MLOps Engineer, LLM Systems (Serving, GPU Kernels, Profiling)

Weekday AI
UK
4 days ago
Apply on www.adzuna.co.uk
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Role details

Contract type
Permanent contract
Employment type
Part-time (≤ 32 hours)
Experience level
Experienced
Experience required
2 years minimum
Compensation
£104,416.0
Working hours
Regular working hours

Tech stack

Training Data Artificial Intelligence Profiling Nvidia CUDA Software Debugging Distributed Systems Machine Learning Pytorch Large Language Models Machine Learning Operations TensorRT

Job description

Join a leading AI lab’s cutting-edge GenAI team and help build foundational AI models from the ground up. We’re seeking MLOps Engineers with hands-on experience in large language model infrastructure across any of four areas: GPU kernel programming, performance profiling and trace analysis, debugging accelerated and distributed workloads, and high-throughput inference serving. This role involves AI model training and evaluation work, including writing and assessing MLOps and ML systems tasks and solutions to generate high-quality training data for frontier AI systems., * Design challenging, domain-relevant tasks across four areas, GPU kernels, performance profiling, debugging, and inference serving, and write accurate, well-structured solutions to them.

  • Guide research and engineering teams to close knowledge gaps and improve AI model performance on ML systems, training infrastructure, and framework-level topics.
  • Evaluate MLOps and ML systems tasks and solutions, and provide clear, written technical feedback that stands up to reviewer scrutiny.
  • Develop guidelines and detailed rubrics or evaluation frameworks covering kernel-level optimization, profiler output interpretation, distributed systems reasoning, and serving throughput and latency trade-offs.
  • Collaborate with other subject matter experts to keep training data consistent and accurate.

Requirements

  • 2+ years of hands-on professional experience in ML systems, ML infrastructure, model serving, or GPU and accelerator performance engineering. This is a hands-on systems role rather than an applied modelling or data science one.
  • Practical experience in at least one of the following, with more than one a strong plus: writing or optimizing custom GPU kernels (CUDA, Triton, Pallas); performance profiling and trace analysis (Kineto, torch.profiler, Nsight, XLA or JAX profiler); debugging distributed or accelerator-bound workloads; serving large language models at scale (vLLM, SGLang, TensorRT-LLM, Ray Serve, KV cache, paged attention, continuous batching).
  • Working production experience with JAX and/or PyTorch. Framework-level depth is a strong plus: custom operators, distributed training (FSDP, DDP, DeepSpeed, Megatron), or compiler and graph-level work.
  • Familiarity with modern accelerators such as A100, H100, B200 or TPU, and the ability to reason about throughput, latency and memory trade-offs.
  • Demonstrable career progression.
  • Ability to engage reliably for at least 40 hours/week during weekdays.
  • Strong written communication skills and the ability to explain complex technical decisions clearly.

Apply for this position

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Apply on www.adzuna.co.uk
Prepare application

Good distractions

Talks and stories from around this role — technically off-topic, practically not.

5:28 min

Defining MLOps and its role in production systems

Hauke Brammer · World Congress 2023

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Profiling native execution calls with async-profiler

Gonzalo Ortiz Jaureguizar Gonzalo Ortiz Jaureguizar · World Congress 2026 Europe

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Essential phases in building and refining language models

Anshul Jindal Anshul Jindal +1 · World Congress 2025

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Preventing remote code execution in PyTorch models

Balázs Kiss · World Congress 2023

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Core libraries driving inference engines and multi-GPU networking

Adolf Hohl Adolf Hohl · World Congress 2024

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Defining core roles and responsibilities in MLOps teams

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