10 questions · from 3 interviews
Cloudflare interview questions
Every question candidates reported from their Cloudflare interviews, most frequently asked first. Each links to the write-up it came from, so you can see the round and how it went.
Cloudflare coding and DSA questions
- 01
Minimum Partitions Required to Fit Data Chunks
You were given a list of partitions and partitions used, determine the min amount of partitions required to fit all partitions. Data can be moved in chunks. For example: paritions = [10, 15, 15, 20] partitionsused = [5, 10, 15, 5] output = 2 Explanation: 2…
Medium · From Cloudflare Software Engineer interview onsite (reject)
- 02
Design Hit Counter
Design hit counter.
Medium · From Cloudflare Software Engineer interview onsite (reject)
Cloudflare system design questions
- 01
Design Batch Processing System for Support Tickets with LLM Summarization
Design a batch processing system which will ingest support tickets data and use a 3rd‑party LLM provider to summarize it. Include pseudo‑code or architecture details on how you would implement rate limiting for the LLM calls.
- 02
Design Distributed Scheduled Ping Service
Design a distributed system that allows users to schedule a ping to an HTTP endpoint at specified times or intervals. Consider scalability, reliability, and how the system stores and triggers scheduled pings.
- 03
Log Aggregation and Querying System for Edge Data Centers
You were given an existing design of an edge data center, where the logs gets generated. Each edge DC is in different city (NYC, LA, SEA). You were tasked to transport the logs to a core datacenter. Functional requirements: 1/ Logs need to be transported to a…
Hard · From Cloudflare Software Engineer interview onsite (reject)
Cloudflare behavioural and HR questions
- 01
Describe a mistake you made and what you learned
Tell me about a significant mistake you made in your career or a project and what valuable lessons you learned from that experience.
From Cloudflare Interview Experience — Software Engineer (Fullstack, Frontend Heavy) - Bengaluru
- 02
Share something you learned outside work
Discuss something new or interesting you have learned outside of your professional work and how you approached learning it.
From Cloudflare Interview Experience — Software Engineer (Fullstack, Frontend Heavy) - Bengaluru
- 03
Discuss fun or challenging career situations
Describe some fun or particularly challenging situations you've encountered in your career and how you navigated them.
From Cloudflare Interview Experience — Software Engineer (Fullstack, Frontend Heavy) - Bengaluru
- 04
Standard Behavioral Questions
Pretty standard, tell me about a situation questions.
Easy · From Cloudflare Software Engineer interview onsite (reject)
Cloudflare other questions
- 01
Project Deep Dive and Architecture Discussion
You need to talk about a project that I contributed to or a current project. You need to do a deep dive into the architecture.
Cloudflare interview questions FAQ
What questions are asked in Cloudflare interviews?
Candidates reported 10 distinct questions across 3 Cloudflare interviews. 2 coding and DSA questions, 3 system design questions, 4 behavioural and HR questions, 1 other questions.