At Facebook Reality Labs Research, software development turbocharges our scientific explorations and generates viable paths to the consumer products people will use for decades to come. If you're a C++ & low-level system expert with a passion for the future of machine perception on form-factor AR glasses and a love for solving novel problems from first principles, this is a rare opportunity to join AR/VR pioneers. In our collaborative environment, you’ll partner with expert research scientists, hardware engineers and software developers to build groundbreaking prototypes and create the technology that makes AR/VR universal. Step into the adventure of a lifetime as we invent the future and make science fiction real. We are starting a new confidential project within the team that involves building an end-to-end machine perception system that starts from sensor sensing the world all the way to photon landing in users eyes. Such a system requires a foundational layer to be built. You will work on building the platform abstracted low level networking layer for the Time Machine. You will engineer reliable, low latency network replication of client states to the backend. Integrate messaging middleware. Implement latency compensation. Implement fault tolerance. Implement compression and encryption.