I'm a retired applications developer (medical issues). My skill-set however is mostly unhelpful; relating to old 'blue dinosaurs'.
I first used GNU/Linux around 1998 but for years only used distros that contained GNU in their name (mostly debian). It wasn't until ~2010 that I finally tried Ubuntu.
Ubuntu Weekly Newsletter
Contribs in issues
425,426,427,429,430,431,432,435,437,438,440,443,446,449,450,452,454,455,457,458,462,463,464,465,466, 467,469,471,472,473,474,476,477,478,479,480,481,483,484,485,486,487,488,489,490,491,492,493,494,495, 496,497,498,499,500,501,502,503,504,505,506,507,508,509,510,511,512,513,514,515,516,517,518,519,520, 521,522,525,526,527,528,529,530,531,532,533,534,535,536,537,538,539,540,541,542,543,544,545,546,547, 548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566
I joined the UWN & news team for issue 425 (July 2015) as a summary writer. By issue 487 I was adding (occasional) articles to the doc for the next issue though only for Planet. At issue 502 I was finally stepped out of liferea using a browser to find & fill-the-doc preparing it for summary writers. I was sending the the summary emails by #512, and sometimes pasted to wiki for editing, running [upd/sec] scripts & sending email to editors. At issue 523 a new team started leading the UWN and I've returned to summary writer, though often post UWN to the fridge & social-media.
Fridge, Ask Ubuntu [QA-]Testing & irc
For the Ubuntu 17.10 freeze I started posting news to the fridge.
Ask Ubuntu - https://askubuntu.com/users/469152/guiverc
QA-Testing - see http://iso.qa.ubuntu.com/qatracker/reports/testers (or http://iso.qa.ubuntu.com/qatracker/reports/testers/top100) but primarily 18.10 onwards & x86.
I've tried to contribute to the Lubuntu Team recently; intention being packaging (a recent attempt of a package exists in my PPA for testing purpose) but so far I've not got it yet. I have however helped with testing bug fixes but proof of this would be in lp.bug.reports.
Minor wiki edits (updates when I see them & feel equipped to update the material; usually the minimum change necessary to make it accurate and not re-writes). Some of these are on request of people on IRC, Ask Ubuntu.
I'm regularly on IRC & respond to anything I can.