Welcome to Zero Mass Engineering

a division of A2Z Development Center, Inc., part of the Amazon.com group of companies.

We develop technologies to allow authors, filmmakers and musicians around the world to distribute their books, DVDs and CDs inventory-free and make them available for sale to millions of customers. The platform we support has allowed Joss Whedon to distribute "Dr. Horrible's Sing-Along Blog," Steve Martin to distribute his album "The Crow: New Songs for the Five- String Banjo," and helped 14-year-old Sarah Renee become a bestselling author (to name a few).

Our teams have daily opportunities to use ingenuity, drive, and passion to build world class, customer focused software. We're working on the web service, database, and data management infrastructure of our next generation platform. This platform manages digital content, metadata, and feeds to external systems. We eat and breathe object-oriented design, high-quality code, stability, reliability, and operational excellence.