Principal Networking Engineer — AI Infra & Systems Lead

Academic Key; United Kingdom; On-site; GBP 120,000 - 180,000; Full time

Benefits offered by this job

25 days annual leave

Private medical insurance (Bupa)

Cycle to Work Scheme

Gympass access

Job summary

Radiant is seeking a Principal Software Engineer - Networking in the United Kingdom. You will guide the technical direction for networking software powering AI infrastructure, driving architecture, coding, and standards across teams.

You will own performance, isolation, and reliability for AI training and inference workloads, and collaborate with Product, SRE, storage, security, and customers to deliver robust, scalable network solutions.

Qualifications

• Extensive experience building and operating large-scale network software.
• Track record of technical leadership at staff/principal level across multiple teams.
• Hands-on engineering in Go or similar systems languages.

Responsibilities

• Set the technical vision and architecture for Radiant's networking software.
• Lead design and implementation of the control plane for cluster fabrics and Managed Networks.
• Own network performance, isolation, and reliability for AI workloads.

Skills

Network software

Technical leadership

Go

Networking domain

Architectural judgement

Systems thinking

Ownership

Communication

Tools

NVIDIA networking

SONiC

Cumulus

Job description

Radiant is seeking a Principal Software Engineer - Networking in the United Kingdom. You will guide the technical direction for networking software powering AI infrastructure, driving architecture, coding, and standards across teams.

You will own performance, isolation, and reliability for AI training and inference workloads, and collaborate with Product, SRE, storage, security, and customers to deliver robust, scalable network solutions.