Senior AI Systems Engineer II - LLM & RAG

Relx Plc; Oklahoma City, Northern (OK, KY); Hybrid; USD 95,000 - 159,000; Full time

Benefits offered by this job

Health Benefits

401(k) with match

Employee Share Purchase Plan

Wellbeing & wellness platform

Job summary

Relx Plc in Oklahoma City, OK is seeking a Senior Software Engineer II to design, build, and deploy production AI systems, including agentic workflows and RAG pipelines. You will work with stakeholders to scope use cases, define success metrics, and translate complex problems into measurable AI solutions.

The role requires 5+ years of software engineering, with 2+ years shipping LLM-based systems. Proficiency in TypeScript/Node.js and Python, plus experience with Azure OpenAI, Docker, and

Qualifications

• 5+ years of software engineering experience, including 2+ years building and shipping LLM-based or ML-based systems to production
• Expert proficiency in TypeScript/Node.js and/or Python; working knowledge of C#/.NET is a plus
• Hands-on experience with LLM platforms and APIs (Azure OpenAI or equivalent), including prompt design, tool/function calling, structured outputs, and model selection tradeoffs
• Experience building RAG pipelines: chunking, embedding, hybrid retrieval, reranking, and grounding/citation
• Strong SQL proficiency and understanding of relational and vector data storage (SQL Server, PostgreSQL, Elasticsearch/vector stores)
• Working experience with AWS and Azure, containerized deployment (Docker, Kubernetes), observability, and cost attribution

Responsibilities

• Design, build, and deploy production AI systems including agentic workflows, RAG services, and extraction pipelines across multiple business units
• Interface with business stakeholders and technical team members to scope AI use cases, define success metrics, and finalize requirements
• Write and review detailed technical specifications and architecture documents for complex AI system components
• Build and maintain evaluation harnesses; establish accuracy, latency, and cost baselines and monitor them in production
• Implement responsible AI practices: data handling, PII controls, hallucination mitigation, auditability, and human review where required
• Own cost and performance of LLM workloads, including model selection, caching, and usage attribution
• Build and maintain CI/CD pipelines and deployment automation for AI services across AWS and Azure environments
• Operate in Agile development environments while collaborating with key stakeholders across engineering, product, and business functions
• Mentor less-senior engineers on AI system design, evaluation methodology, and production readiness

Skills

TypeScript/Node.js

Python

LLM platforms

SQL

Cloud/Docker/Kubernetes

Education

BS in Engineering/Computer Science

Tools

Azure OpenAI

Docker

Kubernetes

Job description

Relx Plc in Oklahoma City, OK is seeking a Senior Software Engineer II to design, build, and deploy production AI systems, including agentic workflows and RAG pipelines. You will work with stakeholders to scope use cases, define success metrics, and translate complex problems into measurable AI solutions.

The role requires 5+ years of software engineering, with 2+ years shipping LLM-based systems. Proficiency in TypeScript/Node.js and Python, plus experience with Azure OpenAI, Docker, and