Confluent Interview Questions
Master your tech interview with our curated database of real questions from top companies.
Determine Tutorial Completion Rate by Variant in 7 Days
users | user_id | sign_up_at | tutorial_variant | | 101 | 2023-08-01 | original | | 102 | 2023-08-02 | variant | | 103 | 2023-08-02 | original | | 104...
Evaluate Metrics and Randomization for Onboarding Tutorial Change
Scenario A single step within Confluent’s multi-step user-onboarding tutorial was modified. The product team wants to run an experiment to determine w...
Rank songs by pairwise user preferences
You are given preference rankings for n users over m songs. Each song is labeled from 0 to m - 1. For each user i (0-indexed), you are given an array ...
Answer standard behavioral prompts
Behavioral & Leadership Prompts (Technical Screen — Software Engineer) Context: You will be asked to answer standard behavioral prompts. Aim for conci...
Implement tail N lines
Implement a function tail(path: string, N: int) that prints the last N lines of a potentially multi-GB text file without loading the whole file into m...
Design temporary email service
System Design: Disposable Email Service with Expiring Inboxes Context Design a production-grade disposable/temporary email service for web/mobile clie...
Implement tail N lines
Implement a utility that prints the last N lines of input. Requirements: handle both a regular seekable file and a non-seekable stream (stdin/pipe); s...
Solve constrained monster traversal
You are given a directed graph with n rooms labeled 0..n-1; each room i contains a monster with health hp[i] ≥ 0. You start at room s with energy E. E...
Explain variadic functions
Variadic Functions in Two Languages + Typesafe Variadic Logger Context Variadic functions accept a variable number of arguments. In systems and backen...
Design a temporary email service
Design a Disposable Email Service with Auto-Expiring Addresses You are asked to design a receive-only disposable email service (e.g., 10‑minute inboxe...
Design a distributed key-value store at scale
System Design Prompt: Globally Distributed, Read-Optimized Key-Value Store Context and minimal assumptions Design a globally distributed key-value (KV...
Explain algorithm strategies and complexity
You are faced with a complex, potentially ambiguous coding problem. Describe how you would clarify requirements, identify constraints, propose multipl...