Senior Data Scientist, Engine Systems

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 DATA SCIENCE & ANALYTICS

The Data Science & Analytics organizations mission is to increase our speed frequency and acumen of making decisions at scale by instilling a data-influenced approach to building products. We cover a wide area of the data spectrum including analytical data engineering product analytics experimentation causal inference statistical modeling and machine learning. Aligned and partnering with product verticals we use this extensive tool belt to discover new opportunities and unmet use cases influence and shape the product roadmap and prioritization build data products and measure impact on our community of players and developers.

WHY ENGINE Systems

Engine Systems team builds the foundational systems for networking servers asset loading and data management all working in harmony to deliver stable and engaging experiences.

This role will focus on the System foundation that provides low level technology to enable efficient development of Roblox itself and the games within it. We build profiling support concurrency memory management scalability systems and crash reporting. We manage the user experience in real-time and monitors device constraints (like a low-end phone vs. a high-end PC) and adjust graphics and performance on the fly.

You Will:

• Define Reliability & Stability Metrics Work on system metrics telemetry logging and validation. Establish key performance indicators for Engine systems such as crash rates runtime error codes and quality metrics that directly impact creators and players.
• Transform & Visualize Data for Actionable Insights Access and process raw telemetry data build robust analytics pipelines and deliver clear insights. Help develop solutions that allow the Engine to intelligently scale quality up or down ensuring that every playerregardless of their hardwarehas a smooth interactive and immersive experience.
• Design Experiments & Apply Causal Inference Lead A/B experiments and causal analyses to identify performance opportunities understand the trade-offs between system stability and other quality factors measure improvements and feature launches to ensure data-driven decision-making.
• Drive Cross-Functional Collaboration Partner closely with Engineering Product Technical Program Managers and teams across Roblox (e.g. Creator Analytics Growth Infrastructure and Economy) to explore new opportunities and navigate ambiguous problem spaces.
• Shape the Future of Robloxs Foundation Influence how Engine systems evolve help deliver a scalable high-performance and creator-empowering platform.

You Have:

• Advanced degree or equivalent experience in Computer Science Statistics Engineering or a related field with a focus on large-scale system analysis.
• 4 years as a Data Scientist with a proven track record of working on high-volume telemetry product quality optimization.
• Expertise in processing massive noisy datasets (like crash logs or telemetry pings) and building scalable pipelines for reporting.
• Experience using first-principles reasoning to debug complex ambiguous system failures that dont always have a clear cause.
• Experience presenting deep technical results to Engineering leaders and using data storytelling to prioritize work and future investment.
• Direct experience with game engines or systems performance preferred
• Experience in game development or working on real-time interactive systems preferred
• A background or interest in memory management or OS-level interactions preferred