Lambda
Staff HPC Network Architect
Part remote, part office, you need to live within commuting distance of a named location.
Hybrid · San Jose Office (First St)
Employer listed it 9 days ago · Added 5 days ago
First listed 9 days ago and still open.
Salary
$284,000 to $420,000
Location
Hybrid · San Jose Office (First St)
Timezone
Not stated
Contract
Full-time
Experience
Lead
Category
Software
Published by the employer
Remote flexibility
Hybrid
This role is only partly remote, the employer expects time in the office around San Jose Office (First St), San Francisco Office (Fremont St), Hybrid, so you need to live within commuting distance.
What the employer says
- Source listing states candidate location: "San Jose Office (First St), San Francisco Office (Fremont St), Hybrid"
- Listing mentions "Hybrid" and 4 days per week in the office
What Nomaders makes of it
- Not suitable if you plan to move between countries
The quotes above are the employer's own words; the reading is ours. Always check the original listing and employment terms before working from another country.
About the role
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.
If you'd like to build the world's best AI cloud, join us.
*Note: This position requires presence in our San Jose, San Francisco, or Bellevue office location 4 days per week; Lambda’s designated work from home day is currently Tuesday.
What You’ll Do
Architect high-performance networking solutions that power cloud platforms, with a focus on ultra-low-latency and high-bandwidth connectivity.
Define the network topology and architectural patterns for large-scale GPU clusters, storage backends, and multi-tenant environments.
Evaluate, benchmark, and select next-generation network technologies (e.g., InfiniBand NDR/XDR, RoCE, 400G-1.6T Ethernet, Ultra Ethernet, ESUN, OCI, etc) to meet AI workload requirements.
Develop and maintain network architecture standards, reference designs, and scalability roadmaps for multi-site and hybrid environments.
Partner with compute and storage architects to ensure seamless end-to-end data flow and fault tolerance.
Guide network automation strategies and tooling to enable efficient provisioning, telemetry, and operational visibility.
Mentor engineers and cross-functional teams on advanced network concepts, troubleshooting, and architectural best practices.
You
Proven experience (7+ years) architecting high-performance data center networks, preferably for HPC, AI/ML, or large-scale cloud infrastructure.
Deep expertise with InfiniBand (HDR/NDR) and advanced Ethernet fabrics, including RoCE and RDMA protocols.
Strong understanding of data center switching architectures, congestion control (PFC, ECN), QoS, and network virtualization technologies such as VXLAN and EVPN.
Skilled in designing for low-latency and high-throughput data paths, including GPU-to-GPU and storage traffic optimization.
Expertise with BGP-based fabric design, including eBGP underlays, MP-BGP EVPN, ECMP, route policy, and convergence.
Experience with SDN, APIs, automation, and network telemetry.
Strong optical networking competency, including transceiver technologies, fiber types and topologies, link budgets, breakout architectures, and WDM.
Experience building resilient, fault-tolerant high-performance network architectures with redundancy, failover, and high availability.
Excellent communication and leadership skills, capable of influencing technical decisions across diverse teams.
Strong ownership and can do attitude, self-starter who feels comfortable working in ambiguity.
Nice to Have
Hands-on experience with AI workload profiling, collective communication patterns (e.g., NCCL, MPI), and network tuning for distributed training.
Requirements
The employer hasn't listed requirements separately, they're described in the role summary above and on the original listing.
Benefits
- ·Health, dental, and vision coverage for you and your dependents
- ·Wellness and commuter stipends for select roles
- ·401k Plan with 2% company match (USA employees)
- ·Flexible paid time off plan that we all actually use
- ·Equal Opportunity Employer
How to apply
- 1Check the flexibility label above, hybrid, matches where you plan to live and work.
- 2Tailor your CV to the role at Lambda, mentioning your remote working experience.
- 3Apply directly on the employer's careers page using the button below. Nomaders never handles your application.
Found 5d ago. Last checked 23 Sept. Always confirm the details on the original posting, salary and location can change after publication.
Listing sourced from Company boards.
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$284,000 to $420,000 · You'll be taken to the employer's careers page.