Lead Machine Learning Engineer

Capital One

Lead Machine Learning Engineer at Capital One focusing on ML applications and systems development at scale. Collaboration with cross-functional Agile teams for continuous improvements and optimizations.

Posted 4/16/2026full-timeMcLean • Virginia • 🇺🇸 United StatesSenior💰 $197,300 - $225,100 per yearWebsite

Tech Stack

Tools & technologies

AWSAzureCloudGoogle Cloud PlatformJavaOpen SourcePythonPyTorchScalaScikit-LearnSparkTensorflow

About the role

Key responsibilities & impact

Design, build, and/or deliver ML models and components that solve real-world business problems, while working in collaboration with the Product and Data Science teams.
Inform your ML infrastructure decisions using your understanding of ML modeling techniques and issues, including choice of model, data, and feature selection, model training, hyperparameter tuning, dimensionality, bias/variance, and validation.
Solve complex problems by writing and testing application code, developing and validating ML models, and automating tests and deployment.
Collaborate as part of a cross-functional Agile team to create and enhance software that enables state-of-the-art big data and ML applications.
Retrain, maintain, and monitor models in production.
Leverage or build cloud-based architectures, technologies, and/or platforms to deliver optimized ML models at scale.
Construct optimized data pipelines to feed ML models.
Leverage continuous integration and continuous deployment best practices, including test automation and monitoring, to ensure successful deployment of ML models and application code.
Ensure all code is well-managed to reduce vulnerabilities, models are well-governed from a risk perspective, and the ML follows best practices in Responsible and Explainable AI.
Use programming languages like Python, Scala, or Java.

Requirements

What you’ll need

Bachelor’s degree
At least 6 years of experience designing and building data-intensive solutions using distributed computing (Internship experience does not apply)
At least 4 years of experience programming with Python, Scala, or Java
At least 2 years of experience building, scaling, and optimizing ML systems
Master's or doctoral degree in computer science, electrical engineering, mathematics, or a similar field (preferred)
3+ years of experience building production-ready data pipelines that feed ML models (preferred)
3+ years of on-the-job experience with an industry recognized ML framework such as scikit-learn, PyTorch, Dask, Spark, or TensorFlow (preferred)
2+ years of experience developing performant, resilient, and maintainable code (preferred)
2+ years of experience with data gathering and preparation for ML models (preferred)
2+ years of people leader experience (preferred)
1+ years of experience leading teams developing ML solutions using industry best practices, patterns, and automation (preferred)
Experience developing and deploying ML solutions in a public cloud such as AWS, Azure, or Google Cloud Platform (preferred)
Experience designing, implementing, and scaling complex data pipelines for ML models and evaluating their performance (preferred)
ML industry impact through conference presentations, papers, blog posts, open source contributions, or patents (preferred)

Benefits

Comp & perks

Capital One offers a comprehensive, competitive, and inclusive set of health, financial and other benefits that support your total well-being.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

machine learningdata pipelinesmodel traininghyperparameter tuningprogramming in Pythonprogramming in Scalaprogramming in JavaML frameworksdata gatheringautomated testing

Soft Skills

collaborationproblem-solvingleadershipcommunicationcross-functional teamworkorganizational skillsresponsible AI practicesexplainable AI practices

Certifications

Bachelor's degreeMaster's degreeDoctoral degree