Member of Technical Staff (AI Infrastructure Engineer)

Perplexity

AI EngineermidLondon, England, UKonsitefulltimeSoftware DevelopmentKubernetesSlurmPythonC++PyTorchAWSGPU clustersdistributed trainingposted 05 Sep
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We are looking for an AI Infra engineer to join our growing team. We work with Kubernetes, Slurm, Python, C++, PyTorch, and primarily on AWS. As an AI Infrastructure Engineer, you will be partnering closely with our Inference and Research teams to build, deploy, and optimize our large-scale AI training and inference clusters. Responsibilities * Design, deploy, and maintain scalable Kubernetes clusters for AI model inference and training workloads * Manage and optimize Slurm-based HPC environments for distributed training of large language models * Develop robust APIs and orchestration systems for both training pipelines and inference services * Implement resource scheduling and job management systems across heterogeneous compute environments * Benchmark system performance, diagnose bottlenecks, and implement improvements across both training and inference infrastructure * Build monitoring, alerting, and observability solutions tailored to ML workloads running on Kubernetes and Slurm * Respond swiftly to system outages and collaborate across teams to maintain high uptime for critical training runs and inference services * Optimize cluster utilization and implement autoscaling strategies for dynamic workload demands Qualifications * Strong expertise in Kubernetes administration, including custom resource definitions, operators, and cluster management * Hands-on experience with Slurm workload management, including job scheduling, resource allocation, and cluster optimization * Experience with deploying and managing distributed training systems at scale * Deep understanding of container orchestration and distributed systems architecture * High level familiarity with LLM architecture and training processes (Multi-Head Attention, Multi/Grouped-Query, distributed training strategies) * Experience managing GPU clusters and optimizing compute resource utilization Required Skills * Expert-level Kubernetes administration and YAML configuration management * Proficiency with Slurm job scheduling, resource management, and cluster configuration * Python and C++ programming with focus on systems and infrastructure automation * Hands-on experience with ML frameworks such as PyTorch in distributed training contexts * Strong understanding of networking, storage, and compute resource management for ML workloads * Experience developing APIs and managing distributed systems for both batch and real-time workloads * Solid debugging and monitoring skills with expertise in observability tools for containerized environments Preferred Skills * Experience with Kubernetes operators and custom controllers for ML workloads * Advanced Slurm administration including multi-cluster federation and advanced scheduling policies * Familiarity with GPU cluster management and CUDA optimization * Experience with other ML frameworks like TensorFlow or distributed training libraries * Background in HPC environments, parallel computing, and high-performance networking * Knowledge of infrastructure as code (Terraform, Ansible) and GitOps practices * Experience with container registries, image optimization, and multi-stage builds for ML workloads Required Experience * Demonstrated experience managing large-scale Kubernetes deployments in production environments * Proven track record with Slurm cluster administration and HPC workload management * Previous roles in SRE, DevOps, or Platform Engineering with focus on ML infrastructure * Experience supporting both long-running training jobs and high-availability inference services * Ideally, 3-5 years of relevant experience in ML systems deployment with specific focus on cluster orchestration and resource management