Top all-time · #11097
The ClassDojo Blog
Company blog · engineering.classdojo.comprogrammingweb
The ClassDojo Blog is the company blog at engineering.classdojo.com, writing about programming and web. Since 2015, 7 different Hacker News readers have linked it 12 times, most often “Using Docker to run 4500 node.js tests in under 2 minutes”. It is still writing: the last post was on 2025-03-19, and you can follow it by feed.
Too few sampled comments (4) to say how often HN recommends it.?
Why HN links it
HN readers link the ClassDojo engineering blog for its rate-limiting post, which describes a more memory-efficient alternative to the sliding window log. Other comments are job listings.
Summarised by Claude from a sample of 4 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Welcome to the ClassDojo Engineering Blog
Most-linked posts?
- Using Docker to run 4500 node.js tests in under 2 minutes2 people · 2 mentions · first linked 2017-05-22
- Better Rate Limiting with Redis Sorted Sets2 people · 2 mentions · first linked 2017-04-13
What Hacker News says?
Company: ClassDojo ( http://www.classdojo.com ) Location: San Francisco About Us: We're a small team of ~20 people (10 engineers) making one of the world's most popular education apps. Help make classrooms happier and more positive with engaged parents and students, and get handwritten fan mail from teachers and students every day on account of your impact. We value collaboration, joint ownership of product, and hig…
Comment linking /
on “Ask HN: Who is hiring? (March 2015)”Submitted A/B Testing from Scratch at ClassDojo as a story · 9 points
HN discussionClassDojo | Senior Engineer (Backend or Fullstack), Director of Engineering | Fully REMOTE (Americas timezones) | competitive compensation & equity | https://www.classdojo.com/jobs/ ClassDojo is a widely loved K-8 communication tool for teachers, children, and families used in > 90% of US K-8 schools. We're on a mission to give every child on earth an education they love. - fully remote - small cross-functional team…
Comment linking /about
on “Ask HN: Who is hiring? (January 2022)”Submitted Better Rate Limiting with Redis Sorted Sets as a story · 7 points
HN discussionClassDojo | Senior Engineer (Backend or Fullstack), Director of Engineering | Fully REMOTE (Americas timezones) | competitive compensation & equity | https://www.classdojo.com/jobs/ ClassDojo is a widely loved K-8 communication tool for teachers, children, and families used in > 90% of US K-8 schools. We're on a mission to give every child on earth an education they love. - fully remote - small cross-functional team…
Comment linking /about
on “Ask HN: Who is hiring? (March 2022)”Submitted Using Docker to run 4500 node.js tests in under 2 minutes as a story · 6 points
HN discussionThanks for referencing my earlier post in the article! We use the "sliding window log" you described at ClassDojo, but your more memory-efficient approach looks great. https://engineering.classdojo.com/blog/2015/02/06/rolling-ra...
Comment linking /blog/2015/02/06/rolling-rate-limiter/
on “An Alternative Approach to Rate Limiting”Submitted Running 4558 Tests in 1m 55sec (or Saving 50 Hours/week) as a story · 3 points
HN discussionSubmitted Creating an Actionable Logging Taxonomy as a story · 2 points
HN discussionSubmitted Better Rate Limiting with Redis Sorted Sets as a story · 1 points
HN discussionSubmitted Red and Blue Function Mistakes in JavaScript as a story · 1 points
HN discussionSubmitted Integration Testing React and Redux as a story · 1 points
HN discussion