No-one can read what you wrote, the way you posted it.
I can see that you put in a lot of effort so I've formatted your unreadable mega-sentence into semi-sentences, so others can read it.
Nothing has been changed, only some spacing added.
here...
Retired now, but worked as an analytical chemist and technical assistant at the last primary zinc smelter in the UK. When it closed and I was made redundant I utilised hobby/professional IT skills as a network manager in primary and secondary...