From Guild Wars 2 Wiki
Josh Petrie was the engineering lead for tools and core technology at ArenaNet until 2013. His job included making other developer's jobs easier.
He took the role as a tools programmer in March of 2008 and took over the leadership of the team in 2011. On August 23, 2013, he left to work at 343 Industries.
- User:Josh Petrie, his user page