Senior AI Platform Engineer – Gen AI & Orchestration

Capital One; San Jose (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Capital One is pioneering responsible AI systems and scalable AI infrastructure. The IFX team collaborates with engineers, researchers, and product managers to deliver AI‑powered products that transform how associates work and how customers interact with Capital One.

You will design and deploy AI software components, including foundation models, LLM inference, and multi‑model orchestration, while advancing a long‑term roadmap for foundational AI systems across the company.

Responsibilities

• Partner with a cross‑functional team of engineers, research scientists, technical program managers, and product managers to deliver AI‑powered products that change how our associates work and how our customers interact with Capital One.
• Design, develop, test, deploy, and support AI software components including foundation model training, large language model inference, agents and multi‑agent workflows, similarity search, guardrails, model evaluation, experimentation, governance, and observability, etc.
• Leverage a broad stack of Open Source and SaaS AI technologies such as AWS Ultraclusters, Huggingface, VectorDBs, PyTorch, and more.
• Invent and introduce state‑of‑the‑art foundation model optimization techniques to improve the performance — scalability, cost, latency, throughput — of large scale production AI systems.
• Contribute to the technical vision and the long term roadmap of foundational AI systems at Capital One.
• Design, implement and optimize multi‑model orchestration pipelines - integrating LLMs, vector search, and domain‑specific models into unified systems
• Establish and lead cost‑performance governance reviews across AI systems, tracking GPU utilization, model throughput, and inference cost efficiency
• Lead team design councils or design review boards to ensure technical consistency and compliance with AI engineering standards
• Mentor Principal and Manager‑level AI engineers, fostering cross‑domain learning and elevating organizational technical maturity

Job description

Capital One is pioneering responsible AI systems and scalable AI infrastructure. The IFX team collaborates with engineers, researchers, and product managers to deliver AI‑powered products that transform how associates work and how customers interact with Capital One.

You will design and deploy AI software components, including foundation models, LLM inference, and multi‑model orchestration, while advancing a long‑term roadmap for foundational AI systems across the company.