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Tech & Innovation
On-call work is a race to turn noisy signals into shared judgment. The hardest minutes of that race aren't the ones spent fixing the bug — they're the ones spent figuring out what the bug even is, while everyone in the thread is asking the same question from a slightly different angle. Blueberry is the system we built at Instacart for those several minutes. It...
Jul 14, 2026
Read time: 16 min
Tech & Innovation
I’ve been a software engineer since the early 1980s. We called it “computer programmer” then and laughed at people who called themselves “engineer-comma-software” because it sounded pretentious. Through college and all the years since then,...
Apr 7, 2021
Read time: 6 min
Tech & Innovation
There’s a class on Udemy called “ If you can cook, you can code ” — absolutely true! What do these two things have in common? Curiosity : being interested in how things are put...
Mar 24, 2021
Read time: 12 min
Tech & Innovation
State management is usually the most complex part of a UI application. At Instacart, we have been using RxJava to manage state for a few years now. As our Android team grew, we realized that...
Mar 24, 2021
Read time: 7 min
Tech & Innovation
Jetpack Compose was announced at Google IO 2019 and is going to change how we do UI development on Android. I’ve been working a lot with the Android image APIs as I’ve been developing Coil...
Mar 24, 2021
Read time: 5 min
Tech & Innovation
Thanks for making it all the way to the end of this series. See Part 1 for an overview of RDS and Terraform, Part 2 to get the basics of using Terraform with RDS and...
Mar 24, 2021
Read time: 3 min
Tech & Innovation
See Part 1 for an overview of RDS and Terraform, and Part 2 to get the basics of using Terraform with RDS and modules . This post covers parameter groups. What is a parameter group?...
Mar 24, 2021
Read time: 11 min
