Recruiters check both documents, and the mismatch is what stands out
Once a resume gets someone's attention, checking the candidate's LinkedIn profile is a near-automatic next step for most recruiters and hiring managers. What they're often unconsciously checking for isn't new information — it's consistency. A job title, date range, or accomplishment that contradicts what's on your resume raises a small, needless question mark before you've had any chance to explain it in person. The goal isn't to make LinkedIn identical to your resume word-for-word, but to make sure the facts line up and the profile does work your resume can't.
The headline is not just your job title
LinkedIn's default headline is your current job title and company, but you can (and generally should) customize it. A generic "Software Engineer at Acme Co" tells a reader nothing your job title didn't already say. A stronger headline states your specialization or the specific value you bring: "Backend Engineer specializing in payment systems and API reliability" gives a recruiter searching for those specific terms a reason to click through, and gives a human reader an immediate sense of your specific niche.
The About section is your summary, expanded
Where a resume summary is compressed to three or four lines, LinkedIn's About section has room to breathe — several short paragraphs, written in first person, covering your background, what you specialize in, and what you're looking for next if you're open to it. This is also a natural place to work in language a recruiter might search for, since LinkedIn's internal search weighs this section, but write it as genuine prose for a human reader first — a section that reads as an obvious list of stuffed keywords undermines the credibility it's meant to build.
Keep the facts consistent, not the wording
Job titles, company names, and date ranges should match your resume exactly — these are the specific, checkable details that create an obvious inconsistency if they don't line up. The actual bullet-point descriptions under each role don't need to be identical wording; LinkedIn is a reasonable place to describe your work slightly differently, in a bit more first-person, conversational language, than the terser phrasing a resume uses. Matching facts, not matching prose, is the goal.
Skills, endorsements, and recommendations
List skills that are genuinely current and relevant, and prioritize the order — LinkedIn shows only a handful prominently before a reader has to click "show more," so put your strongest, most relevant skills first rather than leaving them in whatever order you originally added them. Endorsements from people who don't actually know your work well add little real credibility; a smaller number of endorsements from people who genuinely worked with you means more than a large number from casual connections. A few specific, genuine written recommendations from former managers or close collaborators do more for your credibility than any number of one-click endorsements.
A complete profile photo and banner
Use a real, current, professional-looking photo — profiles without one are noticeably less likely to get a second look, largely because an anonymous gray silhouette reads as an inactive or abandoned account rather than a real, engaged professional. A custom banner image isn't essential, but a plain, appropriate one looks more finished than LinkedIn's default background.
Turn on "Open to Work" thoughtfully
LinkedIn's "Open to Work" setting can be visible to everyone or limited to recruiters only. If you're currently employed and want to explore opportunities discreetly, the recruiters-only setting keeps this from being visible to your current employer's network while still surfacing you to people actively searching. If you're not currently employed, the fully public version can genuinely increase visibility with no real downside to weigh against it.
FAQ
Do I need to update LinkedIn every time I update my resume? Not every minor resume tweak, but any change to a title, company, or date range should be reflected on both, since those are the specific facts a reader is most likely to cross-check.
Should my LinkedIn About section be written in first or third person? First person is standard and reads as more natural and personal — third person tends to read as slightly stiff or, in the more extreme cases, unintentionally like a press release about yourself.
How important are LinkedIn recommendations really? A handful of specific, genuine recommendations from people who worked closely with you add real credibility. A large number of generic, vague ones add much less — quality and specificity matter more than volume.
Should I connect with recruiters I don't know personally? Yes, this is a normal and expected part of how LinkedIn is used for job searching — a brief, genuine note about why you're connecting (rather than a blank request) tends to get a better response than a cold, unexplained connection request.
Is it bad to have a mostly empty LinkedIn profile if I'm just starting my career? An incomplete profile is a missed opportunity more than an active red flag — filling in education, any relevant projects, and a genuine About section is worth the time even early on, since recruiters do check profiles at every career stage.