You can create a LinkedIn QR Code by following the steps given below:
Go to an Linkedin QR Code Generator. You'll need to login/sign-up for a Scanova account to proceed
Enter the URL of your LinkedIn Profile or Company page and click on Create QR Code
You'll see a dialog box, asking you to name and save the QR Code. Once you've finalized all the details, click on Save
You can then proceed to Design and Download your QR Code
If you wish to share your other social media profiles as well, you can create a single Social Media Links QR Code to do so.