I have 7 years of experience in moodle and Totara development and working with people across the glob and some of them are also from UK, I have started my moodle development journey with moodle 1.9 and currently working on moodle 3.3, in my tenure I have worked on top e-learning projects based on Moodle and Totara and have been working as product owner for various projects for e-learning and knowledge management.
My role involved development of new themes and plugins as well as customization in the existing ones also I have developed a new course type based on moodle's Grid course type, and many different moodle blocks as well as local plugins and now I feel very comfortable with any type of moodle developments and support.
Thanks!