HackerRank, a coding challenge hiring platform, announced a $60 million Series D funding round, bringing its total raised to $115 million. Investors included the Randstad Innovation Fund and Recruit Holdings. The round was led by Susquehanna Growth Equity, a private equity and venture capital firm based in Philadelphia.

The company’s product enables recruiters to create role-specific technical challenges coders and invite candidates to take the challenge. HackerRank then reviews, scores and ranks the candidates.

HackerRank’s platform also has a focus on coders themselves, enabling them to practice coding skills and prepare for interviews.

“It’s never been more critical to hire the right developer with the right skill set,” said Vivek Ravisankar, CEO of HackerRank. “For more than a decade, HackerRank has helped growing organizations hire for the most in-demand technical roles on the market.”

HackerRank reported it has more than 2,800 customers and a community of 18 million developers. It is based in Mountain View, California.