Over the next 12 days we’ll be sharing one engineering post per day, carrying forward a long internet tradition of blog advent calendars. Follow @mixmax on Twitter for the latest posts or check back here daily for an updated list. Our posts will be about our stack and interesting solutions to engineering problems we've encountered. We hope to give back to community what the community has given to us. We also look forward to hearing feedback! Tweet the author of the post (linked to on the right of each post) with your feedback.