Principal Data Engineer

WillHire

full-time

Posted on: 9/3/2025

Location: California, Colorado • 🇺🇸 United States

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💰 $230,400 - $345,600 per year

Lead

AWSAzureCloudGoogle Cloud PlatformPython

About the role

Join the AI Agent Engineering team pioneering HR & Finance AI Agents integrated within Workday suite.
Architect and build foundational evaluation datasets and blueprints for agentic workflows.
Craft, refine, and iterate evaluation datasets to create measurable benchmarks for continuous improvement.
Define standards and build a scalable evaluation machine as the backbone of agentic workflows across the company.
Collaborate across teams to ensure datasets capture complexities of real-world scenarios.

8+ years of experience with product engineering leading the development and delivery of highly available cloud products
5+ years of experience in AI, machine learning, or intelligent automation, with a focus on enterprise applications.
Deep understanding of LLMs, AI agents, and orchestration frameworks (e.g. LangGraph)
Proficiency in Python, cloud AI services (AWS, Azure, GCP), and AI model deployment.
Bachelor's degree in a relevant field, such as Computer Science, Mathematics, or Engineering.
Experience with enterprise-grade AI architectures, API integration, and large-scale automation.
Hands-on experience with vector databases, retrieval-augmented generation (RAG), and fine-tuning LLMs.
Proven ability to solve complex business challenges by translating them into innovative, AI-powered solutions that drive measurable results
Experience in data privacy, security, and compliance for AI in enterprise environments
Experience developing and deploying machine learning solutions using large-scale datasets, including specification design, data collection and labeling, model development, validation, deployment, and ongoing monitoring.
Experience with fine-tuning models including identifying and curating datasets as well as experimenting with models for iterative improvement