Software Engineer, GenAI Platform

Overview

Foundation AI builds the platforms, services, and infrastructure that enable machine learning and generative AI across Roblox. This Software Engineer role works across model training and inference, LLM services, Agent infrastructure, data systems, experimentation, evaluation, and developer tooling while learning how to build reliable systems at scale.

What you'll do

• Build platforms and services that power machine learning, generative AI and agentic platform and product experiences across Roblox.
• Design, code, test, launch, and operate production features.
• Partner with teams across product, research, data, infrastructure, safety, creator, engine, discovery, and economy.
• 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.

What you'll need

• An undergraduate or graduate degree in computer science, or equivalent experience in engineering or 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.

Details

• Reports to an Engineering Manager within the Foundation AI organization.
• Based at headquarters in San Mateo, CA; roles based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).
• Annual base salary range: $153,120 — $196,750 USD; actual base pay depends on job-related factors and may fall outside this range.
• All full-time employees are eligible for equity compensation and benefits.
• For US-based roles only: the Company may not be able to employ candidates who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.