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Lennar

Senior Software Engineer, Fullstack

Lennar

. Design, develop, and maintain back-end and full-stack services, ensuring scalability, performance, reliability, and security .

Posted 4/29/2026full-timeIrving • Florida, Texas • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies
GraphQL.NETSQL

About the role

Key responsibilities & impact
  • Design, develop, and maintain back-end and full-stack services, ensuring scalability, performance, reliability, and security
  • Write clean, maintainable, and efficient code, following best practices and coding standards
  • Build robust back-end services using .NET and implement API layers leveraging GraphQL
  • Participate in technical design reviews, providing feedback and recommendations to improve system design and code quality
  • Develop and execute unit tests, integration tests, and automated tests to ensure software quality
  • Collaborate with product managers, designers, and other engineers to deliver high-quality features and enhancements
  • Mentor and guide junior engineers, sharing knowledge and best practices to help them grow in their roles

Requirements

What you’ll need
  • Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience
  • Minimum 5-7 years in software engineering, with a strong emphasis on back-end and full-stack development across modern web platforms
  • Proven experience building scalable services using .NET, including API design and implementation with GraphQL and REST
  • Strong familiarity with relational data modeling and SQL Server, plus experience integrating with CMS platforms
  • Comfortable working in agile environments, adapting quickly to evolving requirements and priorities
  • Strong analytical skills with a detail-oriented mindset and a proactive approach to ownership and accountability
  • Excellent verbal and written communication skills, with the ability to collaborate effectively across cross-functional teams
  • Self-starter with a passion for technology, continuous learning, and driving projects forward with minimal supervision
  • Committed to delivering high-quality, secure, and maintainable software solutions with professionalism and accountability

Benefits

Comp & perks
  • robust health insurance plans, including Medical, Dental, and Vision coverage
  • 401(k) Retirement Plan, complete with a $1 for $1 Company Match up to 5%
  • Paid Parental Leave and an Associate Assistance Plan
  • Education Assistance Program
  • up to $30,000 in Adoption Assistance
  • three weeks of vacation annually
  • generous Holiday, Sick Leave, and Personal Day policies
  • New Hire Referral Bonus Program
  • significant Home Purchase Discounts
  • unique opportunities such as the Everyone’s Included Day

ATS Keywords

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Hard Skills & Tools
.NETGraphQLRESTSQL Serverunit testingintegration testingautomated testingback-end developmentfull-stack developmentrelational data modeling
Soft Skills
analytical skillsdetail-orientedproactiveverbal communicationwritten communicationcollaborationmentoringownershipaccountabilityself-starter
Certifications
Bachelor’s degree in Computer ScienceBachelor’s degree in Engineering