Mobile Messaging & Advertising Data Platform


COMPANY SIZE Between 10 and 25

# OF ENGINEERS Between 5 and 10


TAGS Mobile, Advertising Platforms, Consumer Engagement, YC Summer 2011


What do we do?

Our mission at OneSignal is to become the ubiquitous platform for all mobile and web notification messages that apps send to users, and we’re well on our way. Our easy-to-use developer SDKs empower developers and marketers to deliver effective push notifications to their users on all smartphone platforms.

Technical challenges

1. Sending and monitoring tens of millions of notifications per day across multiple endpoints.
2. Providing an API that smoothly scales to support apps that hit the top 10.
3. Analyzing behavioral data across hundreds of millions of users.
4. Providing developer friendly dashboards, documentation, and APIs.

Why join us?

* Incumbents in the space are focused on building tools that appeal to large corporations and CMOs.
* By contrast, we're much more focused on appealing to developers and the developer community. This is akin to Stripe's strategy for growth. It worked for them, and we're excited to recreate that success in the app and messaging space.

Mission / Positive Impact on the World:

* We're democratizing access to great messaging products for all mobile and web developers.
* Making user engagement easier for developers.

Other Reason:

1. Competitive salary, generous equity, health insurance, flexible hours, daily meals and snacks paid for by the company.
2. The chance to work in the former home of the Byte Shop, the first retailer of the Apple computer.

Our press coverage

Our Founders

George Deglin

Founder & CEO    

Previously the founder & CTO of Uversity, backed by Founders Fund & The Gates Foundation. Now the founder of OneSignal, backed by YC, SV Angel, and Rakuten. Studied Computer Science at UC Berkeley. Skilled founder, advisor, and developer.

Our tech stack

  • Rust
  • Ruby on Rails
  • Redis
  • Objective-C
  • Go
  • Swift
  • Ruby
  • PostgreSQL
  • Java
  • Objective C
  • Rails

Our investors

  • Rakuten
  • Y Combinator
  • Start Fund
  • SV Angel
  • Justin Kan
  • Zach Coelius
  • Tamares