Sr AI Engineer (RAG Specialist with Strong Python Skills)
LexisNexis1 hour ago
Base Salary
$105k - $175k/yr
Responsibilities
- Test, evaluate, implement, optimize, and fine-tune AI and RAG models for performance, scalability, and cost savings.
- Develop prompt engineering and prompt testing approaches.
- Design, build, and deploy agentic AI systems supporting autonomous planning, tool use, and multi-step task execution.
- Architect and deploy AI/ML and RAG solutions on AWS using services such as SageMaker, Bedrock, Lambda, and S3.
- Write clean, efficient, and maintainable Python code.
- Perform data preprocessing, feature engineering, and model evaluation.
- Collaborate with cross-functional teams to integrate AI solutions into existing systems.
- Troubleshoot and debug AI models and applications in a monorepo environment.
- Research current AI and machine learning advances and document models, processes, and workflows.
Requirements
- Proven experience as an AI Engineer or in a similar role.
- Strong proficiency in Python programming.
- In-depth knowledge of Retrieval-Augmented Generation models and proven prompt engineering experience.
- Experience with machine learning frameworks and libraries such as TensorFlow and PyTorch.
- Proficiency in data preprocessing and feature engineering techniques.
- Hands-on experience building agentic AI applications, including tool or function calling, multi-agent orchestration, and autonomous workflow design.
- Demonstrated experience with AWS cloud services such as SageMaker, Bedrock, Lambda, EC2, and S3 for AI/ML development and deployment.
- Strong problem-solving, attention to detail, communication, and teamwork abilities.
- Preferred experience with LangGraph, LangChain, AutoGen, CrewAI, AWS Bedrock Agents, Model Context Protocol, Azure, Google Cloud, production AI model deployment, and version control systems such as Git.
- AWS certification such as AWS Certified Machine Learning – Specialty or AWS Certified Solutions Architect is preferred.
- Knowledge of natural language processing techniques is preferred.
Benefits
- On-site/hybrid work arrangement in Raleigh, North Carolina.
- Flexible working hours.
- Wellbeing initiatives, shared parental leave, study assistance, and sabbaticals.
- Country-specific benefits and an annual incentive bonus.
- Fair and accessible hiring accommodations are available.
Categories
About LexisNexis
LexisNexis is a leading innovator of private, secure, and authoritative Legal AI solutions that help legal and business professionals draft full documents with ease, make informed decisions faster, and deliver outstanding work and improved outcomes, all powered by trusted content. LexisNexis Legal & Professional serves customers in more than 150 countries with 11,800 employees worldwide, and is part of RELX, a global provider of information-based analytics and decision tools for professional and business customers.