Not even professional proofreaders can easily proofread their own work. Once you’ve made a typo, it’s hard to catch it yourself. For that reason, it’s a good idea to have one or two trusted friends take a look at your resume before you send it in for consideration. Use this resume proofreading checklist first, then ask someone else to give it a final review to be sure it’s perfect before you click send or upload to apply for a job.
It is much easier to update your resume periodically than all at once, so even when you’re employed, set a reminder to refresh your resume every three months, while the information is still fresh in your head. This will make your next job search much easier, should you decide to switch companies or careers in the future.