Zillow

Reimagining real estate to make it easier than ever to move from one home to the next.

Principal Machine Learning Engineer

Machine Learning EngineerMachine Learning EngineerFull TimeRemoteTeam 5,001-10,000Since 2006H1B SponsorCompany SiteLinkedIn

Location

California + 7 moreAll locations: California, Connecticut, District of Columbia, New Jersey, New York, Maryland, Massachusetts, Washington

Posted

161 days ago

Salary

$204.4K - $326.6K / year

Postgraduate Degree7 yrs expEnglish

Job Description

• Develop advanced multimodal foundational technologies • Prototype ideas, evaluate, and deploy models to Zillow's highly scalable infrastructure platforms • Develop perception and language understanding, deep reasoning, and reinforcement learning for AI agent decision-making • Leverage frameworks like AgentSDK, and LangChain/LangGraph • Design, prototype, and develop multi-agent systems • Mentor and guide engineers in using the right technologies • Distill complex research findings into actionable insights • Refine processes for experimentation, A/B testing, and production rollouts

Job Requirements

  • 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

  • comprehensive medical, dental, vision, life, and disability coverages
  • parental leave
  • family benefits
  • retirement contributions
  • paid time off

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