Lead Machine Learning Engineer, Llm Infrastructure

Salesforce UK

United Kingdom
Base: $172,500 - $260,100 annually (select cities ...
Llm post-training infrastructure
Scalable ml pipelines
Distributed systems engineering
Own the infrastructure and engineering systems that support LLM post-training, large-scale evaluation, and model deployment

Job Summary

  • Own the infrastructure and engineering systems that support LLM post-training, large-scale evaluation, and model deployment.
  • Build scalable, reliable pipelines for training orchestration, rollout generation, reward and feedback pipelines, experiment management, and model iteration.
  • Work closely with research scientists, agent engineers, and platform teams to operationalize post-training and feedback-driven learning methods into robust, reusable systems.

Matching Summary

Own the infrastructure and engineering systems that support LLM post-training, large-scale evaluation, and model deployment.

Salary

Base: $172,500 - $260,100 annually (select cities $207,800 - $285,800); Bonus/Equity: Not specified; Benefits: Not specified

Skills & Requirements

Must-have

  • LLM post-training infrastructure
  • Scalable ML pipelines
  • Distributed systems engineering
  • GPU-based workloads
  • Python production systems
  • Cloud platforms (AWS, GCP)
  • Containerized environments (Docker, Kubernetes)

Nice-to-have

  • Agent-based learning systems
  • Simulation environments
  • Iterative model improvement
  • AI research collaboration
  • Cross-functional influence

Key Requirements

  • 5+ years software engineering/ML systems/distributed infrastructure
  • Experience building LLM post-training infrastructure
  • Experience with RLHF, preference optimization, reward modeling
  • Experience with research scientist collaboration
  • Experience with rollout systems, large-scale evaluation loops, or training data/feedback pipelines
  • Familiarity with distributed training frameworks
  • Familiarity with modern ML infrastructure stacks

Work Rights

Not specified

Tailored Resume

Cover Letter