Senior Network Engineer (Data Center Networking)

Location: San Mateo, California, United States; hybrid office schedule with onsite presence Tuesday, Wednesday, and Thursday

Salary: $243,290–$295,250 USD annual base pay

Company

Roblox builds tools and platform infrastructure for immersive digital experiences created by a global community of developers and creators.

What you will do

• Design, deploy, and operate a large-scale data center network, including server-layer and intra- and inter-data-center connectivity.
• Build High-Performance Networking fabrics, deploy 400G and 800G networking, and scale GPU clusters for AI training and inference.
• Design, qualify, and validate new networking technologies and hardware.
• Coordinate data center builds and projects with Network Reliability Systems, Data Center Operations, Capacity Planning, Supply Chain, and Compute/ML teams.
• Contribute to network automation and telemetry that improve efficiency, reliability, and visibility.

Requirements

• 6+ years of experience designing and deploying large-scale CLOS data center fabrics.
• Experience deploying and managing 400G and 800G networking hardware.
• Strong skills configuring and troubleshooting large-scale BGP deployments.
• Knowledge of TCP/IP, UDP, DHCP, and DNS, with hands-on IPv4 and IPv6 experience.
• For the San Mateo office role, onsite presence is required Tuesday through Thursday.
• The role may not support future H-1B sponsorship and may be unavailable to candidates whose United States work authorization depends on certain U.S. visa categories.

Nice to have

• Experience with QoS, IS-IS, MPLS, RSVP-TE, DWDM, commercial NAT, or open-source networking hardware and software.

Culture & Benefits

• Full-time employees are eligible for equity compensation and company benefits.
• Optional office presence is available on Monday and Friday.
• Roblox provides equal employment opportunities and reasonable accommodations during the recruiting process.