The best tip to improve resume is to provide specific numbers in the resume. This can be done by specifying your accomplishments that you want to be mentioned within your resume and provide them with numbers.
This can help recruiters and hiring manager to find something that is of their notice. This strategy will make the recruiter to stop for a second and take a close look at your resume and he can also find you a good candidate for any other position that can be good fit for you according to your qualifications.
People having previous experiences at any company whether it is a CRO, should mention about their positions they ever had, about the responsibilities and their involvement in the research works and should quantify their accomplishments. Being more specific about your accomplishments on your resume will grip the recruiter’s attention. This can help you on your resume into the interview process.