Roblox
Senior
Own the chat architecture that Roblox's billion-user communication platform runs on
Roblox is hiring a senior front-end/client engineer to standardize and platformize its text chat architecture across 2D and 3D experiences. You'll interview for client/server design chops, large-scale consumer UI experience, and cross-team collaboration with Avatar, Game Engine, and Trust & Safety.
Step into this interview
Free · a live voice mock calibrated to this exact role
What this interview tests
- Client/server architecture for real-time chat at scale
- Cross-platform front-end engineering (React/React Native/native)
- Reusable component/platform design
- Cross-functional collaboration with Trust & Safety and Game Engine
- Performance optimization (memory, framerate)
- Project ownership and mentoring
Common question themes
Design a scalable, reusable chat/messaging architecture for millions of concurrent users
Describe standardizing fragmented client implementations into shared components
Client/server tradeoffs: what lives on device vs. server for real-time features
Balancing safety/moderation constraints with UX flexibility for creators
Debugging or optimizing client performance (memory, framerate) on a consumer app
Leading a project end-to-end and mentoring engineers on it
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