Principal Software Engineer-Agentic AI

RELX Group plc
St. Louis, United States of America
4 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English

Job location

St. Louis, United States of America

Tech stack

API
Artificial Intelligence
Automated Storage and Retrieval Systems
Fault Tolerance
Interoperability
Software Engineering
Software Systems
Systems Architecture
Systems Integration
Enterprise Software Applications
Data Ingestion
Retrieval-Augmented Generation
System Availability
Large Language Models
Prompt Engineering
AI Platforms
Kubernetes
Low Latency
Virtual Agents

Job description

Are you a collaborative Agentic AI Engineer looking to work for a mission driven global organization ?

About the team: The Elsevier Healthcare Education (EHE) Data and Content Software Engineering team is responsible for building and maintaining scalable content ingestion pipelines that power critical health education products. Our work enables flagship platforms such as Sherpath and HESI, ensuring high-quality, reliable, and timely delivery of educational content to learners and educators worldwide. We focus on developing robust, efficient systems that transform and manage complex data, supporting innovation across Elsevier's health education ecosystem.https://evolve.elsevier.com/education, About the Role: We are seeking a Principal Software Engineer to join our team and play a key role in designing and delivering scalable, high-impact software solutions. In this role, you will lead the development of advanced content ingestion and processing systems, driving architectural decisions and engineering best practices across the team. You will collaborate closely with cross-functional partners, mentor engineers, and contribute to building resilient, high-performance platforms that support mission-critical products. This position offers the opportunity to influence technical strategy, champion innovation, and shape the future of content engineering within Elsevier Health Education., + Lead the design and development of agentic AI systemsArchitect and deliver autonomous workflows, multi-step reasoning agents, and AI copilots that solve complex business problems across the organization.

  • Define and implement LLM-powered architecturesDesign scalable solutions leveraging large language models, orchestration frameworks (e.g., LangChain, OpenAI APIs), and modular service patterns to enable reusable AI capabilities.

  • Build and optimize tool-augmented agentsDevelop agents that effectively utilize function calling, retrieval-augmented generation (RAG), memory systems, and planning/execution loops to perform reliable, context-aware tasks.

  • Establish best practices for prompt engineering and evaluationCreate standardized approaches for prompt design, testing, benchmarking, and continuous improvement to ensure high-quality outputs in production environments.

  • Implement production-grade guardrails and safety mechanismsDesign and enforce controls for hallucination mitigation, output validation, policy compliance, and safe execution of AI-driven workflows.

  • Drive AI system performance and reliabilityOptimize latency, throughput, and cost efficiency of AI systems while ensuring high availability, observability, and fault tolerance across agent workflows.

  • Design and manage retrieval systemsArchitect solutions using embeddings, vector databases, and hybrid search techniques to enable accurate, scalable knowledge retrieval.

  • Integrate AI capabilities into enterprise platformsEmbed AI services into existing products, APIs, and developer workflows, ensuring seamless interoperability with enterprise systems and data sources.

  • Lead technical strategy and cross-functional alignmentPartner with product, data, and engineering leaders to define AI roadmaps, prioritize initiatives, and align solutions with business objectives.

  • Champion responsible AI practicesEnsure systems adhere to standards for fairness, bias mitigation, transparency, and governance, while meeting regulatory and organizational compliance requirements.

  • Mentor and elevate engineering teamsProvide technical leadership, guide architectural decisions, and mentor engineers in building scalable, maintainable AI systems.

  • Continuously evaluate emerging technologiesStay at the forefront of advancements in AI/ML, agent frameworks, and tooling, and drive adoption of innovations that create competitive advantage.

Requirements

Agentic AI & Advanced Tooling:* Experience designing, building, or integrating agentic AI systems (e.g., autonomous workflows, multi-step reasoning agents, AI copilots).* Hands-on experience with LLMs and orchestration frameworks (e.g., LangChain, OpenAI APIs, or similar).* Ability to design tool-augmented agents (function calling, retrieval-augmented generation, memory systems, planning/execution loops).* Experience with prompt engineering, evaluation, and guardrails for production-grade AI systems.* Understanding of AI system architecture, including latency, cost optimization, observability, and reliability of agent workflows.* Familiarity with vector databases, embeddings, and retrieval systems.* Experience integrating AI capabilities into enterprise systems and developer workflows.* Knowledge of responsible AI practices, including safety, bias mitigation, and governance.

About the company

Elsevier employs 10,000 people worldwide, including over 2,500 technologists. We have supported the work of our research and health partners for more than 140 years. Growing from our roots in publishing, we offer knowledge and valuable analytics that help our users make breakthroughs and drive societal progress . Digital solutions such as ScienceDirect (https://beta.elsevier.com/products/sciencedirect) , Scopus (https://beta.elsevier.com/products/scopus) , SciVal (https://beta.elsevier.com/products/scival) , ClinicalKey (https://beta.elsevier.com/products/clinicalkey) and Sherpath (https://beta.elsevier.com/products/sherpath) support strategic research management (https://beta.elsevier.com/solutions/research-analytics-management-evaluation) , R&D performance (https://beta.elsevier.com/industry) , clinical decision support (https://beta.elsevier.com/solutions/clinical-decision-support) , medical education (https://beta.elsevier.com/solutions/medical-education) , and nursing education (https://beta.elsevier.com/solutions/nursing-education) . Researchers and healthcare professionals rely on over 2,800 journals, including The Lancet (https://www.thelancet.com/) and Cell ; 46,000+ eBook titles; and iconic reference works, such as Gray's Anatomy. With the Elsevier Foundation and our external Inclusion & Diversity Advisory Board (https://beta.elsevier.com/about/inclusion-diversity-and-equity/board) , we work in partnership with diverse stakeholders to advance inclusion and diversity (https://beta.elsevier.com/about/inclusion-diversity-and-equity) in science, research and healthcare in developing countries and around the world. Elsevier is part of RELX (https://www.relx.com/) a global provider of information-based analytics and decision tools for professional and business customers., RELX is a global provider of information-based analytics and decision tools for professional and business customers, enabling them to make better decisions, get better results and be more productive. Our purpose is to benefit society by developing products that help researchers advance scientific knowledge; doctors and nurses improve the lives of patients; lawyers promote the rule of law and achieve justice and fair results for their clients; businesses and governments prevent fraud; consumers access financial services and get fair prices on insurance; and customers learn about markets and complete transactions. Our purpose guides our actions beyond the products that we develop. It defines us as a company. Every day across RELX our employees are inspired to undertake initiatives that make unique contributions to society and the communities in which we operate.

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