Senior Front-End Network Engineer, AI Infrastructure Operations

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

• Owning the operational health, configuration consistency, and performance
• tuning of large-scale Ethernet front-end fabrics (leaf-spine / Clos)
• supporting AI inference, management, and storage workloads
• Leading the diagnosis and resolution of complex network incidents (P0/P1),
• spanning optics, routing, switching hardware, long-haul circuits, and storage
• connectivity layers
• Driving blameless postmortems and implementing preventative fixes to improve
• long-term fabric stability and availability
• Partnering with SREs to define requirements for automation and tooling, and
• contributing to network provisioning, validation, and monitoring systems
• Collaborating with Network Architecture and Engineering teams to validate
• designs and enforce standards for routing, congestion management, firmware
• baselines, and change safety
• Monitoring fabric utilisation and performance, identifying bottlenecks, and
• tuning for predictable latency and throughput on front-end networks
• Acting as a subject matter expert for cross-functional teams on high-speed
• Ethernet networking, long-haul/DCI circuits, and storage network integration
• Participating in an on-call rotation supporting mission-critical,
• customer-facing infrastructure

Required

• operating large-scale Ethernet data centre or cloud networks
• Deep, hands-on operational experience with high-speed Ethernet fabrics in
• hyperscale or production environments
• Strong expertise with Arista (EOS) and/or Nokia (7220 IXR / 7250 IXR / 7750
• SR series) platforms
• Solid understanding of modern data centre networking, including BGP, OSPF,
• ECMP, EVPN-VXLAN, and leaf-spine architectures
• Proven experience with long-haul circuits and DCI (dark fiber, carrier
• Ethernet, coherent optics)
• Experience with storage networking over Ethernet and shared storage
• connectivity
• Proven ability to troubleshoot complex network issues using Linux-based
• tooling and fabric diagnostics
• Proficiency in Python, Go, or shell scripting for automation, data analysis,
• or configuration management
• Experience working in a 24/7 operational environment with a strong focus on
• reliability and toil reduction

Preferred

• Deep familiarity with front-end network patterns for large AI clusters
• (inference traffic, management networks, and storage integration)
• Experience operating large-scale DCI / long-haul optical or carrier networks
• Strong background in network observability and telemetry systems (streaming
• telemetry, sFlow, Prometheus, Grafana, etc.)
• Prior experience in automation-first network operations or building internal
• tooling

• At Nscale, you'll find a collaborative, supportive, and innovative environment
• where your contributions spark real impact. We're building something
• extraordinary, and we want you at the core.
• Highly competitive package (base + equity) with reviews every 12 months . 🚀
• Join the fastest-growing tech startup , your chance to push boundaries,
• collaborate with brilliant minds, and make your mark on cutting-edge AI. ✨
• Expect a dynamic progression plan tailored to your ambitions. Grow by trying
• new things, leading, challenging the status quo, and owning your impact,
• always with our full support.
• Nscale does not accept unsolicited candidate submissions from recruitment
• agencies.