How to Search and Capture Job Titles' LinkedIn Profiles in a Table, And Automatically Update It with New Matches

I have created this table and need to know how to do the following: 1) search for these job titles: HR Manager, CEO, President 4) capture LinkedIn profile for each job title and email 3) Automatically update the table each time a new company matches the search criteria, and automatically updates job titles/LinkedIn profile/email, etc.