Principal Software Engineer, Ads User Experience

Roblox Corporation; San Mateo (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Roblox Corporation in San Mateo, California, is seeking a Principal Software Engineer for Ads User Experience to lead high-impact work on building an innovative ads system inside the Roblox Game Engine, with emphasis on performance and safety for millions of players.

You will design and implement new ad formats (starting with video), scale systems across all Roblox experiences, and play a foundational role in shaping a multi-billion dollar Ads business.

Qualifications

• Expertise in C++ to build high-performance ads systems.
• Experience designing scalable systems that run across all Roblox experiences.
• Strong ownership to deliver impactful ads features and integrations.

Responsibilities

• 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

Skills

C++

Ad system design

Performance optimization

Tools

Roblox Game Engine

Job description

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, 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. We’re 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 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.

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 The answer