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Elsevier

Senior ML Ops Engineer

🇺🇸 Hybrid - Philadelphia, PA 🕑 Full-Time 💰 $95K - $159K 💻 Software Engineering 🗓️ February 9th, 2026
CI/CD PySpark Python

Edtech.com's Summary

Elsevier Inc. Company is hiring a Senior ML Ops Engineer. The role involves automating and orchestrating machine learning workflows on major cloud platforms, developing and managing CI/CD for ML, and designing ML pipelines for search, recommendation engines, and knowledge retrieval while ensuring content rights and confidentiality. The engineer will collaborate with subject-matter experts and operations engineers to translate business problems into scalable AI solutions.

Highlights
  • Automate ML workflows across AWS, Azure, Databricks, and foundation model APIs such as OpenAI.
  • Maintain model registries and artifact stores for reproducibility and governance.
  • Develop and manage CI/CD pipelines for ML, including automated validation, testing, and deployment.
  • Implement solutions using MLOps platforms like AWS SageMaker, MLflow, and Azure ML; scale custom SageMaker pipelines.
  • Design and implement GAR+RAG components, managing prompt libraries, guardrails, and structured outputs for LLMs.
  • Build ML pipelines utilizing Elasticsearch, OpenSearch, Solr, vector databases, and graph databases.
  • Build evaluation pipelines using offline IR metrics (NDCG, MAP, MRR), LLM quality metrics, and A/B testing.
  • Optimize infrastructure costs via monitoring and scaling strategies.
  • Qualifications include experience in ML engineering, MLOps, proficiency with Python, Java, or Scala, and hands-on experience with AWS, Azure, or Google Cloud.
  • Preferred qualifications include background in health technology or medical content workflows and familiarity with ML frameworks (PyTorch, TensorFlow, PySpark) and large-scale data processing (Spark).
  • U.S. National base pay range is $95,300 - $158,800 with location differentials; the job is eligible for an annual incentive bonus.
  • Works with Health platforms such as Clinical Key AI and Sherpath AI, targeting large medical and scholarly data landscapes.

Senior ML Ops Engineer Full Description

Are you a collaborative Machine Learning Ops Engineer looking to work for a mission driven global organization?
Are you looking to drive cutting edge products that have  a true societal impact?
About the team, this team that powers Elsevier's Health platforms: Clinical Key AI, Sherpath AI, and AI-driven automated clinical and content workflows. You will bridge Data Science and Engineering to turn experimental NLP/IR/GenAI models into secure, reliable, and scalable services. Our systems operate over one of the world's largest medical and scholarly landscapes.
About the role, as a Senior Machine Learning Engineer you'll work on AI-based features (GenAI, Agentic AI, RAG, etc.) search/ranking quality, and knowledge graph aware retrieval while enforcing content rights and editorial confidentiality.

Key Responsibilities
ML & LLM Engineering, Search and Recommendation Engines
  • Automate and orchestrate machine learning workflows across major cloud and AI platforms (AWS, Azure, Databricks, and foundation model APIs such as OpenAI).
  • Maintain and version model registries and artifact stores to ensure reproducibility and governance.
  • Develop and manage CI/CD for ML, including automated data validation, model testing, and deployment.
  • Implement ML Engineering solutions using popular MLOps platforms such as AWS SageMaker, MLflow, Azure ML.
  • Scale end-end custom Sagemaker pipelines.
  • Design and implement the engineering components of GAR+RAG systems (e.g., query interpretation and reflection, chunking, embeddings, hybrid retrieval, semantic search), manage prompt libraries, guardrails and structured output for LLMs hosted on Bedrock/SageMaker or self-hosted.
  • Design and implement ML pipelines that utilize Elasticsearch/OpenSearch/Solr, vector DBs, and graph DBs .
  • Build evaluation pipelines: offline IR metrics (NDCG, MAP, MRR), LLM quality metrics (faithfulness, grounding), and A/B testing.
  • Optimize infrastructure costs through monitoring, scaling strategies, and efficient resource utilization.
  • Stay current with the latest GAI research, NLP and RAG and apply the state-of-the-art in our experiments and systems.

Collaboration
  • Partner with Subject-Matter Experts, Product Managers, Data Scientists and Responsible AI experts to translate business problems into cutting edge data science solutions
  • Collaborate and interface with Operations Engineers who deploy and run production infrastructure.

Qualifications
  • Current experience in ML Engineering, MLOps platforms, shipping ML or search/GenAI systems to production.
  • Strong Python, Java, and/or Scala experience will be considered a plus.
  • Hands-on‑ experience with major cloud vendor solutions (AWS, Azure and/or Google)
  • Experience with Search/vector/graph technologies (e.g., Elasticsearch / OpenSearch / Solr / Neo4j).
  • Experience in evaluating LLM models.
  • A strong understanding of the Data Science Life Cycle including feature engineering, model training, and evaluation metrics.
  • Background in health technology and/or medical content workflows is preferred.
  • Familiarity with ML frameworks, e.g., PyTorch, TensorFlow, PySpark.
  • Experience with large-scale data processing systems, e.g., Spark.
  • Experience with statistical analysis, machine learning theory and natural language processing.

Elsevier 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 Maryland, the base pay range is $100,100 - $166,800.If performed in New Jersey, the base pay range is $112,574 - $179,826.This job is eligible for an annual incentive bonus.

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