Senior Site Reliability Engineer - AI HPC Infra (Remote)

Applied Methods Ltd; San Francisco (CA); Hybrid; USD 180,000 - 260,000; Full time

Benefits offered by this job

Health, dental, and vision coverage

401k Plan with company match

Flexible paid time off

Wellness stipend

Commuter stipend

Job summary

Lambda is seeking a Senior Site Reliability Engineer to join our AI cloud infrastructure in San Francisco. You will design and operate monitoring for cluster health, deploy HPC clusters remotely, and automate lifecycle tasks using code.

You will troubleshoot complex networking, GPU, and fabric issues and participate in on-call rotations to drive reliability. The role emphasizes collaboration with SWE teams, strong Linux expertise, and practical experience with automation tools.

Qualifications

• 7+ years of experience in Site Reliability Engineering, HPC Engineering, DevOps, or a similar role.
• Strong understanding of modern AI infrastructure, from GPU architectures to hardware performance optimization.
• Experience with Linux-based distributed systems and high-performance networking.
• Proficiency in Python and Go; ability to collaborate with SWE teams to improve tooling.

Responsibilities

• Build and operate monitoring and alerting for cluster health, including fabric, GPU, power/thermal, and job-level signals.
• Remotely deploy and configure large-scale HPC clusters for AI workloads using automation.
• Automate cluster lifecycle (OS, firmware, drivers, networking) as code with Ansible and Terraform.
• Create runbooks and automated remediations for common cluster failures for safe execution by Support teams.
• Troubleshoot cluster issues across InfiniBand/RoCE, NCCL, GPU-direct, fabric, and switching; coordinate with on-site teams.
• Lead on-call rotations and incident response for cluster-level problems.
• Develop and maintain standard operating procedures and feed requirements to other teams for stability and efficiency.

Skills

Site Reliability Engineering

HPC Engineering

DevOps

Linux

Python

Go

Monitoring

GPU Architectures

InfiniBand RoCE

NCCL

Tools

Prometheus

Grafana

ClickHouse

Ansible

Terraform

Docker

Kubernetes

NVIDIA GPUs

Job description

Lambda is seeking a Senior Site Reliability Engineer to join our AI cloud infrastructure in San Francisco. You will design and operate monitoring for cluster health, deploy HPC clusters remotely, and automate lifecycle tasks using code.

You will troubleshoot complex networking, GPU, and fabric issues and participate in on-call rotations to drive reliability. The role emphasizes collaboration with SWE teams, strong Linux expertise, and practical experience with automation tools.