CodeSignal, which helps companies such as Facebook screen and recruit software developers, has raised $50 million. : Open source is an engine for innovation, offering reliability, scalability and security for IT leaders intent on future-proofing their infrastructure. Learn how. The Transform Technology Summits start October 13th with Low-Code/No Code: Enabling Enterprise Agility. Register now! CodeSignal, a company that helps recruiters at companies such as Facebook, Uber, and Zoom screen software development candidates using automated technical assessments, has raised $50 million in a series C round of funding.