Designs, develops, and operates large-scale software-defined networking for NVIDIA AI Cloud environments. Responsibilities include building OVS/OVN control and data plane software, Kubernetes networking services, observability systems, CI/CD pipelines, GitOps infrastructure, and production reliability tooling. The role requires expertise in C, Go, distributed systems, cloud networking, Kubernetes CNIs, infrastructure automation, secure service development, and datacenter networking.
We are looking for a Principal System Software Engineer, Software Defined Networking to design, build, and operate highly performant and scalable SDN solutions for NVIDIA's AI Clouds hosting GPU-accelerated workloads — including hyperscale multi-node training, inference, cloud gaming, and cloud functions. This role spans the full lifecycle of our SDN stack — from designing and developing new control and data plane software to ensuring operational excellence in production through reliability engineering, CI/CD, observability, and incident response.
What you'll be doing:
- Design and develop next-generation multi-tenant cloud SDN control and data plane software (OVS, OVN, OpenFlow)
- Build Infrastructure-as-a-Service virtual network orchestration and services using gRPC and REST to support tenant workload security and performance SLAs for BMaaS, VMaaS, and Kubernetes
- Drive upstream contributions to OVN-Kubernetes and related open-source projects
- Develop software for network observability — monitoring, telemetry, intelligent metering, and performance analysis
- Operate and support OVS-OVN based SDN solutions in large-scale NVIDIA AI Cloud environments
- Own end-to-end observability for the SDN stack — build and maintain monitoring, alerting, distributed tracing, and dashboarding to ensure real-time insight into network health, performance, and tenant SLAs
- Design, enhance, and maintain CI/CD pipelines (GitLab) across Linux host networking, OVS, OVN, and Kubernetes CNIs
- Implement GitOps approaches or related experience for secure, seamless integration with cloud infrastructure
- Collaborate with SRE, DevOps, and network engineering teams on production readiness and operational tooling
What we need to see:
- BS/MS in Computer Science or related technical field, or a comparable blend of education and relevant experience
- 15+ years of proven experience in software development for large-scale distributed environments
- Expert-level knowledge of OVN, OVS, OpenFlow, and modern network protocols
- Strong programming skills in C and Go; advanced scripting in Bash and Python
- Deep knowledge of Kubernetes, practical experience deploying and supporting CNIs (OVN-Kubernetes)
- Hands-on experience with Infrastructure-as-Code and deployment tools (Ansible, Terraform, ArgoCD, Flux)
- Experience designing and operating complex, multi-stage CI/CD pipelines
- Hands-on experience developing secure, high-performance services using gRPC and REST with TLS and strong authentication
- Strong knowledge of datacenter routing, switching, and Linux host/VM networking
Ways to stand out from the crowd:
- Contributions to open-source projects (especially OVS, OVN, OVN-Kubernetes, or other Kubernetes networking projects)
- Experience with hardware acceleration (GPU, DPU or equivalent experience) for networking
- Practical experience with major cloud providers (AWS, Azure, GCP) and hybrid/multi-cloud deployments
- SRE/DevOps top-level expertise — on-call, incident management, operations focused on service reliability targets, production ownership
- Experience with observability platforms and tools (Prometheus, Grafana, Jaeger, OpenTelemetry, ELK)
NVIDIA London, England Office
13th Floor One Angel Court, London, United Kingdom, EC2R 7HJ
Similar Jobs
Artificial Intelligence • Cloud • Information Technology • Sales • Security • Software • Cybersecurity
Architect and operate scalable cloud and virtualized security demonstration platforms for global sales engineering teams. Automate realistic threat scenarios, self-service lab tooling, product integrations, and deployment workflows. Lead technical readiness for conferences and evaluations, resolve infrastructure incidents, enforce security governance, and coordinate multi-quarter initiatives across engineering, product, information security, and go-to-market teams.
Top Skills:
AWSAzureBashCi/CdCloudFormationGCPLinuxPowershellPythonRapid7 Command PlatformTerraformUnixWindows Server
Artificial Intelligence • Fintech • Hardware • Information Technology • Sales • Software • Transportation
Own the full sales cycle for mid-market UK customers operating 50–174 trucks, from prospecting and discovery through negotiation and closing. Generate outbound leads, conduct demos and trials, meet revenue quotas, forecast accurately, and collaborate with sales development, engineering, customer success, and professional services teams. The hybrid London role requires office attendance three days weekly and customer-site travel up to three times monthly.
Top Skills:
SaaS
.png){kind=logo}
AdTech • Cloud • Digital Media • Information Technology • News + Entertainment • App development
Supports the Director of Partner Marketing in promoting film and television titles, meeting client needs, developing revenue-driving ideas, coordinating meetings and trackers, managing competing deliverables, assisting with copywriting, and overseeing creative asset workflows. The intern will gain experience in relationship management, prioritization, software use, and collaboration across international teams in a major studio environment.
Top Skills:
Adobe PhotoshopExcelMicrosoft Powerpoint
What you need to know about the London Tech Scene
London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.
