Note: The job is a remote job and is open to candidates in USA. Zillow is a leading real estate platform transforming the industry through AI technologies. The Principal Machine Learning Engineer will develop advanced multimodal technologies and mentor engineers to enhance AI-driven solutions for home buyers and real estate professionals.

Responsibilities

• Leverage frameworks like AgentSDK, and LangChain/LangGraph to design, prototype, and develop multi-agent systems that are capable of highly autonomous and context-aware interactions
• Leverage advanced GenAI models including reasoning models, real-time voice API, etc, to build agentic prototypes and later on convert them into product-level agentic skills and deploy to users
• Have the mentality of 'build, learn, and pivot', and hold the high bar of shipping into production
• Mentor and guide engineers in using the right technologies for agentic AI solutions and foster a culture of innovation and responsible AI usage
• Distill complex research findings and system designs into actionable insights for diverse audiences—including executives
• Remain on the cutting edge of agentic AI emerging paradigms, driving product innovation
• Serve as the focal point for applied science projects, driving alignment on timelines, and prioritization
• Continuously refine processes for experimentation, A/B testing, and production rollouts to balance rapid innovation with reliability and responsible deployment

Skills

• A master's degree or above, equivalent experience in Computer Science, Electrical Engineering, or a related field with emphasis on foundational LLM, agentic AI, reinforcement learning, AI planning, or natural language processing
• 7+ years of hands-on work building large-scale, high-impact solutions—ideally in the most recent two years building agent-based systems, multi-agent collaboration, or similar paradigms
• Experience developing dialogue systems capable of long conversations, multi-step reasoning, context-rich decision-making
• Experience deploying and scaling AI services capable of handling hundreds of millions of daily interactions with high availability, low latency, and robust fault tolerance
• A track record of publishing high-impact research in top AI/ML venues is a big plus

Benefits

• In addition to a competitive base salary this position is also eligible for equity awards based on factors such as experience, performance and location.
• Employees in this role will not be paid below the salary threshold for exempt employees in the state where they reside.
• This role has been categorized as a Remote position.
• “Remote” employees do not have a permanent corporate office workplace and, instead, work from a physical location of their choice, which must be identified to the Company.
• Zillow was named one of FORTUNE 100 Best Companies to Work For® in 2025, and included on the PEOPLE Companies That Care® 2025 list.

Company Overview

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