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# Software Engineer, Foundation & Luau Platform

- **Company:** Roblox
- **Location:** San Mateo, CA, United States
- **Experience:** Expert
- **Salary:** $196,750.0 - $243,290.0
- **Contract:** Permanent contract
- **Skills:** Apple IOS, Applications Architecture, Mobile Application Development, Code Coverage, Code Review, Software Debugging, Lua (Scripting Language), Routing, Data Streaming, Feature Engineering, ReactJS, Tablet Computers, Material UI, Roblox, React Native
- **Published:** October 17, 2026
- **Apply:** https://careers.roblox.com/jobs/8259606?gh_jid=8259606

## About the Role

* 4+ years of professional experience building and shipping client applications, ideally on mobile (iOS, Android) or desktop, with a strong foundation in application architecture
 * Strong hands-on experience with React and a solid understanding of how it works, including its component model, state management, and rendering behavior, ideally in an application setting such as React Native rather than purely web
 * Experience designing shared frameworks, UI platforms, or core libraries that other engineers build on
 * A solid understanding of client rendering and layout performance across multiple screen sizes, form factors, and orientations
 * Strong debugging and profiling skills, with experience diagnosing performance issues such as slow startup, visual stutter, and memory pressure
 * Experience with feature flagging, staged rollouts, and experiment-driven launches
 * Strong written and verbal communication skills, and the ability to align multiple teams around a technical plan
 * Comfort working in a large, evolving codebase and migrating legacy code incrementally

Bonus Points

 * Experience with Luau or Lua
 * Experience with React Navigation or comparable routing libraries
 * Experience with native mobile development on iOS or Android
 * Experience with server-driven UI or dynamic UI delivery systems
 * Experience building cross-platform applications that run on mobile, desktop, and console
 * Experience supporting other engineers in adopting a shared platform, through documentation, migration guides, or direct developer support

## Description

* Design and build the frameworks and APIs that Roblox's UI is built on, including layout and navigation systems, server-driven UI, and a shared component library
 * Build and evolve the core systems beneath the UI, such as navigation, routing, state management, and data flow, so features load quickly and behave consistently
 * Drive startup performance, transition smoothness, and layout stability across the client on phones, tablets, and desktop, using traces and telemetry to set measurable quality bars

 * Roll out platform changes safely at scale, using feature flags, staged rollouts, and side-by-side validation of old and new implementations, with fast rollback when needed
 * Drive adoption of the platform across Roblox by partnering with product, design, and feature engineering teams to guide them onto our frameworks and components, and turning their feedback into a better platform
 * Raise the quality bar through thoughtful code review, strong test coverage, and clear documentation, and mentor other engineers