Software Engineer, GenAI Platform

Roblox Corporation; San Mateo (CA); On-site; USD 153,000 - 197,000; Full time

Job summary

Roblox Corporation in San Mateo, CA, is hiring for an early career role in Foundation AI. You will design, code, test, launch, and operate production features spanning model training, inference, and service infrastructure, collaborating across product, research, data, and safety teams.

The role emphasizes building scalable, reliable AI systems, with hands-on work in ML frameworks, distributed systems, and developer tooling, while learning and growing with a fast-moving tech platform.

Qualifications

• Undergraduate/graduate degree in computer science or related engineering field.
• 1–3 years of experience in software engineering, distributed systems, cloud services, or related area.
• Experience building projects through coursework, internships, research, or personal work.
• Working knowledge of Go, Python, or Rust and willingness to learn new technologies.
• Interest in machine learning, generative AI, distributed systems, data infrastructure, or developer platforms.
• Strong communication skills and willingness to collaborate across teams and disciplines.

Responsibilities

• Build platforms and services that power machine learning, generative AI and agentic platform experiences across Roblox.
• Explore emerging technologies, including ML frameworks, LLMs, agentic systems, distributed systems, and GPU infrastructure.
• Improve speed, reliability, observability, and cost efficiency of AI development.
• Contribute to systems operating at Roblox scale while balancing quality, latency, reliability, and responsible data use.

Job description

San Mateo, CA, United States Early Career ID: 42391

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.

About the role:

Foundation AI builds the platforms, services, and infrastructure that enable machine learning and generative AI across Roblox. In this role, you’ll work across areas such as model training and inference, LLM services, Agent infrastructure, data systems, experimentation, evaluation, and developer tooling while learning how to build reliable systems at scale. You’ll design, code, test, launch, and operate production features, partnering with teams across product, research, data, infrastructure, safety, creator, engine, discovery, and economy. You will report to an Engineering Manager within Foundation AI organization.

You will:

• Build platforms and services that power machine learning, generative AI and agentic platform and product experiences across Roblox.
• Explore emerging technologies, including ML frameworks, LLMs, agentic systems, distributed systems, and GPU infrastructure.
• Improve the speed, reliability, observability, and cost efficiency of AI development
• Contribute to systems operating at Roblox scale while balancing quality, latency, reliability, and responsible data use.

You have:

• You have an undergraduate/graduate degree in computer science or equivalent experience in engineering, a related technical field.
• 1–3 years of experience in software engineering, distributed systems, cloud services, or a related area.
• Experience building projects through coursework, internships, research, or personal work.
• Working knowledge of one or more programming languages, such as Go, Python, or Rust, along with an interest in learning new technologies.
• Interest in machine learning, generative AI, distributed systems, data infrastructure, or developer platforms.
• Strong communication skills and a willingness to collaborate across teams and disciplines.

Annual Salary Range

$153,120 — $196,750 USD

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).

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. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.

For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.