CareerPlan

Member of Technical Staff (Infrastructure Engineer, Training and Inference Systems)

LondonFull-time2026-05-28 → 2026-11-12
On-site · United Kingdom

Core

Build and maintain high-performance training and inference systems for frontier AI research, enabling large-scale distributed RL and recursive self-improving agents.

Role type

Senior IC infrastructure engineer (AI research systems)

Builds

Distributed job orchestration, data pipelines, evaluation frameworks, and hardened RL/post-training libraries for scientific domains.

Domain

Frontier AI research, recursive self-improvement, large-scale distributed reinforcement learning

Deliverable

production ML models

Required skills

Large-scale distributed systems, Python, PyTorch or JAX, LLM training/inference technologies (SGLang, vLLM, verl, Megatron, OpenRLHF), system architecture trade-offs

Preferred skills

Systems programming (Rust or C++), CUDA kernel development, building reliable research tools

Technologies

SGLang, vLLM, verl, Megatron, OpenRLHF, PyTorch, JAX, CUDA

Responsibilities

Contribute to end-to-end training and inference infrastructure; build systems for large-scale experiments; implement and harden RL libraries; close recursive loops for agent-driven training; collaborate with core research teams

Seniority

Senior, hands-on IC