Senior/Principal Machine Learning Engineer

WillHire

Senior/Principal Machine Learning Engineer designing core ML systems for AI agents at Workday. Collaborating with cross-functional teams and leading efforts in full lifecycle development of ML solutions.

Posted 6/13/2026full-timePleasanton • California, Washington • 🇺🇸 United StatesSenior💰 $228,000 - $342,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudGoogle Cloud PlatformPyTorchTensorflow

About the role

Key responsibilities & impact

Design and build core ML systems for Workday’s AI agents
Collaborate with software engineers, product managers, and data scientists
Own the full lifecycle from problem framing to deployment
Implement frameworks for LLM-powered agents
Ensure solutions are scalable, observable, and enterprise-ready

Requirements

What you’ll need

10+ years experience in data science, machine learning, or software development
4+ years of experience in machine learning and deep learning frameworks such as Pytorch, TensorFlow
6+ years of experience in building services to host machine learning models in production
3+ years of experience working with large language models (LLMs)
Proven experience with cloud computing platforms (e.g. AWS, GCP)
Bachelor’s (Master’s or PhD preferred) degree in engineering, computer science, physics, math

Benefits

Comp & perks

Workday Bonus Plan
Role-specific commission/bonus
Annual refresh stock grants

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

machine learningdeep learningPytorchTensorFlowlarge language modelscloud computingmodel deploymentproblem framingscalabilityobservability

Soft Skills

collaborationcommunicationownershipproblem-solvingteamwork

Certifications

Bachelor's degreeMaster's degreePhD