{"schemaVersion":"jobsearcher.job.v1","id":"03e266fffe7beae8d19ccaf9","url":"https://jobsearcher.com/jobs/03e266fffe7beae8d19ccaf9","canonicalUrl":"https://jobsearcher.com/jobs/03e266fffe7beae8d19ccaf9","title":"Principal Network Engineer","description":"Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers. Our customers range from AI researchers to enterprises and hyperscalers. Lambda's mission is to make compute as ubiquitous as electricity and give everyone the power of superintelligence. One person, one GPU.\n\nIf you'd like to build the world's best AI cloud, join us.\n\n*Note: This position requires presence in our Bellevue or San Francisco office location 4 days per week; Lambda’s designated work from home day is currently Tuesday.\n\nYou will be joining a team of highly capable software, hardware and network engineers building one of the largest AI training and inference networks in the world. You'll collaborate with people across Lambda to deliver novel and inventive solutions that meet the highest standards for safety, security, availability and performance - at the lowest possible cost for our customers. You will experience an inclusive and inventive culture that welcomes bold ideas and empowers you to own them from concept to production.\n\nOur vision is bold and is not an incremental exercise. We will continually re-evaluate and reinvent our current fabric topology, routing design and the automation underneath all of it, while operating the existing network flawlessly for all customer workloads.\n\nThis role will report to the VP of Cloud and AI Networking, working alongside a highly capable and passionate team of engineers.\n\nIf you'd like to join a great team of customer obsessed engineers building the world's best AI cloud, come join us.\n\nWhat You’ll Do\n\nOwn the multi-year technical strategy for Lambda's network — fabric, backbone and edge — and everything in between.\n\nSet the technical direction and standards other engineers design, build and operate against.\n\nOwn high-level technical relationships with enterprise customers, guiding mission-critical projects\n\nAdept at influencing without authority across teams, and applying high quality technical judgment under ambiguity.\n\nResolve any technical ambiguity that spans organisational boundaries — between network, hardware, platform and product teams\n\nGo deep when the hardest problems demand it — into the packet path, the routing table, the vendor's firmware, the code. You are hands-on.\n\nDrive the technical work end to end: shape the vision, define high- and low-level design, then work alongside the teams delivering it\n\nRaise the bar of the engineers around you through mentorship, design review and hiring\n\nOperate what you build. You'll take part in day 2 operations and the on-call rotation, because the fastest feedback loop between design and reality runs through the pager\n\nServe as the senior technical voice with our largest customers on mission-critical projects, and carry what you learn there back into Lambda's roadmap\n\nIdentify new opportunities to delight our customers, like novel new ways to improve availability or performance or even developing new products.\n\nYou\n\n8+ years in relevant domains like cloud computing, systems engineering, and large-scale network infrastructure\n\nExperience of design, build and operation of production large scale Data Center or Cloud networks\n\nExperience of design, build and operation of software defined networking services and how to build distributed systems to the highest level of availability\n\nHave led through the implementation of large production-scale networking projects\n\nExperience building distributed network systems and services at scale\n\nHave experience with cloud providers networking (such as AWS, GCP, OCI)\n\nDeep expertise in datacenter, backbone and internet protocols and technology\n\nExperience building and optimizing networks for the best possible customer experience (lowest latency, fastest convergence, most available networks)\n\nAre comfortable on the Linux command line, and have an understanding of the Linux networking stack and internals\n\nProduction automation skills in Python and a configuration management tool, working with network APIs and source control\n\nProduction experience with multiple network gear vendors (Arista, Juniper, Cisco, Cumulus/SONiC, Opengear)\n\nExperience with Networking Monitoring stacks (Datadog, Clickhouse, Grafana, Prometheus, gNMI, OTel)\n\nExcellent communicator both written and verbal. You leverage high quality written artifacts to inform high quality decision making and get approval on problems and solution opportunities\n\nNice to Have\n\nHands-on experience with HPC/AI networking: RoCEv2 and/or InfiniBand (congestion control, virtual lanes, partitions), GPUDirect RDMA, and the behaviour of collective communication at scale\n\nExperience with the network characteristics of large distributed training workloads\n\nExperience building distributed network systems and services at scale\n\nExperience with public cloud provider networking (AWS, GCP, OCI) and automating network configuration within it, using tools like Terraform, Ansible or Salt\n\nExperience with software defined networking\n\nFamiliarity with modern network monitoring and telemetry — Prometheus, Grafana, gNMI, OpenTelemetry, or equivalents\n\nExperience with source-of-truth and IPAM tooling such as Netbox\n\nExperience with DWDM and SD-WAN\n\nUnderstanding of data center power, space and cooling trade-offs and their impact on topology choices\n\nExperience with virtualization technology and with load balancers\n\nSalary Range Information\n\nThe annual salary range for this position has been set based on market data and other factors. However, a salary higher or lower than this range may be appropriate for a candidate whose qualifications differ meaningfully from those listed in the job description.\n\nAbout Lambda\n\nFounded in 2012, with 500+ employees, and growing fast\n\nOur investors notably include TWG Global, US Innovative Technology Fund (USIT), Andra Capital, SGW, Andrej Karpathy, ARK Invest, Fincadia Advisors, G Squared, In-Q-Tel (IQT), KHK & Partners, NVIDIA, Pegatron, Supermicro, Wistron, Wiwynn, Gradient Ventures, Mercato Partners, SVB, 1517, and Crescent Cove\n\nWe have research papers accepted at top machine learning and graphics conferences, including NeurIPS, ICCV, SIGGRAPH, and TOG\n\nOur values are publicly available: https://lambda.ai/careers\n\nWe offer generous cash & equity compensation\n\nHealth, dental, and vision coverage for you and your dependents\n\nWellness and commuter stipends for select roles\n\n401k Plan with 2% company match (USA employees)\n\nFlexible paid time off plan that we all actually use\n\nEqual Opportunity Employer\n\nLambda is an Equal Opportunity employer. Applicants are considered without regard to race, color, religion, creed, national origin, age, sex, gender, marital status, sexual orientation and identity, genetic information, veteran status, citizenship, or any other factors prohibited by local, state, or federal law.\n\nCompensation Range: $372K - $550K","company":"Lambda","rawCompany":"lambda","city":"Millbrae","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-09-14T04:49:31.181Z","occupations":[{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1241.00","title":"Computer Network Architects","slug":"computer-network-architects"},{"code":"15-1244.00","title":"Network and Computer Systems Administrators","slug":"network-and-computer-systems-administrators"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"518210","title":"Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services","slug":"computing-infrastructure-providers-data-processing-web-hosting-and-related-services"},{"code":"541513","title":"Computer Facilities Management Services","slug":"computer-facilities-management-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Principal Network Engineer","description":"Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers. Our customers range from AI researchers to enterprises and hyperscalers. Lambda's mission is to make compute as ubiquitous as electricity and give everyone the power of superintelligence. One person, one GPU.\n\nIf you'd like to build the world's best AI cloud, join us.\n\n*Note: This position requires presence in our Bellevue or San Francisco office location 4 days per week; Lambda’s designated work from home day is currently Tuesday.\n\nYou will be joining a team of highly capable software, hardware and network engineers building one of the largest AI training and inference networks in the world. You'll collaborate with people across Lambda to deliver novel and inventive solutions that meet the highest standards for safety, security, availability and performance - at the lowest possible cost for our customers. You will experience an inclusive and inventive culture that welcomes bold ideas and empowers you to own them from concept to production.\n\nOur vision is bold and is not an incremental exercise. We will continually re-evaluate and reinvent our current fabric topology, routing design and the automation underneath all of it, while operating the existing network flawlessly for all customer workloads.\n\nThis role will report to the VP of Cloud and AI Networking, working alongside a highly capable and passionate team of engineers.\n\nIf you'd like to join a great team of customer obsessed engineers building the world's best AI cloud, come join us.\n\nWhat You’ll Do\n\nOwn the multi-year technical strategy for Lambda's network — fabric, backbone and edge — and everything in between.\n\nSet the technical direction and standards other engineers design, build and operate against.\n\nOwn high-level technical relationships with enterprise customers, guiding mission-critical projects\n\nAdept at influencing without authority across teams, and applying high quality technical judgment under ambiguity.\n\nResolve any technical ambiguity that spans organisational boundaries — between network, hardware, platform and product teams\n\nGo deep when the hardest problems demand it — into the packet path, the routing table, the vendor's firmware, the code. You are hands-on.\n\nDrive the technical work end to end: shape the vision, define high- and low-level design, then work alongside the teams delivering it\n\nRaise the bar of the engineers around you through mentorship, design review and hiring\n\nOperate what you build. You'll take part in day 2 operations and the on-call rotation, because the fastest feedback loop between design and reality runs through the pager\n\nServe as the senior technical voice with our largest customers on mission-critical projects, and carry what you learn there back into Lambda's roadmap\n\nIdentify new opportunities to delight our customers, like novel new ways to improve availability or performance or even developing new products.\n\nYou\n\n8+ years in relevant domains like cloud computing, systems engineering, and large-scale network infrastructure\n\nExperience of design, build and operation of production large scale Data Center or Cloud networks\n\nExperience of design, build and operation of software defined networking services and how to build distributed systems to the highest level of availability\n\nHave led through the implementation of large production-scale networking projects\n\nExperience building distributed network systems and services at scale\n\nHave experience with cloud providers networking (such as AWS, GCP, OCI)\n\nDeep expertise in datacenter, backbone and internet protocols and technology\n\nExperience building and optimizing networks for the best possible customer experience (lowest latency, fastest convergence, most available networks)\n\nAre comfortable on the Linux command line, and have an understanding of the Linux networking stack and internals\n\nProduction automation skills in Python and a configuration management tool, working with network APIs and source control\n\nProduction experience with multiple network gear vendors (Arista, Juniper, Cisco, Cumulus/SONiC, Opengear)\n\nExperience with Networking Monitoring stacks (Datadog, Clickhouse, Grafana, Prometheus, gNMI, OTel)\n\nExcellent communicator both written and verbal. You leverage high quality written artifacts to inform high quality decision making and get approval on problems and solution opportunities\n\nNice to Have\n\nHands-on experience with HPC/AI networking: RoCEv2 and/or InfiniBand (congestion control, virtual lanes, partitions), GPUDirect RDMA, and the behaviour of collective communication at scale\n\nExperience with the network characteristics of large distributed training workloads\n\nExperience building distributed network systems and services at scale\n\nExperience with public cloud provider networking (AWS, GCP, OCI) and automating network configuration within it, using tools like Terraform, Ansible or Salt\n\nExperience with software defined networking\n\nFamiliarity with modern network monitoring and telemetry — Prometheus, Grafana, gNMI, OpenTelemetry, or equivalents\n\nExperience with source-of-truth and IPAM tooling such as Netbox\n\nExperience with DWDM and SD-WAN\n\nUnderstanding of data center power, space and cooling trade-offs and their impact on topology choices\n\nExperience with virtualization technology and with load balancers\n\nSalary Range Information\n\nThe annual salary range for this position has been set based on market data and other factors. However, a salary higher or lower than this range may be appropriate for a candidate whose qualifications differ meaningfully from those listed in the job description.\n\nAbout Lambda\n\nFounded in 2012, with 500+ employees, and growing fast\n\nOur investors notably include TWG Global, US Innovative Technology Fund (USIT), Andra Capital, SGW, Andrej Karpathy, ARK Invest, Fincadia Advisors, G Squared, In-Q-Tel (IQT), KHK & Partners, NVIDIA, Pegatron, Supermicro, Wistron, Wiwynn, Gradient Ventures, Mercato Partners, SVB, 1517, and Crescent Cove\n\nWe have research papers accepted at top machine learning and graphics conferences, including NeurIPS, ICCV, SIGGRAPH, and TOG\n\nOur values are publicly available: https://lambda.ai/careers\n\nWe offer generous cash & equity compensation\n\nHealth, dental, and vision coverage for you and your dependents\n\nWellness and commuter stipends for select roles\n\n401k Plan with 2% company match (USA employees)\n\nFlexible paid time off plan that we all actually use\n\nEqual Opportunity Employer\n\nLambda is an Equal Opportunity employer. Applicants are considered without regard to race, color, religion, creed, national origin, age, sex, gender, marital status, sexual orientation and identity, genetic information, veteran status, citizenship, or any other factors prohibited by local, state, or federal law.\n\nCompensation Range: $372K - $550K","datePosted":"2026-09-14T04:49:31.181Z","dateModified":"2026-09-14T04:49:31.181Z","hiringOrganization":{"@type":"Organization","name":"Lambda","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Millbrae","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"03e266fffe7beae8d19ccaf9"},"url":"https://jobsearcher.com/jobs/03e266fffe7beae8d19ccaf9"}}