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Selected role

Lead Data Scientist

Lennar Miami, FL, US

$30k Senior Full-time

We are Lennar Lennar is one of the nation's leading homebuilders, dedicated to making an impact and creating an extraordinary experience for our Homeowners, Communities, and Associates by building quality homes and providing exceptional customer service, giving back to the communities in which we work and live, and fostering a culture of opportunity and growth for our Associates throughout their career. Lennar has been recognized as a Fortune 500® company and consistently ranked among the top homebuilders in the United States. Join a Company that Empowers you to Build your Future As a Lead Data Scientist at Lennar, you will design, build, and deploy advanced models and AI agents that shape how Lennar prices, sells, and personalizes experiences for customers across 40+ divisions. You’ll work end-to-end—from research and experimentation to production deployment and monitoring—delivering measurable business impact in pricing, sales, operations, and customer engagement. You’ll collaborate across teams, navigate ambiguity, and drive innovation in a rapidly evolving AI ecosystem. As a Lead Data Scientist at Lennar, you will play a key role in developing and operationalizing AI-driven solutions that transform how we price, sell, and personalize experiences for customers across 40+ divisions. You will architect, build, and deploy intelligent systems—including advanced machine learning models and autonomous AI agents—that directly influence business strategy and customer interaction at scale. In this role, you’ll work end-to-end through the full AI development lifecycle: problem framing, research and experimentation, model and agent development, evaluation, production deployment, and continuous monitoring. Your work will drive measurable impact across pricing optimization, sales acceleration, operational efficiency, and customer engagement. You’ll partner closely with cross-functional teams, bring clarity to ambiguous problems, and lead innovation as Lennar evolves its AI capabilities in a fast-moving technology landscape. Your Responsibilities on the Team * Design, build, and deploy autonomous AI agents using frameworks like Amazon Bedrock and AgentCore to solve business problems in pricing, sales, operations, and customer interactions. * Apply machine vision and feature extraction on home attributes (photos, plans, finishes) to inform premium pricing and personalization strategies. * Engineer and maintain data pipelines and systems supporting all models and agents, ensuring scalability and reliability. * Integrate agents with enterprise systems and protocols (MCP servers, A2A protocol, internal APIs). * Design and run experiments (A/B tests, multi-armed bandits, uplift models) to measure and optimize model and agent performance. * Ensure observability and reliability of deployed agents, including logging, evaluation, monitoring, and drift detection. * Proactively gather feedback from stakeholders and adapt solutions for adoption and measurable impact. * Translate complex data science and statistical concepts into clear recommendations, stories, and visualizations for executives and non-technical audiences. * Favor incremental, explainable solutions that deliver quick wins and scale over time. * Drive experimentation with new tools and approaches, ensuring robustness, governance, and scalability in production deployments. * Share learnings with the broader team to raise the bar on data science and agentic development across the organization. * Manage timelines and expectations transparently with both the data science team and business stakeholders. Requirements * Bachelor’s or Master’s degree in Statistics, Economics, Math, Computer Science, Data Science, Machine Learning, or related field (or equivalent experience). * 5+ years of relevant experience (1+ with PhD, 3+ with MS) as a data scientist, ML engineer, or applied AI developer delivering production-ready models and systems. * Strong proficiency in Python and SQL, with experience owning the full data science stack (data pipelines + models + deployment). * Hands-on experience with AI development frameworks (LangChain, Strands, Amazon Bedrock, AgentCore, or equivalent). * Experience with experimentation frameworks (A/B testing, uplift modeling, multi-armed bandits, causal ML). * Exposure to machine vision techniques (CNNs, transfer learning, embeddings) and NLP techniques (embeddings, transformers, prompt engineering). * Understanding AI agent observability (evaluation frameworks like LangFuse, RAGAS, Weights & Biases, custom monitoring). * Experience with system integrations: APIs, A2A protocol, MCP servers, orchestration pipelines. * Comfort working with large-scale, imperfect real-world datasets and making progress despite complexity. * Strong engineering skills: ability to design and maintain production pipelines, microservices, and scalable systems. * Proven ability to navigate ambiguity, rapidly prototype, and move solutions into production. * Collaborative communicator who can align technical solutions with business priorities across diverse stakeholders. * Bonus: experience with RAG pipelines, LLM fine-tuning, RLHF, multi-agent orchestration, feature stores, survival analysis/churn modeling, and attribution modeling. Physical & Office/Site Presence Requirements: This is primarily a sedentary office position which requires the incumbent to have the ability to operate computer equipment, speak, hear, bend, stoop, reach, lift, and move and carry up to 25 lbs. Finger dexterity is necessary. This description outlines the basic responsibilities and requirements for the position noted. This is not a comprehensive listing of all job duties of the Associates. Duties, responsibilities and activities may change at any time with or without notice. Lennar is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws #LI-GQ1 Life at Lennar At Lennar, we are committed to fostering a supportive and enriching environment for our Associates, offering a comprehensive array of benefits designed to enhance their well-being and professional growth. Our Associates have access to robust health insurance plans, including Medical, Dental, and Vision coverage, ensuring their health needs are well taken care of. Our 401(k) Retirement Plan, complete with a $1 for $1 Company Match up to 5%, helps secure their financial future, while Paid Parental Leave and an Associate Assistance Plan provide essential support during life's critical moments. To further support our Associates, we provide an Education Assistance Program and up to $30,000 in Adoption Assistance, underscoring our commitment to their diverse needs and aspirations. From the moment of hire, they can enjoy up to three weeks of vacation annually, alongside generous Holiday, Sick Leave, and Personal Day policies. Additionally, we offer a New Hire Referral Bonus Program, significant Home Purchase Discounts, and unique opportunities such as the Everyone’s Included Day. At Lennar, we believe in investing in our Associates, empowering them to thrive both personally and professionally. Lennar Associates will have access to these benefits as outlined by Lennar’s policies and applicable plan terms. Visit Lennartotalrewards.com to view our suite of benefits. Join the fun and follow us on social media to see what's happening at our company, and don't forget to connect with us on Lennar: Overview | LinkedIn< https://www.linkedin.com/company/lennar/ > for the latest job opportunities. Lennar is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws.

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