc_company

LeetCode #36: Valid Sudoku. Difficulty: Medium. Topics: Array, Hash Table, Matrix. Asked at Confluent in the last 6 months.

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#1797 Design Authentication Manager

coding medium lc_company

LeetCode #1797: Design Authentication Manager. Difficulty: Medium. Topics: Hash Table, Linked List, Design, Doubly-Linked List. Asked at Confluent in the last 6 months.

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Difficulty Breakdown

2

medium

2

hard

2

easy

Based on 14 questions with difficulty labels from candidate reports.

Interview Rounds

Here is how the Confluent Software Engineer questions in the LeakCode database break down by interview round, based on what candidates reported:

Round Questions in Database
phone screen 5
coding 3
technical 1
system design 1
recruiter 1
oa 1

Most Common Topics

system design (7) hash table (3) dynamic programming (1) backtracking (1)

Question Recency

2

2026

2

2025

6

2024

Question counts by interview year, based on candidate-reported dates.

How to Prepare for the Confluent Software Engineer Interview

Use the LeakCode question database as your primary research tool. Filter by role (Software Engineer), then by round type to focus your prep on the specific stages in your upcoming loop. Sort by recency to see what 2026 candidates actually faced.

  • Start with questions from the last 12 months. Interview processes change and recent data is the strongest signal.
  • Cross-reference questions that appear in multiple sources (1p3a, Blind, Glassdoor). Multi-source confirmation means a question has stronger recurrence probability.
  • For system design rounds: focus on the question patterns, not individual questions. The same design principles recur across many prompts.
  • For behavioral rounds: map your experiences to the company's stated values before the interview. Most behavioral questions at top companies are derivatives of a small set of core leadership competencies.

FAQ

How many Confluent Software Engineer questions are in the database?

14+ questions from verified candidate reports. The count grows as new reports are scraped daily from 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode.

Are these questions from real Confluent interviews?

Yes. All questions are sourced from actual candidate interview reports, not generated by AI. Each entry links back to its source URL where available, and questions are tagged with the year and round reported by the candidate.

How current is this data?

LeakCode updates daily. The database is filtered to exclude duplicate and low-quality entries. You can filter by interview year to focus on recent cycles.

Does LeakCode cover Confluent OA questions specifically?

Yes. The database includes online assessment questions tagged with round type. See the Confluent OA page for a dedicated view.

Related: Confluent All Questions · Confluent OA Questions · Browse All Companies · Data Sources