Principal ML Engineer: Scalable LLM & AI Systems Architect

RELX Inc. Company; North Carolina; On-site; USD 136,000 - 253,000; Full time

Job summary

RELX Inc. is seeking a Principal Machine Learning Engineer to design, build, and operate scalable AI/ML systems and agentic architectures for next-generation legal research and analytics products.

You will work on LLM infrastructure, retrieval-augmented generation pipelines, and autonomous agent frameworks serving global data. The role emphasizes distributed systems engineering, enterprise-grade AI, and governance aligned with Responsible AI principles.

Qualifications

• 10+ years of Machine Learning/Software Engineer experience.
• Master’s degree or bachelor’s degree, computer science highly desirable.
• Strong software engineering background with system design and AI feature/product architecture for large user bases and unstructured data.
• Experience with ML deployment to production.

Responsibilities

• Provide architectural direction and code-level guidance for ML systems.
• Establish engineering best practices for ML system design, testing, and deployment.

Skills

Machine Learning

Software Engineering

System Design

Production ML Deployment

Education

Master's/Bachelor's in CS

Tools

LLM Infrastructure

RAG Pipelines

Agent Frameworks

Job description

RELX Inc. is seeking a Principal Machine Learning Engineer to design, build, and operate scalable AI/ML systems and agentic architectures for next-generation legal research and analytics products.

You will work on LLM infrastructure, retrieval-augmented generation pipelines, and autonomous agent frameworks serving global data. The role emphasizes distributed systems engineering, enterprise-grade AI, and governance aligned with Responsible AI principles.