Staff ML Platform Engineer — Remote

Reddit; United Kingdom; Remote; GBP 120,000 - 180,000; Full time

Benefits offered by this job

Flexible vacation

Comprehensive benefits

Pension match

Private medical

Remote work from UK

Job summary

Reddit is seeking a senior ML Platform Engineer to accelerate model training and inference across large-scale systems. You will design scalable infrastructure, build profiling tools, and optimize GPU usage while collaborating with researchers and product teams.

The role emphasizes performance engineering, distributed systems expertise, and cost-conscious infrastructure decisions in a flexible, remote-friendly environment across the UK.

Qualifications

• BS, MS, or PhD in Computer Science or a related field.
• 5+ years of software engineering experience.
• Strong proficiency in Python
• Proficiency in at least one systems language (Go, C++, Rust, or Java) preferred.
• Experience building distributed systems at scale.
• Experience with machine learning infrastructure, training systems, or model serving platforms.
• Deep understanding of performance engineering and systems optimization.
• Strong debugging and profiling skills.

Responsibilities

• Design and build systems that improve the efficiency of ML training and inference workloads.
• Develop tooling that helps ML engineers debug, profile, optimize, and monitor model performance.
• Improve GPU and general resource utilization through scheduling, resource management, caching, and workload optimization.
• Partner with ML researchers and product teams to identify bottlenecks and drive performance improvements.
• Build benchmarking frameworks and performance dashboards for training and serving systems.
• Optimize distributed training infrastructure, data pipelines, and model serving architectures.
• Lead cross-functional initiatives that improve the productivity of Reddit ML engineers.
• Drive technical strategy for ML platform scalability, reliability, and cost efficiency.

Skills

Python

Systems programming

Distributed systems

Performance engineering

Debugging & profiling

Education

BS/MS/PhD in Computer Science or related

Tools

PyTorch Distributed

Ray

TensorFlow

Spark

Job description

Reddit is seeking a senior ML Platform Engineer to accelerate model training and inference across large-scale systems. You will design scalable infrastructure, build profiling tools, and optimize GPU usage while collaborating with researchers and product teams.

The role emphasizes performance engineering, distributed systems expertise, and cost-conscious infrastructure decisions in a flexible, remote-friendly environment across the UK.