Your work days are brighter here.
At Workday, it all began with a conversation over breakfast. When our founders met at a sunny California diner, they came up with an idea to revolutionize the enterprise software market. And when we began to rise, one thing that really set us apart was our culture. A culture which was driven by our value of putting our people first. And ever since, the happiness, development, and contribution of every Workmate is central to who we are. Our Workmates believe a healthy employee-centric, collaborative culture is the essential mix of ingredients for success in business. That’s why we look after our people, communities and the planet while still being profitable. Feel encouraged to shine, however that manifests: you don’t need to hide who you are. You can feel the energy and the passion, it's what makes us unique. Inspired to make a brighter work day for all and transform with us to the next stage of our growth journey? Bring your brightest version of you and have a brighter work day here.
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About the Team
Join the AI Agent Engineering team, where we're pioneering cutting-edge HR & Finance AI Agents that deeply integrate within the Workday suite. Be part of an innovative, agile force architecting intelligent agents that will revolutionize our customers' workday.About the Role
We are seeking an experienced Senior Principal/Principal Machine Learning Engineer who will serve as a technical architect for a cross-functional team building transformative AI agents for HR & Finance. This role is critical in defining the tooling strategy, staying ahead of industry trends, and ensuring our AI-driven solutions seamlessly integrate deeply within the Workday stack. You will be responsible for evaluating and selecting AI frameworks, orchestrating agent workflows, and leveraging LLMs, automation frameworks and enterprise AI technologies to design and develop scalable, reliable and trusted AI agents for both the HR and Finance. As agents by design will span multiple parts of the business they will excel at building trusted relationships with other leaders and have experience in leading without authority and collaborating across organizational boundaries.
Key Responsibilities:Architect AI-powered agents that integrate deeply into HR and Financial workflows, accelerating intelligent decision making.
Understanding of AI Lifecycle: Comprehensive knowledge of the AI system lifecycle, including problem definition, data acquisition, model training, system integration, and validation
Evaluate, select, and integrate AI tools, frameworks, and platforms to ensure scalability, efficiency, and compliance
Stay up to date with advancements in AI, LLMs, RAG, autonomous agents and orchestration frameworks to drive innovation
Define best practices for agent design, security, and governance in AI-driven enterprise applications.
Work with product, engineering, and data science teams to design and implement AI-based automation solutions that enhance HR and financial operations.
Develop strategies for multi-agent collaboration, ensuring AI agents can work together and interact effectively with users and across the business.
Identify new opportunities to embed AI into the Workday platform.
Collaborate with external AI vendors, cloud providers, and open-source communities to bring the best-in-class technologies into our AI stack.
Establish monitoring, feedback loops, and continuous learning mechanisms to improve agent performance over time.
About You
Basic Qualifications for Sr. Principal ML Engineer
12+ years of experience with product engineering leading the development and delivery of highly available cloud products
7+ 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)
Experience with enterprise-grade AI architectures, API integration, and large-scale automation.
Proficiency in Python, cloud AI services (AWS, Azure, GCP), and AI model deployment.
Strong problem-solving skills and the ability to translate business needs into AI-powered solutions.
Experience in data privacy, security, and compliance for AI in enterprise environments
Basic Qualifications for Principal ML Engineer
10+ 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)
Experience with enterprise-grade AI architectures, API integration, and large-scale automation.
Proficiency in Python, cloud AI services (AWS, Azure, GCP), and AI model deployment.
Strong problem-solving skills and the ability to translate business needs into AI-powered solutions.
Experience in data privacy, security, and compliance for AI in enterprise environments
Other Qualifications
Masters/Doctorate degree in a relevant field, such as Computer Science, Mathematics, or Engineering.
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.
Hands-on experience with vector databases, retrieval-augmented generation (RAG), and fine-tuning LLMs.
Experience with fine-tuning models including identifying and curating datasets as well as experimenting with models for iterative improvement
Posting End Date: 09/19/2025
If hired in Colorado, click here for information about Workday's comprehensive benefits in Colorado: https://workdaybenefits.com/us/welcome-to-workday-benefits/prospective-workmates.
The application deadline for this role is the same as the posting end date stated.
Workday Pay Transparency Statement
The annualized base salary ranges for the primary location and any additional locations are listed below. Workday pay ranges vary based on work location. As a part of the total compensation package, this role may be eligible for the Workday Bonus Plan or a role-specific commission/bonus, as well as annual refresh stock grants. Recruiters can share more detail during the hiring process. Each candidate’s compensation offer will be based on multiple factors including, but not limited to, geography, experience, skills, job duties, and business need, among other things. For more information regarding Workday’s comprehensive benefits, please click here.
Primary Location: USA.WA.Seattle
Additional Considerations:
If performed in Colorado, the pay range for this job is $238,400 - $357,600 USD based on min and max pay range for that role if performed in CO.The application deadline for this role is the same as the posting end date stated as below:
Our Approach to Flexible Work
With Flex Work, we’re combining the best of both worlds: in-person time and remote. Our approach enables our teams to deepen connections, maintain a strong community, and do their best work. We know that flexibility can take shape in many ways, so rather than a number of required days in-office each week, we simply spend at least half (50%) of our time each quarter in the office or in the field with our customers, prospects, and partners (depending on role). This means you'll have the freedom to create a flexible schedule that caters to your business, team, and personal needs, while being intentional to make the most of time spent together. Those in our remote "home office" roles also have the opportunity to come together in our offices for important moments that matter.
Pursuant to applicable Fair Chance law, Workday will consider for employment qualified applicants with arrest and conviction records.
Workday is an Equal Opportunity Employer including individuals with disabilities and protected veterans.
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