Note: The job is a remote job and is open to candidates in USA. Luma's mission is to build unified general intelligence that can generate, understand, and operate in the physical world, with a focus on multimodal intelligence and vision. The Senior Site Reliability Engineer will own and scale GPU infrastructure across on-premises and multi-cloud environments, ensuring reliable and performant training and inference clusters. The role involves Linux and kernel-level performance tuning, infrastructure automation, complex systems troubleshooting, re-architecture, and security compliance.
Responsibilities
- Take end-to-end ownership of production GPU clusters for training and inference across AWS and OCI, keeping them highly available and performant
- Join critical re-architecture sessions to redesign systems for higher efficiency and scale
- Tune Linux performance deeply, at the OS and kernel level
- Build automation in Python, Go, or Bash to manage, monitor, and self-heal infrastructure without heavy toil
- Serve as the final escalation for the hardest GPU, networking (InfiniBand/RDMA), and system failures, working with vendors like NVIDIA
- Help achieve and maintain security certifications (SOC 2 Type 1 & 2, ISO) with strong infrastructure security practices
Skills
- 5+ years as an SRE, production, or infrastructure engineer in a fast-paced, large-scale environment
- Deep, hands-on Linux expertise, containerized systems, and low-level performance debugging
- Working experience with Terraform, Airflow, and Ray
- Strong experience with AWS or OCI
- Practical experience with high-performance networking (InfiniBand, RDMA, or RoCE)
- Working knowledge of security best practices and compliance frameworks like SOC 2 and ISO
- Comfort in a less-structured, fast-paced environment
- Deep expertise with GPU tooling for NVIDIA and AMD (DCGM, ROCm)
- Experience managing large-scale GPU clusters for AI/ML training or inference
- Familiarity with Kubernetes or orchestration frameworks like Ray
- Deep expertise in data pipelines and infrastructure
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