RELX

Senior ML Ops Engineer

RELX
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4 days ago
Remote, United States or Philadelphia, PA, USASenior

Base Salary

$95k - $159k/yr

Responsibilities

  • Automate and orchestrate machine learning workflows across AWS, Azure, Databricks, and foundation model APIs.
  • Maintain and version model registries and artifact stores to support reproducibility and governance.
  • Develop and manage CI/CD for ML, including automated data validation, model testing, and deployment.
  • Build and scale machine learning pipelines using AWS SageMaker, MLflow, and Azure ML.
  • Design engineering components for RAG systems, including query interpretation, chunking, embeddings, hybrid retrieval, semantic search, prompt libraries, guardrails, and structured LLM output.
  • Develop ML pipelines using Elasticsearch, OpenSearch, Solr, vector databases, and graph databases.
  • Build evaluation pipelines for information retrieval metrics, LLM quality metrics, and A/B testing.
  • Optimize infrastructure costs through monitoring, scaling strategies, and efficient resource utilization.
  • Collaborate with subject-matter experts, product managers, data scientists, responsible AI experts, and operations engineers to deliver production data science solutions.

Requirements

  • Current experience in ML Engineering, MLOps platforms, and shipping ML, search, or GenAI systems to production.
  • Hands-on experience with major cloud platforms, including AWS, Azure, and/or Google Cloud.
  • Experience with search, vector, and graph technologies such as Elasticsearch, OpenSearch, Solr, and Neo4j.
  • Experience evaluating LLM models and understanding data science lifecycle activities such as feature engineering, model training, and evaluation metrics.
  • Familiarity with ML frameworks including PyTorch, TensorFlow, and PySpark.
  • Experience with large-scale data processing systems such as Spark.
  • Experience with statistical analysis, machine learning theory, and natural language processing.
  • Strong Python, Java, and/or Scala experience is a plus.
  • Background in health technology and/or medical content workflows is preferred.

Benefits

  • U.S. National Base Pay Range: $95,300 - $158,800, with geographic differentials in some locations and an annual incentive bonus.
  • Country-specific benefits are available based on work location.
  • The employer provides a fair and accessible hiring process with accommodation support.

Tech Stack

Apache SparkAWSAzureDatabricksElasticsearchGoogle CloudJavaMLflowNeo4jPythonPyTorchScalaTensorFlow

Categories

RELX

About RELX

1,001-5,000 employees
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