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Manager, Data Scientist -Advanced Recommenders and Personalization Systems (Transformers, LLMs & Reinforcement Learning)

$179k - $205k • McLean, VA • Full-time

Posted 1mo ago

Remote Work Policy

On-site

Employment Type

Full-time

Categories

Machine Learning Engineer

About the job

We are building the next generation of large-scale reinforcement learning based recommender systems and arbitration engines that will power personalized experiences across marketing, customer servicing, and digital products. This is a high-impact initiative central to our platform, leveraging rich credit and customer behavioral data from tens of millions of customers to deliver intelligent, real-time experiences across our digital experiences, including Mobile, Web, and Email. You will help shape a foundational system that reaches a vast portion of the U.S. population, influencing how millions of people discover, decide, and engage across financial and lifestyle experiences.

Responsibilities

  • Design and develop state-of-the-art recommender systems using transformers, LLMs, and reinforcement learning.
  • Advance personalization through sequence modeling, multi-modal learning, and contextual decision-making.
  • Build and fine-tune foundation models trained on large-scale customer interaction data.
  • Apply reinforcement learning to optimize long-term user engagement and business outcomes.
  • Build state-of-the-art evaluation frameworks to measure the efficacy of campaigns and recommendation systems.
  • Collaborate with engineering and product teams to deploy scalable, production-grade, low-latency systems.
  • Drive innovation in emerging areas such as generative recommendations, conversational systems, and cross-domain personalization.

Requirements

  • Customer first mindset, with a passion for doing the right thing for customers.
  • Innovative approach, continually researching and evaluating emerging technologies and state-of-the-art methods.
  • Creative problem-solver, comfortable defining and tackling big, undefined problems.
  • Leadership qualities, challenging conventional thinking and driving improvements.
  • Technical proficiency with open-source languages and developing data science solutions using open-source tools and cloud platforms.
  • Strong statistical understanding, including model building, validation, and interpretation.
  • Expertise in handling and analyzing large-scale datasets from various sources.
  • Strong background in machine learning, deep learning, and recommender systems.
  • Hands-on experience with transformers, LLMs, or reinforcement learning.
  • Experience working with large-scale datasets and distributed training.
  • Solid programming skills in Python and modern ML frameworks (e.g., PyTorch, TensorFlow).
  • Ability to translate research into impactful, real-world systems.
  • Bachelor's Degree in a quantitative field plus 6 years of experience, or Master's Degree plus 4 years of experience, or PhD plus 1 year of experience.
  • At least 1 year of experience leveraging open source programming languages for large scale data analysis.
  • At least 1 year of experience working with machine learning.
  • At least 1 year of experience utilizing relational databases.
  • PhD in a STEM field plus 3 years of experience in data analytics (preferred).
  • At least 1 year of experience working with AWS (preferred).
  • At least 4 years’ experience in Python, Scala, or R for large scale data analysis (preferred).
  • At least 4 years’ experience with machine learning (preferred).
  • At least 4 years’ experience with SQL (preferred).

About Capital One