What we do:
research iOS and Android attacks and countermeasures
build backend services to filter and analyze system-level telemetry from the millions of devices running our software
develop heuristics and models to detect malicious activity
collaborate with Square's mobile, hardware, and anti-fraud teams
Why it's cool:
We work across many disciplines: security, mobile, backend, data infrastructure, data science.
Our system is critical: without it, some Square products couldn't exist.
Several companies have built systems like this; ours is the most advanced.
We catch real hackers and criminals.
Who we're looking for:
reverse engineers familiar with C
mobile engineers familiar with C and with Android or iOS internals
an engineering manager (NYC only)
Tech we use: C, Java, Objective-C, Python, Ruby MySQL, Vertica, Spark
If this matches your background and interests, we'd love to talk to you -- email me at email@example.com