Senior Software Engineer, Foundation & Luau Platform

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

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

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

For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits as described on this page .

Annual Salary Range

$196,750 — $243,290 USD

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).

Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.

For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.