If you are claiming knowledge or experience with specific products you should identify them correctly. For example, you have Windows Xp as opposed to Windows XP. Many points throughout your resume have a period at the end, many don't. While these may seem trivial, it shows a potential lack in writing skill and/or a decreased attention to detail. You have claimed both excellent communication skills and are attentive to detail. In some occupations these are both considered crutial.
When I reviewed resumes for potential candidates, a few other items that really turned me off an applicant included:
The inability to spell our company or contact name(*) correctly.
Spelling the name(*) of organizations they claimed membership with incorrectly.
Sending an application or resume to us with another company name listed.
Absence of a cover letter.
Long, difficult to read resumes. Highlights are important but indepth detail is for the interview.
Consistenly using "I" throughout.
When possible you should address your submission to a specific individual instead of "Attention: Human Resources" or "Attention: Hiring Manager". Taking the time to call and obtain a contact name shows a higher level of interest and initiative.
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