ReadwellStories from the teams building the internet.
Reading edition · Sat, Oct 31
Engineering blogs from the teams building the internet — short publisher excerpts, linked to the source.
194 matching blogs. Page 1.
slack.engineeringFrom the archive 2024
“A complex system can fail in an infinite number of ways.” -“Systemantics” by John Gall Incidents are stressful but inevitable. Even services designed for availability will eventually encounter a failure. Engineers naturally find it…
Related to Reliability
slack.engineeringOver the past few years, we’ve been on a journey to modernise how we run Amazon Elastic Compute Cloud (EC2) instances at Slack. In our first post, Advancing Our Chef Infrastructure, we shared how we moved from a single Chef stack to a…
Related to Infrastructure
slack.engineeringFrom the archive 2022
At Slack, we use Terraform for managing our Infrastructure, which runs on AWS, DigitalOcean, NS1, and GCP. Even though most of our infrastructure is running on AWS, we have chosen to use Terraform as opposed to using an AWS-native…
Related to Infrastructure
slack.engineeringExcerpt By 2024, Slack’s data platform had accumulated 700+ SSH-based operators orchestrating critical data pipelines. We’re talking daily search indexing that processed terabytes of data, analytics jobs powering business intelligence,…
Related to Data
slack.engineeringFrom the archive 2023
We are heavy users of Amazon Compute Compute Cloud (EC2) at Slack — we run approximately 60,000 EC2 instances across 17 AWS regions while operating hundreds of AWS accounts. A multitude of teams own and manage our various instances. The…
Related to Infrastructure
slack.engineeringIn early 2023, Slack faced a foundational challenge: serving Large Language Models (LLMs) at enterprise scale with the security, reliability, and performance our customers expect. Over three years, we evolved from basic infrastructure…
Related to AI & ML
slack.engineeringFrom the archive 2020
At Slack, we’ve gone through an evolution of our AWS infrastructure from the early days of running a few hand-built EC2 instances, all the way to provisioning thousands of EC2s instances across multiple AWS regions, using the latest AWS…
Related to Infrastructure
slack.engineeringThe Problem: Legacy Tooling and Its Limitations Currently, Slack utilizes a hybrid approach to network measurement, incorporating both internal (such as traffic between AWS Availability Zones) and external (monitoring traffic from the…
slack.engineeringFrom the archive 2022
In the first two posts about the Duplo initiative, we described why we decided to revamp our mobile codebases, the initial phase to clean up tech debt, and our efforts to modularize our iOS and Android codebases (post 1, post 2). In…
Related to Mobile
slack.engineering“What are your goals for this quarter?” It’s the question every manager asks, and one that often prompts a flurry of technical objectives and project milestones. Jumping into this internship, I knew my answer. I wanted to practice…
slack.engineeringFrom the archive 2021
Reinventing how the world does work inevitably creates a lot of data. Each year, Slack’s scale has increased and the volume of data ingested and stored has kept pace. To make it possible to understand relationships within our data,…
Related to Data
slack.engineeringWhen do you need to overhaul a large code base to address tech debt? What is the best way to address widespread inconsistencies and outdated patterns? How can you make significant architectural improvements to a complex application…
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