Workday

Principal ML Engineer, Admin Central

Workday
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2 days ago
Pleasanton, CA, USAStaff+
H1B sponsor

Base Salary

$191k - $342k/yr

Responsibilities

  • Design and maintain agentic AI capabilities including tool calling, multi-agent workflows, planning, reasoning frameworks, and human-in-the-loop integrations.
  • Build scalable ML infrastructure, secure high-throughput services, multi-tenant runtimes, and event-driven data pipelines using Python, AWS, Kubernetes, and cloud-native technologies.
  • Establish MLOps practices covering CI/CD automation, observability, evaluation, model monitoring, privacy, anonymization, explainability, and production resilience.
  • Lead model building, fine-tuning, deployment, retraining, and drift and latency management for domain-specific foundation models.
  • Partner with software engineering, product management, data engineering, SRE, legal, and compliance stakeholders on technical and data-governance strategy.
  • Technically lead cross-functional pods, mentor engineers, drive sprint planning, and translate technical and governance decisions for executives.

Requirements

  • 12+ years of ML development and R&D leadership experience, including 8+ years with advanced ML methodologies, distributed frameworks, and cloud platforms.
  • 6+ years building and hosting scalable ML services, microservices, and high-throughput production data pipelines using Java, Go, Scala, or Python.
  • 4+ years working with LLMs, generative AI, RAG pipelines, and autonomous agent frameworks in enterprise applications.
  • Expertise with Kafka, Spark or Flink, ClickHouse or Iceberg, high-dimensional embeddings, vector databases, data isolation, and large-scale ML pipelines.
  • Deep knowledge of deep learning, LLM orchestration, RAG, agentic systems, Model-Based Design, MCP integrations, tool-use frameworks, and workflow optimization.
  • Mastery of Python and the ML ecosystem, including PyTorch, TensorFlow, LangChain, LangSmith, LlamaIndex, NumPy, Pandas, and Scikit-learn.
  • Strong experience deploying production systems using PostgreSQL, Redis, Kafka, and AWS, GCP, or Azure.
  • Bachelor’s degree in computer science, data science, statistics, mathematics, engineering, or a related field, or equivalent experience; master’s degree or PhD strongly preferred.
  • Exceptional collaboration, mentoring, technical leadership, and executive communication skills.

Benefits

  • Annualized base salary ranges from $228,000 to $342,000 for the primary Pleasanton location and from $190,600 to $342,000 for additional US locations, with possible bonus and annual refresh stock grants.
  • Flex Work combines in-person and remote work, with at least 50% of each quarter spent in the office or in the field with customers, prospects, or partners.
  • Workday provides equal employment opportunity, reasonable accommodations, and consideration under applicable Fair Chance laws.

Tech Stack

Categories

Workday

About Workday

10,000+ employees

Workday builds cloud-based enterprise applications for human capital management and financial management, including payroll, time tracking, expenses, planning, and procurement, sold on a subscription basis with professional services. Founded in 2005 and headquartered in Pleasanton, California, it is a public company traded on NASDAQ as WDAY. Organizations worldwide use Workday to unify HR and finance data, automate processes, and apply AI to workforce and financial operations.

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