Web: http://jmason.org/ -- Email: jm at jmason.org
Senior software engineer with experience in leading the design, development and operation of large-scale software projects.
Systems Architect, Swrve, Inc. (Feb 2013 - present):
"Dockerisation" of the Swrve platform for deployment to Amazon EKS.
SDE 2/3, Amazon.com (Dublin, Ireland) (Jul 2009 - Jan 2013):
Developing products and services to perform Amazon-scale active network monitoring. Our team's main project was a next-generation network monitoring system, to detect and triangulate network problems quickly and accurately in order to drive down MTTD and MTTR. This was composed of a fleet of servers running Jetty and Guice in Java, and a larger fleet of agents written in C++ with Boost.
Software Engineer, NewBay (Dublin, Ireland) (Dec 2008 - Jul 2009):
Working on server farm deployment automation, and building large-scale object storage web services in Java.
Software Engineer, PutPlace (Dublin, Ireland) (Nov 2007 - Dec 2008):
Scaling PutPlace's solutions using Amazon's EC2 and S3 web services; implemented a one-click deployment system to deploy fully production-ready grids of EC2-hosted servers.
VP, Apache SpamAssassin (July 2006 - July 2008), Project Management Committee Member, Apache SpamAssassin (July 2004 - 2014):
Deciding the architecture, development, goals and direction of the open-source Apache SpamAssassin project. see http://spamassassin.apache.org .
Specialities: Java, Linux, AWS, HTTP, TCP/IP, open source, anti-spam, mail, internet security, mail filtering, scalability
Programming languages, libraries and frameworks: Java, Python, Ruby, C++, C, Perl, sh/sed/awk/etc., AWS, Netty, protobuf, Avro, MySQL, DynamoDB, Presto, Parquet, Orc
Development methodologies: XP, Scrum, Kanban
Set up the first non-academic web server in Ireland, the 70th HTTP server in the world.
In addition to the commercial software development experience detailed above, I am the author of a number of free / open-source software projects. Highlights:
Apache SpamAssassin, a mail filter to detect and block unsolicited bulk email. I created the first version in 2001, and by now it is probably the most widely-used spam filter in the world, protecting around 100 million users world-wide. More info at http://spamassassin.apache.org .
PLP, a drop-in replacement for the UNIX "lpr" printer system. During my maintainership it eventually had over 10,000 users in over 100 sites. PLP was included in SuSE Linux, among other Linux distributions.
Prof. Patrick Powell, Justin Mason, LPRng, An Enhanced Printer Spooler System. Paper presented at the USENIX Large Installations Systems Administration (LISA '95) conference. http://www.usenix.org/publications/library/proceedings/lisa95/papowell.html
INTERESTS AND OTHER PROJECTS
My interests include: SCUBA diving (PADI Advanced Diver certified), reading, design, copyright law, and open source software. I write a weblog at http://taint.org/ , which won Best Technology Blog in the 2009 Irish Blog Awards.
1989 - 1990: BA degree in Mathematics, Trinity College, Dublin, Ireland; did not complete degree.