Your resume should be tailored to the needs and wants of the organization rather than just being a record of what you've done in the past. A resume is not an alibi, so don't list details about every position you've ever held and every educational accomplishment for which you can take credit. If they're not relevant to the position to which you're applying, don't include them. If the description of each item on your resume doesn't clearly relate to the requirements and preferences for the position to which you're applying, re-write the descriptions.

A typical resume is reviewed for just a few seconds before the recruiter moves on to the next one. Many resumes are not actually reviewed by humans at all and are instead reviewed by software engines that rank them based upon artificial intelligence algorithms. Given that artificial intelligence is in its infancy, those algorithms are often not terribly intelligent. Many are unable to distinguish between software developers who specialize in java and the baristas who make great coffee drinks at Starbucks. But don't give up. Instead, put yourself in the shoes of someone who doesn't know you, is focused solely on finding a handful of candidates to interview for a specific opening, and has five seconds to review your resume. Is your resume clear enough about who you are and to which position you're applying so that you will be amongst the handful of fortunate candidates? If not, re-write it.