Senior / Principal Data Scientist, Matchmaking

Roblox
San Mateo, CA, United StatesPosted 24 February 2026

Job Description

<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. </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. </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><strong>WHY DATA SCIENCE ANALYTICS?</strong></p> <p>The Data Science Analytics organization's 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.</p> <p><strong>WHY MATCHMAKING?</strong></p> <p>Every day, millions of players explore immersive worlds created by our global community. Our mission is to optimize these connections at an unprecedented scale — matching each player to the most engaging experience, in real time, across a dynamic global ecosystem. As a Senior/Principal Data Scientist on the Matchmaking team, you'll help shape the future of how our community discovers, connects, and plays together, solving some of the most challenging optimization and systems problems in the industry.</p> <p>Matchmaking is the foundational system that connects millions of users to tens of thousands of experiences across our global platform infrastructure. You'll partner with engineers, infrastructure teams, and product leaders to solve some of the most complex optimization problems in the industry. Your work will span from low-level resource allocation algorithms to high-level capacity planning strategies. You will define KPIs and measure the impact of matchmaking improvements while discovering optimization opportunities through advanced analytics, modeling, and experimentation. This role sits at the intersection of cutting-edge operations research, large-scale systems engineering, and user experience optimization.</p> <h3><strong>You Will:</strong></h3> <ul> <li>Design and optimize large-scale matching algorithms to connect millions of users with thousands of experiences in real time.</li> <li>Define and track matchmaking performance metrics that directly improve user satisfaction and system efficiency.</li> <li>Build scalable monitoring and analytics systems for continuous evaluation and root cause analysis.</li> <li>Partner with engineering and infrastructure teams to implement high-performance, low-latency matchmaking pipelines.</li> <li>Develop and deploy advanced optimization models using state-of-the-art mathematical frameworks and large-scale telemetry data.</li> <li>Validate and iterate on improvements through rigorous experimentation and causal inference.</li> <li>Collaborate with our developer community to create transparent and customizable matchmaking solutions that empower creators.</li> <li>Influence platform strategy and contribute as a technical thought leader to advance Roblox's global ecosyste ... (truncated, view full listing at source)
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