Staff Front-End Network Engineer

About Nscale Nscale is building the engine of superintelligence — full-stack AI infrastructure powering the world’s most powerful systems, from ground to cloud.

Nscale

Nscale is the engine of superintelligence.

N

www.nscale.com

201-500 employees

Technology, Information and Internet

London

2024

Privately Held

83k LinkedIn followers

Raised $12.3B

• Leading technical direction and operational improvements for Nscale’s front-end AI infrastructure networks within your domain
• Designing, reviewing, and evolving large-scale Ethernet leaf-spine / Clos fabric architectures (Arista and Nokia platforms) to support growth, inference workloads, and storage requirements
• Serving as a senior escalation point for complex front-end network incidents and driving deep technical root cause analysis and remediation
• Driving cross-team initiatives to improve fabric reliability, performance consistency, observability, and operational maturity
• Defining and evolving engineering standards for hardware configuration, routing, congestion management, firmware lifecycle, automation, and change safety across Nvidia Cumulus, Arista EOS, and Nokia platforms
• Partnering with SRE, Compute Platform, Storage, and Network Architecture teams to influence end-to-end system design, including DCI and storage networking integration
• Mentoring senior engineers and contributing to the growth of technical excellence across the organization
• Delivering measurable improvements in uptime, latency consistency, capacity efficiency, and incident reduction for front-end services

Required

• 10–12+ years of experience in network engineering, with a strong focus on hyperscale data center, cloud, or AI infrastructure networking
• Deep hands-on experience with large-scale Ethernet data center fabrics (leaf-spine / Clos topologies)
• Strong production expertise with Nvidia (Cumulus), Arista EOS, and/or Nokia platforms at scale
• Solid understanding of data center routing and control planes (BGP, OSPF, ECMP, EVPN-VXLAN)
• Experience with long-haul circuits, DCI, and optical transport (dark fiber, carrier Ethernet, coherent optics, ZR/ZR+)
• Strong understanding of storage networking over Ethernet in large-scale environments
• Ability to debug and resolve complex cross-layer issues across hardware, optics, routing, and application layers
• Proven ability to lead technical initiatives across teams and influence outcomes without formal authority
• Strong systems thinking, balancing performance, reliability, scalability, and operational efficiency

Preferred

• Experience operating Arista, Nokia, or Nvidia networking platforms at hyperscale
• Familiarity with AI infrastructure network design patterns (inference, management, storage tiers)
• Exposure to DCI / long-haul optical or carrier network design and operations
• Strong automation experience (Python, Ansible, telemetry pipelines, validation frameworks)
• Experience contributing to infrastructure strategy or large-scale platform improvements

• At Nscale, you'll find a collaborative, supportive, and innovative environment where your contributions create real impact. We're building something extraordinary, and we want you at the core.
• Highly competitive package (base + equity) with annual reviews
• Opportunity to join a fast-growing AI infrastructure company and work on cutting-edge systems
• A progression path tailored to your growth, with opportunities to lead, innovate, and expand your technical scope
• Flexible benefits including medical, dental, vision, PTO, parental leave, and retirement plans