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Coding · System design
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Design a distributed job scheduler that can handle high-throughput job processing (10,000+ jobs per second), support both scheduled (cron-based) and ad-hoc job execution…
Companies: Digitalocean, Airbnb, Apple, Autodesk +25
System Design
Last reported Oct 2026
Design a metrics monitoring platform that collects performance data (CPU, memory, throughput) from hundreds of thousands of servers, allows users to set threshold-based alerts…
Companies: Digitalocean, Amazon, Databricks, Expedia +10
Last reported Oct 2026
Read-heavy key-value service: unique short-code generation, hot-key caching, redirect semantics.
Companies: Digitalocean, Amazon, Anduril, Apple +26
API Design · caching · hot-keys · http-redirects
Last reported Aug 2026
Design an ad asset management system that allows ad clients to upload individual or bulk text/image assets, validate uploaded assets in near real-time, and receive…
Companies: Digitalocean, Microsoft
Last reported Aug 2026
Design a system to migrate data from a SQL database to a NoSQL database while maintaining service availability under 10,000 QPS API load. Consider failure…
Companies: Digitalocean, LinkedIn, Tesla
Last reported Aug 2026
Given a circular array of nonnegative values where robbing two adjacent houses is forbidden, find the maximum total amount you can rob without alerting the…
Companies: Digitalocean, Amazon, Microsoft
Last reported Aug 2026
Given a string, perform k single-character updates and after each update return the length of the longest substring made of a single repeated character; with…
Companies: Digitalocean
Last reported Aug 2026