About the company
Roblox is 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.
Responsibilities
- Engineer and scale the communication infrastructure that supports millions of concurrent users, architecting highly reliable systems that keep chat civil, proactively detect violations using machine learning models and data pipelines, and define how people connect on Roblox.
- Work with cutting-edge ML—model tuning and prompt engineering—to build safe chat experiences that are novel even by industry standards.
- Contribute as needed to the full spectrum of communication product development, from core infrastructure and safety systems to user-facing features.
- Introduce and improve our processes to help us be more effective and efficient.
- Enforce high quality standards while we iterate on feature development.
- Collaborate with other engineering and product teams (Game engine, Creator, Trust & Safety to name a few) at the company to push the boundary of what is possible.
- Self-organize and take ownership of projects throughout its full lifecycle.
Requirements
- Experience in backend software development.
- 2+ years industry experience building and supporting ML systems in a production environment.
- Hold a Bachelor’s degree or equivalent experience in Computer Science, Computer Engineering, or a similar technical field.
- Experience collaborating with backend engineers on client/server design and architecture for high-scale products, including knowledge of performance principles like caching and modern technologies.
- Experience collaborating with cross-functional partners in Product, Design, and Data Science to drive meaningful results that align with the team's overarching vision.
- Responsible: you build systems that work and keep on working reliably. You are thorough in your designs, rigorous in handling potential failure cases, and diligent in automated testing.
- Analytical: Excited to investigate large, ambiguous problems, and quantify the problems and the solutions.
- Creative: You take a creative and strategic approach to solving hard problems and driving new tools/functionality for our end users and game developers.
- Team-oriented: You are able to work well as part of a team and know how to collaborate with all participants to develop the best solutions. Able to write clear design specs, mentor junior engineers, and guide projects from beginning to end.
- Data-driven: focused on quality metrics and monitoring.
Bonus
- Experience building communication products and features.
- Experience working closely with design, strong design interest/background.
- Experience with LLMs.
- Experience using big data query/processing languages and tools such as SQL, Hive, Spark and Airflow.
- Experience of test driven development.
Conditions
- Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday.