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Principal Software Engineer, Ads User Experience

Roblox
San Mateo, USAfull_timePosted 4 Nov 2026

About the role

<div class="content-intro"><p><span style="font-weight: 400;">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.&nbsp;</span></p> <p><span style="font-weight: 400;">At Roblox, we’re 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.</span><strong> </strong><span style="font-weight: 400;">We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there.&nbsp;</span></p> <p><span style="font-weight: 400;">A career at Roblox means you’ll 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.</span></p></div><p>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.&nbsp;</p> <p>We are looking for a Principal Software Engineer with an expertise in C++.&nbsp; 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.</p> <p><strong>You Will:</strong></p> <ul> <li>Help build a first-of-its-kind ads system within the Roblox Game Engine</li> <li>Develop new ad formats and integrations, starting with video</li> <li>Contribute to the design and performance of systems that scale across all Roblox experiences</li> <li>Play a foundational role in shaping a multi-billion dollar Ads business</li> <li>Build with an emphasis on user experience, performance, and platform integrity</li> <li>Work closely with cross-functional teams to deliver thoughtful, community-respecting ad solutions</li> </ul> <p><strong>You Have:</strong></p> <ul> <li&

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Company

Roblox

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