Jobs for Developers

Senior Data Scientist - Engine Systems

RobloxFull-time$295k - $359kSan Mateo, CaliforniaDec 13, 2023

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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 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.


The Core Engine team is missioned to build world-class elastic game engine technology that powers engaging experiences. We build the core technology that powers our 3D worlds including rendering, simulation, networking and systems. As a Senior Data Scientist, you'll partner with engineers, data scientists, technical program managers, and leaders across the company in our efforts to improve the quality and performance of our game engine and the user generated content that runs on top of it. Your work will touch every part of the engine, from threading and memory management to physics and scripting. You will define top line metrics and measure the impact of critical features and improvements, while discovering areas of opportunity through dashboards, analysis and A/B experiments. You will report directly to the Data Science Leader overseeing our Core Engine DSA team.

You Are:

  • Passionate about data. You have the curiosity applying new techniques and tools to extract value from data. You have a degree in Statistics, Economics, Computer Science, Operations Research or other relevant fields.
  • Enthusiastic and engaged. You understand that analysis must be presented in meaningful ways and lead spirited discussions about the findings. You can explain technical concepts to non-technical audiences and discuss appropriate tradeoffs.
  • An expert collecting and transforming data with SQL and a scripting language such as Python or R. You're experienced in automating efforts and crunching massive volumes of data using big data frameworks such as Spark, Hadoop or Flink.
  • Experienced at developing models to draw insights from data. You use regression techniques, data mining, statistical techniques and deep learning to create new, scalable solutions to solve difficult business problems. You understand when to apply the appropriate methodology, tool, framework to maximize impact.

You Will:

  • Establish success metrics for Engine Systems performance -- e.g. what systems performance metrics matter to the end-users? How are Engine performance affecting user engagement and monetization?
  • Operationalize and scale metrics monitoring. Build dashboards that enable quick slice and dice as well as root cause analysis. Work with engineers to detect and investigate abnormal trends. Identify opportunities to improve.
  • Understand how networking, rendering, simulation and more help build a fast, scalable and engaging experience through the game engine. Apply dynamic approaches to improve user experience from the Engine perspective by controlling these factors.
  • Navigate uncharted areas and collaborate with partners across different organizations including Engine, Growth, and Creator teams.
  • Access raw data, and then transform it, analyze it, and render it in a compelling way - all using a custom analytics tool kit built from state-of-the-art open-source libraries.
  • Use A/B experiments and causal inference to determine success of product feature launches.
  • Influence how Roblox provides a better experience for the community of players and developers.

You Have:

  • Advanced Degree and/or PhD in Statistics, Computer Science, Physics, Applied Math, Economics, Engineering or other related quantitative fields
  • 5+ years of relevant industry experience; background in game engine, system performance, etc.
  • Data engineering experience. e.g. telemetry logging, data pipeline building, dashboard design
  • Experience applying creative first-principles reasoning to solve ambiguous problems
  • Experience leading and presenting analytics results and enjoy data storytelling to influence engineering teams and leaders
  • Experience driving an area as an individual contributor and thought leader
For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future.  All full-time employees are also eligible for equity compensation and for benefits.
Annual Salary Range
$295,490$359,170 USD

You’ll Love: 

  • Industry-leading compensation package
  • Excellent medical, dental, and vision coverage
  • A rewarding 401k program
  • Flexible vacation policy
  • Roflex - Flexible and supportive work policy 
  • Roblox Admin badge for your avatar
  • At Roblox HQ: 
    • Free catered lunches five times a week and several fully stocked kitchens with unlimited snacks
    • Onsite fitness center and fitness program credit
    • Annual CalTrain Go Pass

Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.


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