Tim Armstrong's Email Addresses & Phone Numbers

Principal Software Engineer @ Cloudera I'm working on Apache Impala, a high performance distributed SQL query engine. I've focused on query execution and resource management but have worked on most subsystems. Apache Impala committer and PMC member. San Francisco Bay AreaSoftware Engineering Intern @ Facebook Working in Database Engineering team on analysis of Facebook database workload and...

Principal Software Engineer @ Cloudera I'm working on Apache Impala, a high performance distributed SQL query engine. I've focused on query execution and resource management but have worked on most subsystems. Apache Impala committer and PMC member. San Francisco Bay AreaSoftware Engineering Intern @ Facebook Working in Database Engineering team on analysis of Facebook database workload and benchmarking of next-generation database systems. From June 2012 to September 2012 (4 months) Menlo Park, CASoftware Engineering Intern - Data Warehouse @ Facebook Worked on the Hive data warehouse team, improving performance and efficiency. From June 2011 to August 2011 (3 months) Part-time programmer @ CDE Computer Management Part-time work during university: assisted with development and troubleshooting of for land surveying companies From 2005 to 2006 (1 year) Melbourne, AustraliaEngineering Intern @ Synertec Software development for engineering consultancy: Microsoft Access, Microsoft ASP, .NET. From June 2004 to February 2005 (9 months) Melbourne, AustraliaGraduate Assistant - Computer Science @ University of Chicago Research in programming models and languages for high performance and data intensive computing.Part of team of two developing the Swift/T language (http://swift-lang.org/Swift-T, including optimizing compiler and runtime system for deterministic parallel scripting at massive scale (10,000+ cores).Designed and implemented a proof-of-concept library for parallel dataflow programming in Python: pydflow From September 2009 to June 2015 (5 years 10 months) Computer Science Research Assistant @ University of Melbourne Research on information retrieval evaluation. New text search algorithms and systems are being proposed all the time, and each new one typically claims some improvement over the past ones. But how reliable are their experiments? Are these improvements cumulative?As a research assistant I was able to explore some of these questions by comparing past research results and existing information retrieval systems in particular ways to highlight widespread problems in IR evaluation methodology. From December 2008 to August 2009 (9 months) Data warehouse support/development @ NCW Limited Part-time position doing administration and development for the company's SQL Server data warehouse that integrated data from 20+ businesses around Australia involved in confectionary wholesale.Main responsibilities included database administration, tool development, and management of data quality. From May 2007 to December 2008 (1 year 8 months) Melbourne, Australia