Senior Software Engineer Bot Defense

Every day tens of millions of people come to Roblox to explore create play learn and connect with friends in 3D immersive digital experiences all created by our global community of developers and creators.

At Roblox were building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together from anywhere in the world and on any device. Were on a mission to connect a billion people with optimism and civility and looking for amazing talent to help us get there.

A career at Roblox means youll be working to shape the future of human interaction solving unique technical challenges at scale and helping to create safer more civil shared experiences for everyone.

WHY SAFETY

At Roblox we strive to connect a billion people with optimism and civility and the Safety organizations mission is to become the leader in civil immersive online communities. We systematically detect remove and prevent problematic accounts content and behavior and we make Roblox accounts secure and free from compromise. We cover a broad area of the tech spectrum including machine learning classifiers for 3D models experimentation automation detection workflows and AI-powered text filters. Aligned and partnering with product teams we use this toolbelt to discover new opportunities influence and shape the product roadmap and prioritization build safety products and measure the impact on our community of users and doing so we keep Roblox safe civil and inclusive and we foster positive relationships between people around the world.

WHY BOT DEFENSE

Roblox is a prime target for automated scripts that cause harm to our users and creators. Join our Bots and Spam team where you will tackle the critical challenge of safeguarding the platform against sophisticated bot threats.

While our current team Backend and ML engineers have made tremendous progress in improving our detection quality and mitigation efficacy we have reached a critical inflection point. To move from reactive firefighting to a hardened self-serve platform we need the missing piece of our puzzle: you.

We are seeking a founding Senior Full-Stack Engineer (Frontend focus) on the bot defense team to strengthen our in-house Bot Defense solutions at a full-stack engineer on our team you will bridge the gap between our advanced ML and backend solutions by building intuitive scalable and high-performance front-end user interactions to bring these defenses to life. You will have a direct impact on platform health ensuring fairness for creators and players by staying ahead of evolving threats in a high-stakes data-driven environment. If you are passionate about solving complex high-impact problems in an adversarial landscape this is the team for you.

This isnt just a traditional coding role; it is a platform-building role. If you want to solve complex high-stakes problems with a team that has already proven its ability to deliver major technical milestones we want to talk to you.

You will:

• The Founding Experience: You will have total autonomy to shape our frontend practices. As the first dedicated full-stack hire on the team you will have the opportunity to drive and establish next-generation technical and quality standards for the teams frontend stack.
• Visible Results: Develop high-quality user-centric and low-friction front-end solutions applying an adversarial and data-driven lens to proactively address security vulnerabilities.
• Bridge the gap: Translate complex backend detection intelligence into intuitive high-value interfaces.
• Build the ecosystem: Build a centralized platform to provide intuitive UX for the bot defense pod and access control options to various product teams within Roblox and to the wider creator community.
• Solve the toughest problems: Design build and deploy 0-1 secure efficient and reliable bot defense products focusing on the user experience for bot detection and mitigation

You Have:

• 4 years of experience as a Fullstack Software Engineer.
• 2 years of experience in front-end development of hands-on experience with UI scripting languages and modern frameworks such as JavaScript TypeScript Lua and React.
• 2 years of experience in compiled backend languages such as Golang Java or C#.
• Equivalent experience or a BS in Computer Science Applied Math Physics Engineering Statistics or another technical field.
• A strong focus on writing clear readable testable and highly monitored code.
• A customer-first mindset demonstrated through exceptional cross-team collaboration and delivery.