DuckDuckGo

Workflow

• Hipchat

Marketing

• Yammer

Native Apps

Browser-Tier

• Handlebars
• Knockout.JS
• JQuery
• Modernizr

Middle-Tier

• Solr
• Nginx
• Perl
• memcached

Back-End

• PostgreSQL
• Berkeley DB

Infrastructure

• ServerDensity
• Bucardo
• Git
• EC2
• Ubuntu
• Global Traffic Director