Most professional executive resume writers can help you distinguish the differences between each other and why the differences matter. Since both a resume and a LinkedIn profile show the same person, it makes sense that the data from their previous jobs and projects are consistent. You can choose to present a traditional resume and a LinkedIn resume differently, but the chronology and main facts must remain the same between the two. Having a resume suggests a job search, while having a LinkedIn profile doesn't.
So, should you indicate that you're looking for work in your profile? With the exception of certain job search settings on LinkedIn that aren't clearly visible, the answer is no. Yes, since your resume and your LinkedIn profile are different, they'll look different at first glance. But when someone carefully examines your work experience, they'll realize that the information is the same. This leaves no room for doubt in an employer's mind about how qualified you are.
You only need to have one LinkedIn account and profile to avoid confusing your network and diminish LinkedIn's ability to help you. The best way to stand out in the selection process is to quantify your work experience in both your resume and your LinkedIn profile. Usually, your resume is updated and shared when you're in active job search mode, while LinkedIn's main function is to create a professional network, a new job may be a result, but it's usually not the only goal. While your resume and LinkedIn profile are important job search tools, they serve slightly different purposes and are read by slightly different audiences under different conditions.
Otherwise, it may surprise some because of a significant mismatch between the way you present yourself on LinkedIn and in your resume (or in your current position). Your main purpose when writing your resume and LinkedIn profile is to connect with the hiring manager or recruiter. Your resume must be optimized with the right keywords so that it can beat the ATS, and your LinkedIn profile must be optimized to appear in search results when a hiring manager or recruiter seeks to hire professionals with specific skills or experience. While there are clear differences between your resume and your LinkedIn profile, they should (for the most part) look the same.
I've seen many cases where a candidate has an excellent and informative resume, but when I look at their LinkedIn profile, I see only the basics of their career. Because of these similarities, copying the content of your resume directly to your LinkedIn profile is usually a good idea. LinkedIn is essential for an effective job search, and is a powerful networking tool. Your LinkedIn profile must be designed with this important difference in mind.
While you'll only have one LinkedIn profile that does the overall job of presenting your professional personality to the online world, you should ideally have a different resume for each position you apply for, each carefully designed to fit the requirements of each position.