Principal ML Infra Engineer – Large-Scale Physics Models

Linuxconfig; Greater London; Hybrid; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Equity options

Enhanced pension contribution

Private medical insurance

25 days annual leave

Job summary

PhysicsX is recruiting a Principal ML Infrastructure Engineer to scale and operate the research infrastructure for training and serving large physics models. You will collaborate with ML engineers and researchers to ensure reliable, high-performance training at scale, while shaping architecture and data pipelines across the stack.

Based in London with a hybrid model, you will influence infrastructure decisions, own platform reliability, and partner with the broader engineering group to deliver

Responsibilities

• Design and operate distributed training infrastructure for neural operator architectures on large GPU platforms.
• Optimize training pipelines for throughput, fault tolerance, and cost efficiency.
• Build and maintain experiment tracking and observability for researchers.

Job description

PhysicsX is recruiting a Principal ML Infrastructure Engineer to scale and operate the research infrastructure for training and serving large physics models. You will collaborate with ML engineers and researchers to ensure reliable, high-performance training at scale, while shaping architecture and data pipelines across the stack.

Based in London with a hybrid model, you will influence infrastructure decisions, own platform reliability, and partner with the broader engineering group to deliver