BrowserStack for our cross-browser testing tool.
Capybara for integration testing.
Codeship for continuous integration.
Cucumber for integration testing.
Debian for our Linux distribution.
Elasticsearch for our tag searching.
Exim for mail sending.
Galera Cluster for clustered MySQL.
GitHub for collaborative programming.
HAProxy for load balancing.
Hound for style guidance.
JIRA for our issue tracking.
NGINX for our front end.
Memcached for caching.
MaxScale for MySQL load balancing.
Percona XtraDB Cluster for our relational database.
Rails for our framework.
Redis for NoSQL.
Rspec for unit tests.
Ruby as our language.
RubyMine for our integrated development environment.
Slack for communications.
Travis for continuous integration.
Vagrant for our development environment.
