Christopher Wu Email & Phone Number

San Francisco Bay Area, Us

San Francisco, California, Us

Palo Alto, Ca, Us

Developed a plugin for LinkedIn's Azkaban scheduler that integrates with Amazon's Elastic MapReduce service (EMR) to dynamically create and terminate clusters tailored for individual jobs.Developed another plugin for Azkaban that allows the user to view active EMR clusters.Migrated MapReduce jobs from a standard Azkaban-Hadoop workflow to an Azkaban-EMR worfklow.Improved the execution time of user session-tracking MR jobs by 4-5x.

Mountain View, California, Us

*** Tempo was acquired by Salesforce on May 29, 2015 ***As Backend Developer:Owner of the Hadoop codebase:Redesigned our Hadoop scheduler for dynamic per-job configurations and improved failure handling. Wrote MapReduce jobs for backend, client, marketing, and analytics teams, running on AWS EMR.Wrote a "pseudo-streaming" system for running MapReduce jobs without the requirement of production code pushes.Owner of the Neo4j codebase:Responsible for production Neo4j database configuration.Designed and integrated graph processing algorithms by embedding JAX-RS code into the Neo4j server.Wrote MapReduce jobs for populating and updating the database.Semantic Processing:Redesigned and rewrote multiple contact enrichments and suggestion engines.Created a system for grabbing international phone numbers from calendar event data.Wrote Bash and Python scripts for scraping airline information from the web.Contributed to the Contact Insights engine by querying third-party APIs to bring person information to the user.As Ops Engineer:Installed and configured Hadoop clusters on top of Cassandra clusters.Wrote JMeter tests to perform backend load-testing and determine Amazon EC2 reserved instance selection.Contributed extensively to the internal administration console for user management and feature testing.Vagrant and Chef scripting.As iOS Developer:Implemented iPad support and numerous new screens for the Tempo app.

San Diego, California, Us

Resolved numerous bugs in the Integrated Computerized Deployment System’s Single Load Planning software, used by the U.S. military.Won the development team’s weekly bug fixing award three times.Resolved the highest number of bugs, both top-priority and overall, during the early 2013 bug-fixing development cycle.Extensive Java back-end and Actionscript front-end development.

Santa Clara, Ca, Us

Researched and tested several VMware products for use as a virtual computer lab: ESXi, vCenter Server, View.Upgraded the Schedule Changes and Faculty Absences pages for visual style and accessibility using WordPress.

San Jose, California, Us

Expanded the HDD Engineering team’s MySQL database of hard disk specifications.Learned and applied PHP, MySQL, Javascript, AJAX, and HTML in short timeframe.Added several new features to the database web front-end including drop-down boxes formore efficient search queries and export-to-spreadsheet capability.