The Boss reaches for matches to set fire to resumes with:
Spelling mistakes.
Resumes written in "text speak" - eg C U L8R (don't laugh, it's happened). (Growler,
)
Low time pilots who haven't included their hours on type. Licenced to fly any aircraft under 5700kgs might be a licence but it may not meet the Time on Type which the insurance asks for. Especially frustrating if the job ad specifies "successful applicant must have x hours in command on y type".
Low time pilots who haven't included their command time. (Or in some instances, total time.)
Pilots of any experience who include a photo on their resume when the photo is taken in a (ahem) social situation. Or have edited the photo to cut in half the person's face next to them. Make it professional, or not at all.
Please include a short list of interests other than flying. Apparently it shows a well-rounded individual. (Or not. No points to the applicant who listed his interests as aviation, and pornography).
RadioSaigon - I admire your restraint.