Senior Software Engineer, Web Platform

Roblox•San Mateo, CA

4d•$243,290 - $295,250

About The Position

Roblox’s Consumer Apps, Platforms team owns and architects the core web platform powering the Roblox website. The team defines foundational architecture, frameworks, and infrastructure used by engineering teams to build fast, reliable web experiences for users worldwide. The Senior Fullstack Software Engineer will help evolve Roblox’s web infrastructure and build user experiences. The role involves architecting, building, and scaling the React- and Next.js-powered website, establishing engineering best practices, optimizing frontend performance, and mentoring engineers. The engineer will also collaborate across product, design, data science, and engineering to deliver polished features and improve the platform and development processes.

Requirements

At least 6 years of experience as a full-stack engineer, with a record of building and shipping production-level applications.
Expertise in modern frontend technologies and component-based UI frameworks such as React.
Expertise in an object-oriented programming language, such as C#, Java, or C++.
Solid backend development experience, including API design, microservices, databases, and scalable server-side logic using languages such as Node.js.
Deep understanding of the application lifecycle, from architecture and design through deployment and maintenance.
Strong communication and collaboration skills, including the ability to lead discussions and work effectively with product, design, and engineering teams.
Bachelor’s or Master’s degree in Computer Science, or equivalent professional experience.
An agentic mindset and fluency with AI coding tools, including the ability to identify work that can be automated, delegated, and structured for people and agents.

Nice To Haves

Experience with Next.js, Node.js, Tailwind CSS, C++, or Lua.
Experience contributing to or managing a design system.

Responsibilities

Design, build, and maintain scalable, reliable, and performant web applications using React and Next.js.
Own core web architecture, build systems, and CI/CD pipelines to support a strong developer experience for product teams.
Drive the product lifecycle with product, design, and data science teams, turning complex requirements into high-performance, polished features.
Lead systematic improvements to web development processes and architecture.
Promote clean, maintainable, and well-documented code.
Keep current with frontend and backend development, component-based frameworks, and UI/UX trends to drive continuous improvement.
Mentor engineers across the team.