OneSignal, a Mountain View, CA-based push notification delivery platform, raised $7M in Series A funding. The round was led by SignalFire with participation from existing investor Rakuten Ventures, Zach Coelius, Auren Hoffman, Gil Elbaz and Devin Guan. In conjunction with the funding, Ilya Kirnos, Co-Founder and Managing Partner, SignalFire, will be joining OneSignal’s Board of …