Capital One

AI Engineer 3 (AI Foundations)

Capital One
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3 days ago
McLean, VA, USA +2 moreSenior

Base Salary

$162k - $201k/yr

Responsibilities

  • Design, develop, test, deploy, and support AI software components including foundation-model training, LLM inference, agents, similarity search, guardrails, evaluation, governance, experimentation, and observability.
  • Develop and benchmark multi-turn conversational and tool-using agent workflows with measurable performance and safety metrics.
  • Build scalable pipelines for training, fine-tuning, and deploying foundation and domain-specific models across multiple environments.
  • Invent and apply optimization techniques to improve AI-system scalability, cost, latency, throughput, and hardware utilization.
  • Collaborate with research and data engineering teams to curate datasets and improve model evaluation methodologies.
  • Contribute to model governance, security, traceability, lineage documentation, and version control.
  • Mentor junior AI engineers and promote engineering excellence, reproducibility, and responsible experimentation.

Requirements

  • Bachelor's degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or a related field plus at least three years of experience developing AI and ML algorithms or technologies, or a relevant master's degree plus at least one year of such experience.
  • At least three years of programming experience with Python, Go, Scala, CUDA, or Java.
  • Experience developing AI systems with tradeoff decisions involving cost, latency, throughput, and accuracy.
  • Preferred experience deploying scalable and responsible AI solutions on AWS, Google Cloud, Azure, or equivalent private cloud platforms.
  • Experience developing, delivering, and supporting AI services and optimizing training or inference software.
  • Experience with agentic AI systems, LLM performance evaluation, RAG, vector database integrations, fine-tuning workflows, prompt engineering, safety guardrails, and red-teaming.
  • Ability to understand scientific publications and apply novel AI techniques in production.

Benefits

  • Hybrid work arrangement subject to Capital One's required on-site presence policy.
  • Comprehensive health, financial, and other benefits supporting employee well-being, with eligibility varying by employment status and management level.
  • Eligible for performance-based incentive compensation, including potential cash bonuses and long-term incentives.

Tech Stack

AzureC#C++GoGoogle CloudJavaPythonPyTorchScala
Capital One

About Capital One

10,000+ employees

Capital One is a U.S. consumer and commercial bank that offers credit cards, checking and savings accounts, auto financing, and lending to small and large businesses. It earns revenue from interest income and interchange/fees across its card and banking products, and develops cloud-based digital services. Founded in 1994, Capital One is publicly traded on the NYSE (COF) and is headquartered in McLean, Virginia.

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