Principal Software Engineer (GPU Compute)

Location: Headquarters in San Mateo, California; office-based roles require onsite attendance Tuesday through Thursday, with optional presence on Monday and Friday.

Company

Roblox develops a platform for creating and experiencing 3D immersive digital experiences used by a global community of developers and creators.

What you will do

• Set the technical direction for GPU and AI accelerator capabilities across the Compute team.
• Own GPU host lifecycle management, including drivers, firmware, CUDA, health telemetry, and failure remediation.
• Architect GPU capacity exposure, scheduling, isolation, and Kubernetes integration for GPU and AI workloads.
• Improve GPU reliability and performance at fleet scale through detection, diagnosis, and automated repair.
• Evaluate new accelerators, networking topologies, and multi-node training and inference patterns.
• Establish tooling, standards, and APIs for safe and efficient GPU compute consumption across engineering teams.

Requirements

• 10+ years of experience building and operating large-scale distributed systems and infrastructure.
• Deep hands-on expertise in GPU host provisioning, driver and firmware lifecycle, GPU health, and production accelerator reliability.
• Experience operating GPU and AI workloads in production, including CUDA, GPU scheduling, and high-performance networking.
• Strong proficiency in Go or another well-structured programming language.
• Expertise with NVLink, InfiniBand, or RoCE and experience with multi-node workloads.
• Leadership experience as a technical anchor for complex GPU and compute problems.

Nice to have

• Experience with Kubernetes for GPU workloads.
• Familiarity with bare-metal systems, including firmware, BMC/IPMI/Redfish, and OS imaging.

Culture & Benefits

• Work on technical challenges involving GPU infrastructure at large scale.
• Collaborate across Kubernetes, Machine Bootstrap, Networking, and Cloud teams.
• Full-time employees are eligible for equity compensation and company benefits.
• Roblox provides reasonable accommodations during the recruiting process for qualifying disabilities or religious beliefs.

Hiring process

• Equal employment opportunity and non-discrimination principles apply throughout the recruiting process.
• For US-based roles, certain US visa categories may not be supported, and future H-1B sponsorship may not be available.