Since 2009, my career has been Drupal websites. Drupal versions 5, 6, and primarily 7 have been my bailiwick. Prior to 2009 I was a system engineer writing device drivers, then Java servlets, then LAMP websites.
On November 19, 2015 the core Drupal version 8 was released with completely re-structured, object-oriented underpinnings. This website was re-released last December as a Drupal 8 site. The simplicity of this site enabled its existence at that time.
Drupal 8 is now much more mainstream. Significant contributed modules are largely ported and highly usable Drupal 8 websites are being built. Read more about Drupal 8's ongoing development in my article below about DrupalCon Dublin.
I can help you develop your Drupal 7 or 8 site or port your Drupal 6 or 7 site to Drupal 8. I will debug any Drupal site. Contact me.