Capital One

AI Engineer 3

Capital One
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1 day ago
Cambridge, MA, USA +3 moreSenior

Base Salary

$177k - $201k/yr

Responsibilities

  • Partner with engineers, research scientists, technical program managers, and product managers to deliver AI-powered products.
  • Design, develop, test, deploy, and support AI software components including foundation-model training, LLM inference, agents, similarity search, guardrails, evaluation, experimentation, governance, and observability.
  • Develop optimization techniques and scalable pipelines for training, fine-tuning, deploying, and serving foundation and domain-specific models.
  • Lead development and benchmarking of multi-turn conversational and tool-using agent workflows with measurable performance and safety metrics.
  • 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 for deployed AI assets.
  • 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 AI/ML experience, or a relevant master’s degree plus at least one year of AI/ML experience.
  • At least three years of programming experience with Python, Go, Scala, CUDA, or Java.
  • Experience making cost, latency, throughput, and accuracy tradeoffs in AI systems.
  • 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, retrieval-augmented generation, vector databases, fine-tuning, prompt engineering, safety guardrails, and red-teaming.

Benefits

  • The role is eligible for performance-based incentive compensation, which may include cash bonuses and/or long-term incentives.
  • Capital One offers health, financial, and other benefits supporting total well-being, with eligibility varying by employment status and management level.
  • Capital One will consider sponsoring a new qualified applicant for employment authorization for this position.

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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