A list of different company's engineering blogs
A list of their respective Twitter accounts can be found here: https://twitter.com/i/lists/1608895967641882624
Airbnb Engineering & Data Science
AWS Architecture Blog
BlackRock Engineering
Databricks Blog
Dropbox Tech Blog
Engineering at Meta
Engineering at Quora
GitHub Engineering
Google Developers
Google Research
Instagram Engineering
LinkedIn Engineering
Lyft Engineering
Meta Research
Netflix TechBlog
Pinterest Engineering
Salesforce Engineering
Slack Engineering
Spotify Labs
Uber Engineering