Facebook Software Engineer, Integrity and Anti-Abuse (WhatsApp - LONDON) in London, United Kingdom
WhatsApp is a fast, simple and reliable way to talk to anyone in the world. More than 1.5 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere. WhatsApp is not only free but also available on multiple mobile devices and in low connectivity areas - making it accessible and reliable wherever you are. It's a simple and secure way to share your favorite moments, send important information or catch up with a friend. WhatsApp helps people connect and share no matter where they are in the world.
Join a world-class engineering-driven company, where you'll have instant impact from day one. WhatsApp has an open culture and flat organization. Every engineer is literally sitting a few steps away from the founders. As a member of our engineering team you will tackle challenging issues of scale, reliability and security while delivering a delightful, simple user experience to a global user base. If you love writing code, hate tons of meetings, then come talk to us.
The ideal candidate will have industry experience working and building scalable detection systems on a range of problems that keep spam, fraud, deception, and abuse at bay, and are resistant to adversarial iterations. WhatsApp integrity faces unique problem of fitting abuse without having content. If you want to learn more about our team, you can see the video of a talk describing our main concepts: https://developers.facebook.com/videos/f8-2017/how-whatsapp-reduced-spam-for-over-1-billion-people/
Develop situational awareness in a highly adversarial environment and keep WhatsApp anti-abuse capabilities ahead of our attacker
Write clean, awesome and bug free code using Erlang, Haskell, PHP to build abuse detection systems
Scale servers to handle millions of users
Develop system monitoring and instrumentation tools
Building ML models for abuse detection
Experience building abuse detection systems
1+ years of experience in one or more of the following areas: abuse, spam or fraud detection, trust & safety
2 + years experience in either Erlang, Haskell, PHP, C++
Knowledge of Unix internals
Experience working in a team
BS in Computer Science or equivalent