Senior Full Stack Software Engineer

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

We are seeking a talented Sr Software Engineer to join our Product Engineering team. This is a hands-on backend engineering role focused on building Python-based APIs and microservices on a modern AWS cloud platform. You will collaborate with cross-functional teams to understand business requirements and translate them into scalable, production-ready technical solutions.

Your Responsibilities on the Team

Software Development:

• Design, develop, and maintain Python backend services and REST APIs, ensuring scalability, performance, and security.

• Write clean, type-safe, and well-tested code using FastAPI or Django, SQLAlchemy v2.0, and Pydantic.

• Build and own relational data models in PostgreSQL, including schema design, migrations (Alembic), and query optimization.

• Develop event-driven workflows using Kafka or SQS/SNS for asynchronous service communication.

Architecture and Design:

• Contribute to the architecture and design of backend services, ensuring alignment with business goals and technical standards.

• Participate in technical design reviews, providing feedback and recommendations to improve system design and code quality.

• Collaborate with platform and data teams to integrate services into shared infrastructure and automated deployment pipelines.

Collaboration and Teamwork:

• Collaborate with product managers, designers, and other engineers to deliver high-quality features and enhancements.

• Participate in agile ceremonies such as sprint planning, stand-ups, and retrospectives.

• Communicate effectively with both technical and non-technical stakeholders, providing updates on progress and challenges.

Mentorship and Leadership:

• Mentor and guide junior engineers, sharing knowledge and best practices to help them grow in their roles.

• Lead by example, demonstrating a strong work ethic, commitment to quality, and a proactive approach to problem-solving.

• Take ownership of features or projects, driving them from concept to completion with minimal supervision.

Continuous Improvement and Innovation:

• Stay up to date with industry trends, emerging technologies, and best practices, and bring new ideas to the team.

• Identify opportunities for process improvements, refactoring, or technical enhancements to optimize the development lifecycle.

• Participate in technical discussions and contribute to the evolution of the team’s technical direction.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).

• 5+ years of backend software engineering experience with a strong focus on Python (FastAPI or Django).

• Solid experience with PostgreSQL: schema design, ORM usage (SQLAlchemy preferred), and query optimization.

• Strong understanding of RESTful API design, microservices architecture, and service communication patterns.

• Experience with event-driven architecture and message streaming (Kafka, SQS/SNS, or equivalent).

• Proficiency writing clean, maintainable code with type annotations, linting (Ruff/mypy), and test coverage (pytest).

• Familiarity with containerization (Docker) and CI/CD pipelines (GitHub Actions preferred).

• Experience with Git-based workflows, code review, and agile development practices.

• Excellent problem-solving skills with a detail-oriented approach and a strong sense of ownership.

• Effective communication skills and ability to work well in a collaborative team environment.

• AWS experience a plus — particularly ECS/Fargate, RDS, ElastiCache, S3, and Secrets Manager.

• Familiarity with Infrastructure as Code (AWS CDK or Terraform) and observability tooling (Grafana, Prometheus, Sentry) a plus.

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.

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.

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.