Senior Data Scientist, Search & NLP

Realtor.com Careers • $120K — $150K *
Austin, TX 78745In-Person
Consumer Technology
5 - 7 years of experience
Today
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Job Overview by Ladders

Qualifications

  • 5+ years in data science, 2+ years focused on NLP or search analytics.
  • Hands-on experience with NLP techniques like query classification and semantic similarity.
  • Strong Python and NLP libraries proficiency (Hugging Face, spaCy, etc.).
  • Experience with conversational data analysis and LLM evaluation tooling.
  • Robust SQL skills for working with large-scale datasets.
  • Solid experimentation fundamentals including A/B testing and statistical inference.
  • Excellent communication skills for presenting AI concepts to stakeholders.
  • Bachelor's or Master's degree in a relevant field.

Responsibilities

  • Measure and evaluate semantic search models using NLP frameworks.
  • Prototype data products leveraging conversational query data for personalization.
  • Design tests and define metrics for search model changes; communicate results.
  • Instrument and analyze conversational AI data with observability tooling.
  • Partner with leadership to define success metrics and shape analytics roadmap.
  • Work in an AI-native way, applying LLM APIs and workflows.
  • Evaluate and adopt new tools as the AI space evolves.

Benefits

  • Inclusive and competitive medical, Rx, dental, and vision coverage
  • Family forming benefits
  • 13 Paid Holidays
  • Flexible Time Off
  • 8 hours of paid Volunteer Time off
  • Immediate eligibility into Company 401(k) plan with 3.5% company match
  • Tuition Reimbursement program
  • 1:1 personalized Financial Planning Sessions
  • Student Debt Retirement Savings Match program
  • Free snacks and refreshments in office locations
Full Job Description
About the Role

As a Senior Data Scientist on our Search & Algorithms team, you'll own NLP analytics for our next-generation semantic search experiences. You'll apply NLP and LLM-based techniques to a proprietary corpus of millions of real consumer search interactions-extracting signals like buyer vs. seller intent and conversational patterns to improve how our models rank and personalize results. You'll also prototype data products that turn those signals into features product and engineering can ship. This is an AI-native role: LLM evaluation tooling and AI-assisted workflows are core to how you'll work, not afterthoughts.
What You'll Do
  • Measure and evaluate semantic search models using NLP and LLM-based evaluation frameworks on real user queries-surfacing buyer vs. seller context, exploration vs. transaction signals, and conversational patterns that inform ranking and personalization.
  • Prototype data products that leverage conversational query data and behavioral signals to drive personalized search experiences, translating NLP insights into actionable features for product and engineering teams.
  • Design tests for search model changes; define primary and guardrail metrics; communicate results clearly to both technical and non-technical stakeholders.
  • Instrument and analyze conversational AI data using LLM observability and evaluation tooling-tracking model outputs, scoring response quality, and surfacing patterns across large volumes of AI-generated interactions to inform model and product improvements.
  • Partner with search product and engineering leadership to define success metrics, shape the analytics roadmap for search, and present findings to senior leadership.
  • Work in an AI-native way: apply agentic AI workflows, LLM APIs, and AI-assisted development to accelerate your work and help set the standard for how our team uses AI. Actively evaluate and adopt new tooling as the space evolves.
What You'll Bring
  • 5+ years in data science, with 2+ years focused on NLP, text analytics, or search analytics.
  • Hands-on NLP experience: query classification, intent detection, semantic similarity, entity extraction, or LLM-based evaluation.
  • Strong Python skills and proficiency with NLP libraries (Hugging Face, spaCy, scikit-learn, or similar).
  • Experience analyzing conversational and LLM-generated data using observability or evaluation tooling (e.g., Langfuse, Braintrust, or similar platforms for tracing, scoring, and evaluating AI outputs).
  • Robust SQL skills and comfort working with large-scale clickstream or query log datasets.
  • Solid experimentation fundamentals: A/B testing, power analysis, and statistical inference.
  • Ability to build rapid prototypes and translate analytical findings into product-ready recommendations.
  • Excellent communication skills-able to present NLP and AI concepts clearly to product and executive stakeholders.
  • Bachelor's or Master's degree in Computer Science, Statistics, Linguistics, Information Science, or a related field.
Preferred Qualifications
  • Experience with search ranking analytics, query log analysis, or information retrieval measurement.
  • Hands-on experience with LLM APIs (OpenAI, Claude, Gemini, or similar) and prompt engineering for evaluation, scoring, or analytical tasks.
  • Experience working with LLM observability platforms (Langfuse, Braintrust, or similar) to instrument, trace, and evaluate AI product performance at scale.
  • Prior work in consumer-facing search products or two-sided marketplace analytics.
  • Experience with Snowflake or similar cloud data warehouses.
  • Ph.D. in Computer Science, Computational Linguistics, NLP, or a related field.
How We Work:

We balance creativity and innovation on a foundation of in-person collaboration. For most roles, our employees work three or more days in our offices, where they have the opportunity to collaborate in-person, adding richness to our culture and knitting us closer together.
How We Reward You:

Realtor.com is committed to investing in the health and wellbeing of our employees and their families. Our benefits programs include, but are not limited to:
  • Inclusive and Competitive medical, Rx, dental, and vision coverage
  • Family forming benefits
  • 13 Paid Holidays
  • Flexible Time Off
  • 8 hours of paid Volunteer Time off
  • Immediate eligibility into Company 401(k) plan with 3.5% company match
  • Tuition Reimbursement program for degreed and non-degreed programs
  • 1:1 personalized Financial Planning Sessions
  • Student Debt Retirement Savings Match program
  • Free snacks and refreshments in each office location

About Realtor.com Careers

Realtor.com Careers

Joining the dynamic team at Realtor.com presents unparalleled job opportunities in the real estate industry. As a leading entity in online real estate listings, Realtor.com offers a unique platform where technology and market insights converge to transform the way people find homes.

Work That Inspires

At Realtor.com, the mission is to empower individuals to make smarter decisions regarding buying, selling, renting, and living in homes. This is achieved by fostering a culture of innovation, leadership, and diversity. The team at Realtor.com is committed to driving growth and excellence in the real estate sector through digital innovation.

Explore Career Opportunities

Realtor.com is building a market-leading team to guide users through their real estate journeys with cutting-edge technology and data-driven insights. The company offers a variety of positions, from technology developers to marketing experts, each contributing to the seamless experience provided to users.

Engage in Meaningful Work

Join a group of dedicated professionals who are at the forefront of merging real estate knowledge with technological innovation. Realtor.com provides a platform for employees to challenge the norms and introduce solutions that have a lasting impact on the real estate market.

Develop Your Career

Realtor.com supports professional growth and skill development through comprehensive training programs and leadership workshops. The company is dedicated to fostering an environment where career advancement is not just a possibility, but a reality. With a commitment to diversity and inclusion, Realtor.com ensures that all team members have access to the tools and training necessary to thrive.

Benefits and Culture

Realtor.com is known for its vibrant culture that champions creativity, inclusivity, and professional growth. Employees enjoy a range of benefits designed to support their health, well-being, and financial security. The team at Realtor.com values collaboration and encourages networking and mentorship among its members.

Join the Team

Discover the array of employment and internship opportunities at Realtor.com. The company is actively hiring individuals who are passionate, innovative, and ready to contribute to a team that’s reshaping the real estate industry. Explore open positions that match your skills and interests, and prepare to bring your career to the next level.

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Apply Now

Ready to make a significant impact in the real estate sector? Submit your resume, prepare for your interview, and join a team that’s set on redefining the industry. Realtor.com is looking for professionals who are eager to drive change and excel in their careers.

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Real Estate & Construction
* Ladders Estimates

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