Job Description

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. 

At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. 

A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.

The Engine Networking Team pulls the players together by ensuring the communication of the game state to all. As a Principal Engineer on this team you will help the players experience the game as a nearly synchronous world. The networking and asset loading team plays a key role in a smooth experience for the players. You will work in all areas of the game platform in your quest for real-time communication of every part of Roblox.

You Will:

• Lead engineers with 8+ years of industry experience


• Understand the game networking with a passion for working with open source


• Be experienced with asset loading, rendering, and networking coming from a Game Engine/Studio. (Desirable)


• Be an amazing systems-level C++ programmer and be fascinated by the actual work the CPU does when you use smart pointers, templates, virtual functions, and blocks of memory, both structured and raw


• Have a keen to each millisecond of the network exchanges: You know where the time goes and how to reduce the waste


• Understand what happens on the operating system level when certain code is completed

You Have:

• Worked on the guts of a multi-player game engine, solving problems related to scale, performance, latency, and throughput in client/server environments.


• Worked on a very large multithreaded distributed system that connects millions of users worldwide.


• Worked on the devices Roblox supports - from desktop clients to mobile phone clients to console clients

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