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Nebius

Runs GPU clouds for AI training and deployment

Machine Learning Infrastructure Engineer

Applied Machine LearningConfirmed live in the last 24 hours
Full-timeNo salary listed

About the Job

Requirements

  • A profound understanding of the theoretical foundations of machine learning.
  • A deep understanding of performance aspects of large neural network training and inference, including data, tensor, context, and expert parallelism; offloading; custom kernels; hardware features; attention optimizations; and dynamic batching.
  • Deep experience with modern deep learning frameworks, including PyTorch, JAX, Megatron-LM, and TensorRT-LLM.
  • A good understanding of the GPU stack, including CUDA, NCCL, drivers, and relevant libraries.
  • Familiarity with containerized environments such as Docker and Kubernetes.
  • Strong communication skills and the ability to work independently.
  • Applicants must be authorized to work in the country in which they apply and provide proof of employment eligibility as a condition of hire.

Responsibilities

  • Work closely with hardware and development teams to profile and analyze GPU performance at the system and kernel level.
  • Evaluate and compare GPU performance across different platforms, architectures, and software stacks such as CUDA and ROCm.
  • Debug and optimize machine learning workloads to run efficiently on GPU hardware, identifying and resolving performance bottlenecks.
  • Perform acceptance testing for new GPU clusters, ensuring hardware and software meet performance, stability, and compatibility requirements for AI workloads.
  • Perform experiments across diverse GPU system configurations to assess the impact of varying interconnect strategies and system-level optimizations on performance and scalability.
  • Develop tools and dashboards to visualize performance metrics, bottlenecks, and trends.
  • Contribute to internal tooling, frameworks, and best practices.

Desired Qualifications

  • Familiarity with modern large language model inference frameworks such as vLLM, SGLang, and TensorRT.
  • Experience with Python and performance profiling tools such as Nsight, nvprof, and perf.
  • Familiarity with cloud machine learning platforms such as AWS, GCP, and Azure ML.
  • Contributions to open-source machine learning benchmarking tools.

About the Company

Nebius

Runs GPU clouds for AI training and deployment

Nebius runs an AI cloud for developers, researchers, and enterprises that train models and put them into production. Its AI Cloud combines GPU computing, storage, networking, and managed services, while Token Factory runs models through an API so teams do not manage the underlying servers. Customers rent computing and storage at usage rates or reserve capacity, choosing resources that fit short experiments or sustained production workloads. Beyond the cloud, the group owns Avride, which develops autonomous vehicles and delivery robots, and TripleTen, which teaches technical skills for people changing careers. The publicly listed group is headquartered in Amsterdam, Netherlands.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Amsterdam, Netherlands
Founded
1997

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