[yourapostasy]

> Few days later offer was withdrawn since I hadn’t completed paperwork.

Saw the not-filling paperwork/red tape in a timely manner used as a signal first-hand to screen out a perfectly-acceptable (technical-wise) candidate. Combined with a perceived lack of enthusiasm in personality for the role (which I could easily put down to a manager who has a specific idea in mind of "enthusiasm", and doesn't mesh well with a wider variance of personality types), it was a one-two punch the candidate could not recover from, and lost out to a slightly more junior tech.