Software Engineer - Reliability

Luma’s mission is to build multimodal AI to expand human imagination and capabilities. We believe that multimodality is critical for intelligence. This requires a massive, reliable, and performant GPU infrastructure that pushes the boundaries of scale. Our SRE team is the foundation of our research and product velocity, responsible for the thousands of NVIDIA and AMD GPUs across multiple providers that power our work.

Where You Come In

We are looking for a hands‑on, first‑principles engineer who is fluent in Linux, comfortable operating close to the metal, and capable of architecting systems for the next generation of AI infrastructure.

You will build, maintain, and scale Luma’s infrastructure across on‑prem and multi‑vendor clouds (AWS & OCI), serving as the bridge between hardware vendors, cloud providers, and our research teams.

What You’ll Do

• Architect for Reliability & Scale : Participate in critical re‑architecture sessions to redesign our systems for higher efficiency and scale. You won't just maintain existing clusters; you will help define how our next‑generation infrastructure operates.
• Own Multi‑Cloud GPU Clusters : Take end‑to‑end ownership of our production clusters for training and inference across AWS and OCI, ensuring high availability and peak performance.
• Drive Security & Compliance : Assist in achieving and maintaining security certifications (SOC 2 Type 1 & 2, ISO standards) by implementing robust infrastructure security practices in a fast‑moving AI startup environment.
• Deep Linux Performance Tuning : Use your mastery of Linux systems to troubleshoot and optimise performance at the OS and kernel level.
• Build Robust Automation : Write high‑quality tools and automation in Python, Go, or Bash to manage, monitor, and heal our infrastructure without relying on heavy operational toil.
• Debug Complex Hardware / Software Failures : Serve as the final escalation point for the most challenging GPU, networking (InfiniBand / RDMA), and system‑level issues, often collaborating directly with hardware vendors like NVIDIA.

Who You Are

What Sets You Apart (Bonus Points)

Compensation

The base pay range for this role is $170,000 – $360,000 per year.

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