LinkedIn Recruiter - LinkedIn Recruiter is a recruiting tool to hire talent from LinkedIn.
Intercom on Product Management - The ultimate resource for aspiring product managers
Lever - A modern web app for hiring. Lever is a simple, powerful way to manage lists of candidates during the hiring process.
The Product Management guide - A book on how to create and ship products that people love
Greenhouse - Greenhouse Software makes companies great at hiring.
Software Product Management Stack - Resources & tools to help you manage your software product