Explore high availability strategies at Braintree, a payment gateway, in this 36-minute conference talk from Strange Loop 2013. Discover how to minimize downtime and maintain service reliability in a Ruby-based application. Learn techniques for managing planned maintenance, including traffic pausing, rolling deploys, and schema changes without interruptions. Understand approaches to mitigate unplanned failures through load balancing, redundant infrastructure, and application-level retry mechanisms. Gain insights into Braintree's refined deployment process, stateful services management, and networking solutions. Examine the importance of safeguards, monitoring, and automation in reducing errors and maintaining system integrity. Benefit from the speaker's extensive experience in software development and payment processing infrastructure.