Principal Backbone & Edge Network Engineer - Roblox

As a Principal Network Engineer, you will work cross-functionally to plan, architect, and scale Roblox’s global production network to support rapid user growth. Stationed at our headquarters in San Mateo, CA, you will be responsible for the end-to-end engineering and architectural vision of Roblox’s Backbone and Edge networks. You will validate next-generation networking technologies, optimize global routing, collaborate with tooling teams to automate network operations, and ensure a low-latency experience for millions of concurrent users globally., * Backbone & Edge Architecture: Serve as the Principal Engineer driving the overall design, expansion, and operational framework for Roblox’s global backbone and edge infrastructure.

• Technology Qualification: Lead the evaluation, hardware qualification, and deployment of next-generation networking gear and protocols, ensuring new tech is deployable and operable at scale.
• Automation & Telemetry: Partner with Network Tooling teams to automate routing workflows, enhance telemetry collection, expand observability frameworks, and refine alerting thresholds.
• Network Performance & Routing: Optimize global traffic engineering, routing policies, and peering strategies across multi-vendor environments.
• Operations & On-Call: Participate in a 24/7 escalation on-call rotation to maintain the availability and health of Roblox’s global network footprint., * Workplace Model: Hybrid model requiring in-office presence at San Mateo HQ on Tuesdays, Wednesdays, and Thursdays (Mondays/Fridays optional).
• Visa Sponsorship Note: Roblox currently may not be able to support future H-1B sponsorship or candidates holding certain U.S. visa categories for this specific role.

• 8+ years of experience designing, deploying, and operating large-scale production networks.
• 5+ years of specific experience architecting and managing high-capacity Backbone and Edge networks.

Technical Competencies & Protocols

• Advanced expertise configuring and troubleshooting core routing and switching protocols (BGP, IS-IS, MPLS, RSVP-TE).
• Deep working knowledge of fundamental network protocols (TCP/UDP, DHCP, DNS) and comprehensive deployment experience with IPv4 and IPv6.
• Proven hands-on experience in multi-vendor hardware environments (e.g., Arista, Juniper, Cisco).
• Proven ability to lead cross-functional infrastructure initiatives across software, operations, and data center engineering teams., * Experience programming in languages such as Python, Go, or C/C++ for network automation, API integrations, and script development.
• Background in automated network testing, software-defined networking (SDN), or streaming telemetry architectures.

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect within 3D immersive digital experiences. Roblox’s mission is to connect a billion people with optimism and civility across any device worldwide.