Senior Software Engineer - Retrieval-Augmented ...

Job title: Senior Software Engineer II - Retrieval-Augmented Generation (RAG) SystemAbout the role, we are seeking an experienced engineer to work with a team to build and support a healthcare centered production-scale RAG system that combines document retrieval with response generation to deliver accurate, context-aware answers. This engineer we be expected to design, implement, and operate end-to-end RAG pipelines- LLM interaction, API creation, and high-performance, secure delivery of knowledge-grounded capabilities. You will collaborate with data engineers, platform teams, and product partners to ship reliable, scalable, and observable systems.About the team; This collaborative team is entrusted with building the Next Generation Health Solutions through the utilization of cutting-edge technology.Role and responsibilitiesArchitecting, implementing, testing, and operating end-to-end RAG workflows:Ingesting and normalizing documents from diverse sourcesGenerating and managing embeddings; index and query vector databasesRetrieve relevant passages, apply reranking or fusion strategies, and feed prompts to LLMsBuilding scalable, low-latency services and APIs (Python preferred; other languages acceptable) and ensure production-grade reliability (monitoring, tracing, alerting)Integrating with vector databases and embedding pipelines and optimize for latency, throughput, and costDesigning and implementing ML Ops workflows: model/version management, experiments, feature stores, CI/CD for ML-enabled services, rollback plansDeveloping robust data pipelines and governance around ingestion, provenance, quality checks, and access controlsCollaborating with data engineers to improve retrieval quality (embedding strategies, reranking, cross-encoder models, prompt engineering) and implement evaluation metrics (precision/recall, MRR, QA accuracy, user-centric metrics)Implementing monitoring and observability for RAG components (latency, success rate, cache hit rate, retrieval quality, data drift)Ensuring security, privacy, and compliance (authentication, authorization, data masking, PII handling, audit logging)Required qualifications5+ years of professional software engineering experience designing and delivering production systemsStrong programming skills (Python required; NodeJs a plus)Deep understanding of retrieval-augmented or application-scale NLP systems and practical experience building RAG-like pipelinesHands-on experience with ML workflow tooling and MLOps concepts (model serving, versioning, experiments, feature stores, reproducibility)Proficiency with cloud infrastructure and modern software practices (AWS/GCP/Azure; Docker; Kubernetes; CI/CD)Strong problem-solving skills, excellent communication, and ability to work with cross-functional teamsFamiliarity with data governance, privacy, and security best practicesPreferred qualificationsExperience with agentic workflow tools (LangGraph) and familiarity with prompt engineering for LLMsExposure to working with and evaluating different LLMsKnowledge of evaluation methodologies for retrieval and QA systems and the ability to set up A/B tests and dashboardsExperience with data processing frameworks (SQL, Pandas, Spark) and working with large-scale data pipelinesBackground in performance optimization for low-latency AI services (MLflow)Experience with monitoring and logging via New Relic, K9s, Portkey, etcExperience with minimizing token usage and cost optimizationComfortable with design and implementation of security controls for data-intensive AI systemsElsevier is a renowned global information analytics company that primarily focuses on providing scientific, technical, and medical (STM) research content, tools, and services. It is one of the largest publishers of academic journals and scholarly literature in the world.Elsevier operates in various domains, including science, technology, medicine, social sciences, and more. They publish a vast number of peer-reviewed journals covering a wide range of disciplines. These journals act as platforms for researchers and academics to share their findings and contribute to the advancement of knowledge in their respective fields.U.S. National Base Pay Range: $95,300 - $158,800. Geographic differentials may apply in some locations to better reflect local market rates.If performed in New Jersey, the base pay range is $107,646 - $171,954.This job is eligible for an annual incentive bonus.We know your well-being and happiness are key to a long and successful career. We are delighted to offer country specific benefits. Click here to access benefits specific to your location.We are committed to providing a fair and accessible hiring process. If you have a disability or other need that requires accommodation or adjustment, please let us know by completing our Applicant Request Support Form or please contact 1-855-833-5120.Criminals may pose as recruiters asking for money or personal information. We never request money or banking details from job applicants. Learn more about spotting and avoiding scams herePlease read our Candidate Privacy Policy.We are an equal opportunity employer: qualified applicants are considered for and treated during employment without regard to race, color, creed, religion, sex, national origin, citizenship status, disability status, protected veteran status, age, marital status, sexual orientation, gender identity, genetic information, or any other characteristic protected by law.USA Job Seekers:EEO Know Your Rights.

Created: 2026-04-02