Recruiters actively search LinkedIn for candidates before a role is even posted, filtering by job title, skills, and keywords. And when you do apply somewhere, looking up your LinkedIn is usually one of the first things they do.
You might think that you can just copy paste your resume experience into your LinkedIn experience section and call it done, but they serve two very different purposes.
Your resume is a filtered document, you keep only what’s useful to that role and cut what’s irrelevant to keep it tight. You also submit it individually only when you apply.
LinkedIn is the opposite: it’s searchable and public. Someone could Google some keywords and land on your LinkedIn. That means you have more room for detail in LinkedIn.
On LinkedIn you can expand on things your resume doesn’t have space for, like the context behind a project, the business problem you were solving, or the tools you used. None of that makes sense in a resume but on LinkedIn it can help your discoverability.
The tone can also be more human here. First person is fine and you don’t have to sound like a job description.
If your resume says you grew revenue by 40%, your LinkedIn should say the same. Discrepancies between the two are one of the first things a recruiter notices. The two should complement each other, not contradict each other.
Write your LinkedIn first with as much detail as feels right, then pull the most relevant parts into your resume when you apply.