An objective statement is a line that tells what type of role or job you are pursuing. While some experts say you still need to include this on your resume, most agree that objective statements are a thing of the past.
If you are applying to open jobs that the companies has listed on their website, an objective statement is unnecessary. The company knows which job your resume is associated with, and they know you want it.
You may want to send your resume to a company that currently has no listed job openings. In this case, you may want to include an objective statement or a cover letter to let them know what type of role you are seeking.