Senior Software Engineer
Elsevier | Built In
RemoteRemote OKFull-time$180k – $280k / year
About this role
Senior Software Engineer - Retrieval-Augmented Generation (RAG) - Elsevier | Built In
Elsevier
https://builtin.com/company/elsevier
Senior Software Engineer - Retrieval-Augmented Generation (RAG)
Sorry, this job was removed at 10:19 p.m. (UTC) on Monday, Jun 01, 2026
4 Locations
In-Office or Remote
95K-172K Annually
Artificial Intelligence • Healthtech • Information Technology • Other • Analytics
The Role
Job title: Senior Software Engineer II – Retrieval-Augmented Generation (RAG) System
About 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 responsibilities
Architecting, implementing, testing, and operating end-to-end RAG workflows:
Ingesting and normalizing documents from diverse sources
Generating and managing embeddings; index and query vector databasesRetrieve relevant passages, apply reranking or fusion strategies, and feed prompts to LLMs
Building 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 cost
Designing and implementing ML Ops workflows: model/version management, experiments, feature stores, CI/CD for ML-enabled services, rollback plans
Developing rob