Senior Software Engineer (Frontend)

What You’ll Do:

In this Frontend Senior engineer role, you will be a key contributor in shaping the future of Roblox’s application surfaces. You will develop our frontend stack for consumer-facing surfaces, working across teams and technology platforms to ensure our solutions are universal and scalable​. This role involves working closely with other team members to implement frontend features, ensure smooth data flow through the client, and contribute to building reliable and scalable user experiences. You will have the opportunity to work with modern frameworks and also dive into our custom Luau-based tech, bridging the best ideas from the web ecosystem into Roblox’s unique environment. If you are excited by the idea of creating the foundation on which dozens of engineers will build new features – and doing it in a way that delights our end-users with speed and stability – then this role will be perfect for you.

Join us and help build the frontend platform that underpins the metaverse! Together, we’ll enable incredible new experiences for our users and a productive, joyful development experience for our engineers.

You have:

• Bachelor’s degree in Computer Science or a related field, or equivalent practical experience​.
• 4+ years of software development experience, including substantial experience building user-facing frontend applications. Proven track record in implementing complex frontend systems for large-scale applications​ (experience with large-scale or high-traffic applications is a plus​).
• Deep expertise in modern mobile/web/frontend technologies – including proficiency in HTML5, CSS3, and JavaScript/TypeScript or mobile equivalents – and hands-on experience with frameworks such as React​. Comfortable with component-based architecture and state management patterns (Redux/Flux or similar) for building maintainable UIs.
• Strong programming skills in one or more scripting languages relevant to frontend and tooling such as TypeScript, Swift or Kotlin, or the ability to quickly learn them​, is highly desirable. Familiarity with C++ or other low-level languages is beneficial for understanding our engine integration.
• Demonstrated ability to optimize frontend performance and diagnose issues. Knowledge of performance debugging, profiling, and benchmarking techniques on the client side​. Passion for ensuring fast, fluid user experiences on all devices.
• Excellent communication skills and a team-oriented mindset. Ability to work effectively with cross-functional teams, gather requirements, and drive consensus on technical solutions. Comfortable sharing ideas, documenting designs, and collaboratively solving problems in a large engineering organization.
• Experience developing applications or libraries across multiple platforms (web, mobile, desktop). Familiarity with building applications that serve users on Web, iOS, Android, Windows, etc. is desirable for ensuring a seamless cross-platform experience​.

You will:

• Contribute to Scalable Frontend Systems: Work with senior and principal engineers to implement and improve systems that power core Roblox surfaces like Home, Avatar, and Social, helping serve millions of users efficiently.
• Build Reusable Components: Develop and maintain frontend components using React-like paradigms and Roblox’s internal technologies to support fast and consistent UI development across teams and devices.
• Support the Luau UI Platform: Contribute to the maintenance and enhancement of Roblox’s internal Luau-based UI libraries by following modular design and state management best practices.
• Follow Engineering Best Practices: Write clean, testable, and maintainable code by applying established architectural patterns (e.g., Flux, MVC, MVVM) and team conventions.
• Collaborate Across Teams: Work closely with product managers, designers, and engineers to build cohesive user experiences and integrate your work into shared systems and surfaces.
• Focus on Performance and Quality: Help monitor and resolve performance issues related to responsiveness, memory usage, and load times under the guidance of more senior team members.
• Learn and Grow: Participate in code reviews, technical discussions, and team learning opportunities to grow your expertise in front-end architecture, Lua scripting, and scalable system design.