I currently work on JIRA Service Desk: https://www.atlassian.com/software/jira/service-desk
I did quite a bit of work on Magnolia CMS in the past: https://git.magnolia-cms.com/
I have some projects on GitHub: https://github.com/gjoseph/
I have some projects on Bitbucket: https://bitbucket.org/hpesojg/
I do some other things, too.