SKILLS

• Distributed systems, structured storage, networking protocols, Linux, Python, Java, C++.
• Contributor to open source projects including OpenID, Emacs, Pine, tcsh, Pidgin, and PyBlosxom. More at snarfed.org/space/software.

EXPERIENCE

Software Engineer

• March 2006 - present

  Co-founder of Google App Engine and lead engineer on its datastore, a large-scale, replicated, distributed structured storage system used by both App Engine and other Google products. Includes a dynamic query planner, full featured transaction engine, rich structured primary keys, real-time index management, full text search, and semantic typing. Scales to >100B rows and >1PB of data.

• April 2006 - Dec. 2006

  Led Google's early adoption of OpenID. Evangelized OpenID internally, built a number of prototypes, addressed security concerns, and got buy-in from execs. Implemented the first project, commenting in Blogger, and coordinated the following projects, including the Blogger OpenID provider and an App Engine provider and consumer.

• Sept. 2005 - March 2006

  Led the migration to BFS, our third party billing partner. This went beyond the scope of the Fluffy migration (below); it included more advertisers and publishers, multiple corporate entities, and over ten different billing models and payment methods. We migrated all advertisers without downtime, and with a fallout rate of under .1% needing manual intervention.

• Sept. 2004 - Sept. 2005

  Led the migration from Fluffy, Google's old biller and OLTP system, to Moneta. We migrated millions of customers in-flight, without any downtime and ahead of schedule. We had a fallout rate of under .01% needing manual intervention.

• June 2003 - April 2005

  Tech lead and a primary developer on Moneta, Google's transaction processing platform. Moneta handles OLTP, rating, billing, invoicing, payments, and revenue share for all of our advertisers and publishers.

  Designed the Moneta data model and wrote the biller, along with another tech lead. It went live in early 2005. It currently handles over ten payment methods, hundreds of countries and currencies, millions of advertisers and publishers, millions of requests per day, hundreds of millions of transactions per day, and billions of dollars on roughly 30 minutes of downtime per quarter (99.98% uptime).

  Moneta connects to multiple external payment processors, including CyberSource, Bibit, OPI, GlobalCollect, and BFS. Their APIs include HTTPS, XML-RPC, REST, proprietary, and batch flat file.

  Moneta is also Google's primary customer master data store, and provides online and batch access to all static and transactional data. It handles financial reporting, data warehousing, and data mining.

Software Developer, Life Sciences

• Designed and implemented a workflow framework, catalog, and description language used to run molecular analyses.

Software Developer, Life Sciences

• Worked on DALI, an Extreme Blue project that enables scientists to share molecule data and analysis code over the Internet. Used SOAP, OGSA, UDDI, DB2, and Java.
• Developed a dynamic parallelizing algorithm for running large networked analyses.
• Implemented intelligent caching and routing mechanisms for data and analyses.

Software Developer, Bounty Hunter PS2

• Wrote a triangle re-optimizer and other tools for the graphics engine.
• Developed a full-featured windowing system in OpenGL for the game's GUI.
• Developed a multi-channel streaming audio library for Playstation 2.

Software Developer, OFS

• Designed and implemented a networked warehouse management system using sensors, conveyor belts, bar code readers with custom TCP/IP stacks, and an Oracle server. Also wrote an automatically regressed emulator for the system.
• Wrote web-based PL/SQL utilities for modifying in-process orders on the fly.

Quality Assurance Tester

Software Developer

EDUCATION

Stanford University Stanford, CA

• BS in Computer Science, with a minor in Mathematics, 6/2002, GPA 3.5
• MS in Computer Science, 6/2003, GPA 3.6
• Coursework: networking, distributed systems, security, streaming algorithms, advanced databases, operating systems, C/C++, Java, graphics, discrete math, abstract algebra
• Senior project: designed and implemented P4, a self-organizing peer-to-peer network with a generic, extensible platform for developing plugins. The project won top prizes from the IBM, Cisco, and Electronic Arts corporate sponsors.

OTHER

• Eagle Scout, Boy Scout Troop 120
• Classical Piano under Geraldine Keeling, multiple competitions and concerts
• Black Belt, Hapkido Karate, Jang Moo
• Fluent in Spanish