Senior Lead Software Engineer, Full Stack (AI Platform & Knowledge Library) (Enterprise Platforms Technology)
Do you love building AI-powered platforms that operate at enterprise scale? Do you thrive at the intersection of applied machine learning, knowledge engineering, and production software systems? At Capital One, you'll be part of a team of makers, breakers, doers and disruptors who solve real problems and meet real customer needs.
We are seeking a Senior Lead Software Engineer to own the AI platform and knowledge infrastructure at the heart of our next-generation marketing content generation capabilities. As a Capital One Senior Lead Software Engineer, you'll have the opportunity to drive a major transformation in how we create, validate, and deliver marketing content across all channels - building the shared knowledge platform that enables AI systems to generate compliant, on-brand content at scale across the entire organization.
Enterprise Platforms Technology (EPTech) comprises many of Capital One's most important enterprise platforms. We play an essential role in establishing practices for building technology solutions across the company, while also delivering capabilities that exemplify those practices.
What You'll Do
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Design and build the Content Moderation Knowledge Library - a business-unit-scoped, RAG-backed corpus covering regulatory requirements, brand rules, claims and disclosures, and marketing context, reusable across channels and product lines
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Own the embedding search pipeline - implement and tune retrieval pipelines for grounded AI generation, including chunking strategy, embedding model selection, index refresh, and hybrid search
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Lead Prompt MLOps - treat prompts as compiled, versioned artifacts; own the evaluation
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