Hi there. The "Developer Story" system from Stack Overflow is interesting, I like how they're reinventing the CV - though whether it makes any difference to the hiring process in practice is probably an open question.
A couple of tips from my side: double-check your spellings and letter case when presenting material in support of a job search. The person pronoun "I" is upper-case, even when it is not the first word in a sentence. "Hackacthon" is spelled "Hackathon", and there are several others. Unfortunately even the best developers can have their application rejected instantly because of simple presentational errors, so it would be worth getting a person who speaks English natively to read this through and offer some improvements.
Out of interest, are you based in Birmingham or in the surrounding areas?