update

4/14 updated the Doordash's blog link 

A

Airbnb https://medium.com/airbnb-engineering
Artsy http://artsy.github.io
Asana https://blog.asana.com/category/eng/
Atlassian https://blog.developer.atlassian.com/
AWS https://aws.amazon.com/blogs/aws/

B

Baidu Research http://research.baidu.com/Blog
BBC https://medium.com/bbc-design-engineering
Bit.dev https://blog.bitsrc.io/
Bitly http://word.bitly.com
Booking.com http://blog.booking.com
Buzzfeed https://buzzfeed.com/techblog

C

Cloudera https://blog.cloudera.com/
Cloudflare https://blog.cloudflare.com/
CockroachDB https://www.cockroachlabs.com/blog
Codeship https://blog.codeship.com/
Condé Nast https://technology.condenast.com/

D

DigitalOcean https://www.digitalocean.com/community/tutorials
Discord https://blog.discordapp.com/
Docker https://www.docker.com/blog/
DoorDash https://doordash.engineering/
Dropbox https://blogs.dropbox.com/tech/

E

Ebay https://tech.ebayinc.com/
Etsy https://codeascraft.com/
Eventbrite https://www.eventbrite.com/engineering/
Evernote https://evernote.com/blog/
Expedia https://medium.com/expedia-group-tech

F

Facebook https://engineering.fb.com/
Facebook AI Research https://research.fb.com/
Flickr http://code.flickr.net
Flipboard http://engineering.flipboard.com
Foursquare https://medium.com/foursquare-direct/tagged/engineering
FRITZ AI https://www.fritz.ai/resources/ai-ml-newsletters.html

G

GIPHY https://engineering.giphy.com/
GitHub https://githubengineering.com/
Google Developers https://developers.googleblog.com/
Google Online Security https://security.googleblog.com/
Google Research https://ai.googleblog.com/
Groupon https://medium.com/groupon-eng

H

Heroku https://blog.heroku.com/engineering
Hootsuite http://code.hootsuite.com
HubSpot http://product.hubspot.com/blog/topic/engineering

I

IBM developerWorks https://developer.ibm.com/dwblog/
IFTTT http://engineering.ifttt.com
Imgur https://blog.imgur.com/category/eng/
Indeed http://engineering.indeedblog.com/blog
Instagram https://instagram-engineering.com/
Intel https://software.intel.com/en-us/recent-updates
InVision http://engineering.invisionapp.com

J

Jet Technology https://medium.com/jettech

K

Khan Academy http://engineering.khanacademy.org
Kickstarter https://kickstarter.engineering/

L

LINE https://engineering.linecorp.com/en/blog/
LinkedIn https://engineering.linkedin.com/blog
Lyft https://eng.lyft.com/

M

Mandrill http://blog.mandrill.com
Medium https://medium.engineering/
Mercari https://tech.mercari.com/
MongoDB https://engineering.mongodb.com/
Microsoft Engineering https://devblogs.microsoft.com/
Planet Mozilla https://planet.mozilla.org/
Mozilla Hacks https://hacks.mozilla.org/

N

Netflix https://netflixtechblog.com/
New York Times https://open.nytimes.com
Nvidia https://blogs.nvidia.com

O

Okta https://developer.okta.com/blog/
Oracle https://blogs.oracle.com/developers/

P

Paperspace https://blog.paperspace.com/
Paypal https://medium.com/paypal-engineering
Pinterest https://medium.com/@Pinterest_Engineering
Pivotal http://engineering.pivotal.io/
Postman https://medium.com/better-practices
Preferred Network https://tech.preferred.jp/en/
Prezi https://engineering.prezi.com/

Q

Quora https://www.quora.com/q/quoraengineering?sort=top

R

Rakuten https://techblog.rakuten.co.jp/
RapidAPI http://blog.rapidapi.com
Red Hat https://developers.redhat.com/blog/

S

Salesforce https://developer.salesforce.com/blogs/engineering/
Shopify https://engineering.shopify.com/
Slack https://slack.engineering
SlideShare https://engineering.linkedin.com/blog/topic/slideshare
Soundcloud https://developers.soundcloud.com/blog/
Spotify https://labs.spotify.com/
Square https://developer.squareup.com/blog/
Squarespace https://engineering.squarespace.com/
Stack Overflow https://stackoverflow.blog/engineering/
Stripe https://stripe.com/blog

T

TaskRabbit http://tech.taskrabbit.com
ThoughtWorks https://www.thoughtworks.com/insights
Tinder https://medium.com/tinder-engineering
Trello https://tech.trello.com/
Trivago http://tech.trivago.com
Tumblr https://engineering.tumblr.com/
Twilio https://www.twilio.com/blog
Twitter https://blog.twitter.com/engineering/en_us.html
Twitch https://blog.twitch.tv/en/?tag=engineering

U

Uber http://eng.uber.com
Udacity https://engineering.udacity.com/

V

Venmo http://blog.venmo.com/?category=Engineering
Vimeo https://medium.com/vimeo-engineering-blog

W

WalmartLabs https://medium.com/walmartlabs

Y

Yahoo https://yahooeng.tumblr.com/
Yelp https://engineeringblog.yelp.com/

Z

Zapier https://zapier.com/engineering/
Zendesk https://medium.com/zendesk-engineering