{"id":3467619,"url":"https://alion.io/job/nvidia-principal-engineer-software-defined-networking","title":"Principal Engineer, Software Defined Networking","company":{"id":6,"name":"NVIDIA","domain":"nvidia.com","url":"https://alion.io/company/nvidia","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":81,"open_postings":820,"ghost_share":0.024,"stale_share":0.685,"repost_share":0.046,"time_to_fill_p50_days":36,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":129000,"max_usd":260000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":54},"experience_years_min":15,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"ArgoCD","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Bash","optional":false},{"name":"CI/CD","optional":false},{"name":"GCP","optional":false},{"name":"GitLab","optional":false},{"name":"GitOps","optional":false},{"name":"Grafana","optional":false},{"name":"gRPC","optional":false},{"name":"Incident Management","optional":false},{"name":"Jaeger","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"Terraform","optional":false}],"status":"live","first_seen_at":"2026-10-29T15:44:46Z","employer_posted_date":"2026-10-29","last_verified_at":"2026-10-29T18:26:55Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"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.\nWhat you'll be doing:\nDesign and develop next-generation multi-tenant cloud SDN control and data plane software (OVS, OVN, OpenFlow)\nBuild 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\nDrive upstream contributions to OVN-Kubernetes and related open-source projects\nDevelop software for network observability - monitoring, telemetry, intelligent metering, and performance analysis\nOperate and support OVS-OVN based SDN solutions in large-scale NVIDIA AI Cloud environments\nOwn 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\nDesign, enhance, and maintain CI/CD pipelines (GitLab) across Linux host networking, OVS, OVN, and Kubernetes CNIs\nImplement GitOps approaches or related experience for secure, seamless integration with cloud infrastructure\nCollaborate with SRE, DevOps, and network engineering teams on production readiness and operational tooling\nWhat we need to see:\nBS/MS in Computer Science or related technical field, or a comparable blend of education and relevant experience\n15+ years of proven experience in software development for large-scale distributed environments\nExpert-level knowledge of OVN, OVS, OpenFlow, and modern network protocols\nStrong programming skills in C and Go; 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