Roblox
Senior Network Engineer - Data Center Networking
$243K–$295K
San Mateo, CA, United States · Senior · Full-time · Posted Oct 6, 2026
- Experience
- 6+ years of expertise designing and deploying large-scale data center fabrics (CLOS).
- Visa sponsorship
- For US-based roles, the company may be unable to employ candidates with work authorization related to certain U.S. visa categories or support future H-1B sponsorship at this time.
About the job
Designs, deploys, and operates Roblox’s large-scale data center network, including high-performance fabrics and networking for GPU training and inference clusters.
What you'll do
- Design, deploy, and operate data center networks; qualify and validate network technologies and hardware.
- Coordinate data center builds across teams and contribute to network automation and telemetry.
- Participate in the 24x7 global network on-call rotation.
What they ask for
- Expertise designing and deploying large-scale CLOS data center fabrics.
- Experience with GPU clusters or AI/ML networking.
- Proficiency deploying and managing 400G and 800G hardware; skilled in configuring and troubleshooting large-scale BGP deployments.
- Strong knowledge of TCP/IP, UDP, DHCP, and DNS, with hands-on IPv4 and IPv6 experience.
Nice to have
- QoS, IS-IS, MPLS, RSVP-TE, DWDM, or commercial NAT.
- Open-source hardware and software.
Pay
$243,290 — $295,250 USD annual base salary
Tools
CLOS, 400G, 800G, BGP, TCP/IP, UDP, DHCP, DNS
AI focus
Networking for GPU clusters supporting AI training and inference workloads.
Model-written summary · the original posting is authoritative