Principal Software Engineer, Ads User Experience

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.

The Ads User Experience team at Roblox is dedicated to developing cutting-edge software and integrations that facilitate ads on Roblox. Our focus lies in building a first-of-its-kind ads system in our Game Engine. We are developing different ad formats and integrations starting with video.

We are looking for a Principal Software Engineer with an expertise in C. This is a high-impact position. Ads at Roblox is at the beginning of our journey presenting an amazing opportunity to get in at the ground floor and help build a multi-billion dollar business from scratch. We are approaching this challenge with a strong focus on performance and a deep respect for our community ensuring everyone continues to have an exceptional experience on Roblox. As we move toward enabling cooperative experiences for an infinite number of players in infinitely scalable worlds we are looking for a Senior Engineer who is both technically exceptional and capable of delivering meaningful real-world impact.

You Will:

• Help build a first-of-its-kind ads system within the Roblox Game Engine
• Develop new ad formats and integrations starting with video
• Contribute to the design and performance of systems that scale across all Roblox experiences
• Play a foundational role in shaping a multi-billion dollar Ads business
• Build with an emphasis on user experience performance and platform integrity
• Work closely with cross-functional teams to deliver thoughtful community-respecting ad solutions

You Have:

• Experience: 6 years working in deep complex C codebases on challenging technical problems
• Analytical skills: Strong background with app metrics analytics or data science with the ability to interpret and act on insights
• Passion for data: High standards for accuracy and a deep understanding of reliable data systems
• Responsibility: Proven ability to build and maintain robust production-quality systems
• Curiosity: Eagerness to learn and stay at the forefront of emerging technologies

Required Experience:

Staff IC