--- title: "Design PasteBin | Systems Design Questions 3.0 With Ex-Google SWE" url: https://daily.dev/posts/design-pastebin-systems-design-questions-3-0-with-ex-google-swe-e9qifwgil source_url: https://www.youtube.com/watch?v=V_yOcipUqUE type: video:youtube source: "Jordan has no life" published: 2026-05-31T07:49:23.013Z updated: 2026-05-31T09:16:38.310Z tags: ["career", "distributed-systems", "aws-s3"] reading_time: 19 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Design PasteBin | Systems Design Questions 3.0 With Ex-Google SWE **[Jordan has no life](https://daily.dev/sources/jordan-has-no-life)** · 19 min read · 0 upvotes · 0 comments ## Summary A walkthrough of designing a PasteBin-like system, building on a prior TinyURL design. Covers functional requirements, capacity estimates (600M pastes/month, 100KB average size), and why large text blobs should not be stored in relational databases. Explains using S3 as an object store with pre-signed URLs for direct client uploads, a CDN (CloudFront) for caching popular pastes, and strategies for cleaning up orphaned and expired S3 objects using lifecycle policies or lexicographically named objects sorted by expiration timestamp. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Design a Video Upload System That Handles Millions of Uploads a Day](https://daily.dev/posts/design-a-video-upload-system-that-handles-millions-of-uploads-a-day-o0qzmqyjb) · C\# Corner · 0 upvotes · 0 comments --- Tags: [#career](https://daily.dev/tags/career), [#distributed-systems](https://daily.dev/tags/distributed-systems), [#aws-s3](https://daily.dev/tags/aws-s3) [View this post on daily.dev](https://daily.dev/posts/design-pastebin-systems-design-questions-3-0-with-ex-google-swe-e9qifwgil)