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Capital One

Machine Learning Engineer 4, Python, AWS, SQL, GenAI

Capital One

. Design, build, and/or deliver ML models and components solving real-world business problems in collaboration with Product and Data Science teams .

Posted 9/25/2026full-timeUnited StatesMid-LevelSenior💰 $179,400 - $245,600 per yearWebsite

Tech Stack

Tools & technologies
AWSAzureCloudDistributed SystemsGoogle Cloud PlatformJavaKubernetesNumpyPandasPythonPyTorchRayScalaScikit-LearnSparkTensorflowC++Go

About the role

Key responsibilities & impact
  • Design, build, and/or deliver ML models and components solving real-world business problems in collaboration with Product and Data Science teams
  • Inform ML infrastructure decisions using knowledge of modeling techniques, data and feature selection, training, hyperparameter tuning, dimensionality, bias/variance, and validation
  • Write and test application code, develop and validate ML models, and automate tests and deployment
  • Collaborate in a cross-functional Agile team to create and enhance software enabling big data and ML applications
  • Retrain, maintain, and monitor models in production
  • Leverage or build cloud-based architectures, technologies, and platforms to deliver optimized ML models at scale
  • Construct optimized data pipelines feeding ML models
  • Apply continuous integration and continuous deployment practices, including test automation and monitoring
  • Manage code to reduce vulnerabilities, govern models from a risk perspective, and apply Responsible and Explainable AI best practices
  • Use programming languages such as Python, Scala, or Java

Requirements

What you’ll need
  • Bachelor's Degree or higher in Computer Science, Machine Learning, or a related quantitative field
  • At least 4 years of programming experience with Python, Java, Golang, or C++
  • At least 4 years of Machine Learning experience using PyTorch or TensorFlow and Pandas, NumPy, or Scikit-learn
  • At least 4 years of experience using and operating large-scale distributed systems such as Spark or Ray to prepare AI/ML data
  • At least 2 years of experience deploying and operating Machine Learning solutions in production
  • At least 2 years of experience operating production cloud services using AWS, GCP, or Azure
  • At least 2 years of experience using Kubernetes to manage large-scale containerized ML software systems
  • No new-applicant employment authorization sponsorship or immigration-related support available
  • Preferred: Master's or Doctoral Degree in a related field
  • Preferred: 3+ years optimizing ML algorithms, configurations, and infrastructure
  • Preferred: 3+ years following software development best practices including source control, testing, code reviews, and CI/CD
  • Preferred: 3+ years building resilient software solutions with pre-production testing, advanced deployment techniques, monitoring, alarms, and incident response planning
  • Preferred: 3+ years working with ML techniques, model types, architectures, training concepts, and model evaluation
  • Preferred: 3+ years designing, implementing, and scaling production-ready data pipelines for training and evaluating ML models
  • Preferred: 1+ years as a technical lead developing ML solutions
  • Preferred: Authored or co-authored a paper on an ML technique, model, or proof of concept

Benefits

Comp & perks
  • Performance-based incentive compensation, which may include cash bonuses and/or long-term incentives (LTI)
  • Comprehensive, competitive, and inclusive health, financial, and other benefits supporting total well-being
  • Reasonable accommodations for applicants who require them