Senior Network Engineer - Data Center Networking
San Mateo, CA · San Mateo · USD 243,290-295,250 / year · 6+ years experience · Full-time · Onsite · Posted Oct 6, 2026
At a glance
- Experience
- 6+ years experience
- Employment
- Full-time
- Workplace
- Onsite
- Location
- San Mateo, CA · San Mateo
- Salary
- USD 243,290-295,250 / year · Base salary
- Visa sponsorship
- Visa sponsorship not offered
About the role
- The Data Center Network Engineering team at Roblox is responsible for the design, deployment, and operation of large-scale data center networks. This role focuses on server-layer connectivity, intra and inter-DC connectivity, and scaling GPU clusters to support AI training and inference.
Responsibilities
- Drive the design, deployment, and operations of large-scale data center networks.
- Design, qualify, and validate new technologies and hardware for scalable solutions.
- Coordinate data center builds and projects with multiple teams.
- Conduct weekly cross-team calls to manage project coordination.
- Collaborate with Network Reliability Systems, Data Center Ops, Capacity Planning, Supply Chain, and Compute/ML teams.
- Contribute to automation and telemetry to improve efficiency, reliability, and visibility.
Requirements
- 6+ years of expertise designing and deploying large-scale data center fabrics (CLOS).
- 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 network protocols (TCP/IP, UDP, DHCP, DNS).
- Hands-on experience in IPv4 and IPv6.
Preferred qualifications
- QoS
- IS-IS
- MPLS
- RSVP-TE
- DWDM
- commercial NAT
- open-source hardware and software
Benefits
- Equity compensation
- Standard company benefits
Workplace
- Onsite Tuesday, Wednesday, and Thursday
Skills
- BGP
- TCP/IP
- UDP
- DHCP
- DNS
- IPv4
- IPv6
- 400G
- 800G
- CLOS
- GPU Clusters
