How to get the details from webpage view source

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C#

ASP.NET

Hi al
I am getting the source of a webpage having job posting, and i need to get the jobdetails like Job Title, Skills, Job Location, Experience Level, Company Name, Address, Website URL, Phone from the source.
Using below code i saved web page source to string

WebClient client = new WebClient();
string source = client.DownloadString(CompanyURL);
Thanks.