San Francisco startup TripleByte which uses coding quizzes and machine learning to match would-be employees with open jobs has raised $35 million in a Series B financing round led by YC Continuity, Y Combinator’s investment fund.

After a year in which revenue grew three times (over $1 million monthly) and headcount doubled from 20 to 40, it’s attracted funding from a raft of investors including Y Combinator.

Harj Taggar, CEO and cofounder said that the fresh funds will enable Triplebyte to expand beyond silicon valley into Los Angeles, New York, Seattle, and Boston later in the year.