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

As a Senior Software Engineer, you’ll play a pivotal role in transforming how construction teams and trade partners communicate and operate. You’ll help build a secure, scalable platform based on text messaging and AI that empowers crews to collaborate seamlessly and boost productivity. You’ll work alongside a tight-knit group of engineers who originally came from a startup and continue to work like a startup within a larger company. In this role you will have a high level of individual ownership where you will shape the roadmap, ship impactful features, and solve complex problems with speed and precision. We value rigorous engineering practices like test-driven development and performance optimization, and we’re looking for someone who thrives in a fast-paced environment where execution and ownership are key.

• 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

• Architect and deliver high-throughput backend services that power mission-critical workflows for B2B enterprise applications—built for scale, security, and speed.
• Drive the evolution of our multi-tenant SaaS platform, ensuring robust data isolation, fine-grained permissions, and seamless performance at scale.
• Define and uphold SLAs/SLOs for latency, throughput, and reliability. Build resilient systems with proactive monitoring, alerting, and automated failover.
• Lead infrastructure automation and CI/CD initiatives, optimizing for both velocity and cost-efficiency using AWS tooling.
• Champion engineering excellence through test-driven development, thoughtful code reviews, and a relentless focus on quality.
• Collaborate with cross-functional teams to design and develop APIs and backend services.
• Communicate with clarity and purpose—aligning engineering execution with product vision and business outcomes. \Build with security at the core: implement encryption, secure data handling, and compliance-ready architecture that earns trust at every layer.
  
  
  

Requirements

• Bachelor's, Master's, or Ph.D. degree in Computer Science, Engineering.
• 7+ years in experience in backend software engineering, at least 4 years working with AWS.
• Experience with OAuth2/OpenID Connect, SAML, LDAP
• Designing isolated schemas, partitioned data stores, or sharing strategies
• Expertise in AWS core services (e.g., EC2, CloudFormation, Lamda, API Gateway, etc.).
• Strong programming skills in Python (optional: C/C++, Java- / Typescript).
• Proven experience designing, implementing, and maintaining enterprise-grade B2B applications.
• Strong understanding of API design and database management.
• Demonstrated experience with test-driven development (TDD) and CI/CD.
• Strong problem-solving skills and the ability to think critically and creatively.
• Excellent teamwork and communication skills, with a focus on collaboration and knowledge sharing.
• A strong sense of ownership and responsibility.
• Confidence in your abilities, balanced with humility and a willingness to learn from others.
  
  
  

Preferred Skills

• Experience with CPaaS (e.g, Twilio, Plivo).
• Experience in the construction industry or related fields.
• Experience with agile development methodologies.
  
  
  

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.