LinkedIn, founded by former PayPal employees in 2002, is used mainly for professional networking, and reported more than 200 million registered users in more than 200 countries and territories as of January 2013. It is one of the most profitable companies in the Internet sector, with gross margins of roughly 90 per cent.

LinkedIn's head of recruiting Brendan Browne (pictured) says there are basic principles of hiring that many recruiters don't grasp. Photo: LinkedIn

2 most common hiring mistakes

As LinkedIn’s head of recruiting, Brendan Browne is in charge of bringing the best talent to a company dedicated to helping match employers and employees.

Since joining LinkedIn in 2010, Browne has found two recurring mistakes that hiring managers make, he told Business Insider.