Список технических блогов, стоит добавить в закладки и раз в месяц почитывать

Cloudflare https://blog.cloudflare.com/
Netflix https://netflixtechblog.com/
Uber https://eng.uber.com/
Lyft https://eng.lyft.com/
Twilio https://www.twilio.com/blog
Facebook https://research.fb.com/
Twitter https://blog.twitter.com/engineering/en_us.html
Databricks https://databricks.com/blog/category/engineering
Google AI https://ai.googleblog.com/
Google Dev https://developers.googleblog.com/
Slack (already mentioned) https://slack.engineering/
Twitch https://blog.twitch.tv/en/?tag=engineering
Quora https://www.quora.com/q/quoraengineering
Discord https://blog.discord.com/engineering-posts/home