On a resume/CV: If there are spelling mistakes, bad grammar or crazy formatting it will go on the no pile instantly. If I feel I am playing buzzword bingo that's also a no. If there is a section on personal interests then all the better 🙂

In an interview: Apart from technical competence, show some interest in the job. If I say "Do you have any questions for us?" then have some! My favourite questions that candidates asked were along the lines of "What will I be working on in my first 3 months" and "What is there to do in this area, where do people go for lunch?"

Ability to communicate (or lack thereof) can be a deciding factor. Remember an interview is a two way conversation!