Job Description

We are Lennar 

Lennar is one of the nation's leading homebuilders, dedicated to making an impact and creating an extraordinary experience for their Homeowners, Communities, and Associates by building quality homes and providing exceptional customer service, giving back to the communities in which we work and live in, 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

The primary mission of the Senior Data Scientist role is to help our business evolve into an insights-driven organization. This position sits within our Digital Experience organization, which aims to drive improved business outcomes using insights gleaned from data and analytics and infuse them into Lennar’s corporate fabric. The Senior Data Scientist will design and deploy AI agents and intelligent systems that help users solve real problems. This role requires experience building agentic AI solutions, including reasoning systems, tools, and workflows that operate reliably in production environments.

• A career with purpose.

• A career built on making dreams come true.

• A career built on building zero defect homes, cost management, and adherence to schedules.

Your Responsibilities on the Team 

• Partner closely with product owners to identify data science and AI opportunities across the organization.

• Design, build, and deploy AI agents that help users solve real world problems through a conversational interfaces.

• Architect agentic workflows, including tools and RAG pipelines.

• Collaborate with the customer experience vertical to deliver actionable insights that drive business decisions.

• Drive continuous improvement through measurement, monitoring, and iterative experimentation on agent performance and reliability.

• Build and operationalize predictive and prescriptive models for internal stakeholders using structured and unstructured data.

• Collaborate with engineering teams to embed agents and models into human-in-the-loop applications.

• Mentor junior data scientists to support their professional growth.

Requirements

• Bachelor’s degree in Data Science, Mathematics, Statistics, Engineering, Computer Science, or a related field — or equivalent experience.

• 6+ years delivering business insights through data science; 4+ years writing SQL.

• 1+ years building and deploying AI/LLM solutions.

• Demonstrated experience designing and shipping AI agents.

• Proficiency with agentic AI frameworks (LangChain, LlamaIndex, AutoGen, CrewAI) and LLM APIs (OpenAI, Anthropic, Azure OpenAI).

• Hands-on experience building RAG pipelines and integrating vector databases (e.g., Pinecone, Weaviate, pgvector).

• Deep understanding of ML/NLP models, statistics, and machine learning frameworks (scikit-learn, TensorFlow, Keras).

• Strong software engineering fundamentals: code modularity, version control (Git), testing, and documentation.

• Solid understanding of cloud technologies (Azure, AWS), including databases, infrastructure, and automation.

Physical & Office/Site Presence Requirements:

This is primarily a sedentary office position. The role requires the ability to operate standard computer equipment; finger dexterity is necessary.

• Willingness to travel up to 10% of the time to divisions within the Lennar family.

• Ability to collaborate effectively and professionally with co-workers across the organization.

• Openness to cross-training for other positions within the team, as required by leadership.

• Commitment to complying with and implementing company policies and procedures.

• Receptive to constructive feedback and dedicated to continuous personal improvement.

• Strong work ethic and a collaborative, team-first mindset.

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.

During the course of your employment, you may be required to use, download, or access certain Company-approved tools, programs, applications, or systems. These resources may include, but are not limited to, applications designed for customer engagement, operational efficiency, data analysis, Artificial Intelligence (AI) tools, and other business functions. 

Lennar is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws.

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.

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Lennar is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws.