Principal Machine Learning Engineer

Join Zillow's Agentic AI team in a remote role based in Oregon. The position offers a salary range of USD 204,400 to 326,600 per year and equity awards, reflecting a commitment to rewarding impact and ownership.

We foster a culture that emphasizes fast, autonomous delivery, cross-functional collaboration, and user-centric product innovation. Zillow was named one of Fortune's 100 Best Companies to Work For in 2025 and included on the People Companies That Care 2025 list, underscoring an inclusive and innovative environment. We support ongoing growth and equal opportunity for all employees, with accommodations available as needed.

Responsibilities

• Develop scalable, fault tolerant multimodal agentic experiences that reach millions of customers.
• Design and implement multiple agent interaction modes, including Voice AI and Deep Research.
• Build robust evaluation frameworks, tracing systems, and safety guardrails to ensure AI agents remain trustworthy and responsible.
• Stay at the forefront of emerging agentic paradigms and translate them into tangible product innovations.
• Lead complex, multi-team initiatives bridging applied research and scalable engineering.
• Translate research findings and AI architectures into actionable insights for executives and cross-functional partners.

Requirements

• A master's degree or higher (or equivalent experience) in Computer Science, Electrical Engineering, or a related field, with emphasis on frontier multimodal LLM-based products.
• At least 5 years deploying large-scale ML models, with the most recent 2-3 years focused on agent-based systems or multi-agent collaboration.
• Experience building engaging dialogue systems capable of long conversations, context-aware tool selection, and compliant responses.
• Experience delivering AI services handling hundreds of millions of daily interactions with high availability, low latency, and fault tolerance.
• Familiarity with agentic AI frameworks such as LangGraph, Agents SDK, AutoGen, and production ML infrastructure.
• A track record of publishing research, articles, and patents is a strong plus.
• Strong communication skills with the ability to influence technical direction across teams and brief executive leadership.

Technologies

• LangGraph
• Agents SDK
• AutoGen

About the team

The Agentic AI team at Zillow focuses on transforming the real estate experience by enabling AI assistants that help millions of people find their next home. This lean, customer-focused group ships features with autonomy and speed, bridging research with scalable engineering to deliver real value.

Get to know us

Zillow is reimagining how people move through real estate and through their careers. As a leading real estate platform in the United States, we help customers navigate buying, selling, financing and renting with greater ease and confidence. The company is recognized as a top workplace and is committed to an inclusive, innovative environment where employees are empowered to grow.

We are an equal opportunity employer and strive to create an inclusive environment that values diverse perspectives. If you require accommodations during the interview process, please contact your recruiter. We encourage applicants from all backgrounds to apply.