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Sr Software Engineer, LCP

We are Lennar

Lennar is a leading homebuilder focused on creating extraordinary experiences for Homeowners, Communities, and Associates. We are a Fortune 500 company consistently ranked among the top homebuilders in the United States.

A Career that Empowers You to Build Your Future

The Sr Software Engineer reports to the Engineering Manager. You will lead the design, development, and evolution of enterprise-grade applications, integrations, and MCP servers. This role requires a hands-on leader to deliver scalable, secure, and business-aligned AI infrastructure on AWS.

Your Responsibilities on the Team

• Lead the architecture, design, and implementation of full-stack systems using TypeScript/React and Go.
• Drive your team's adoption of legal, compliance, and procurement platform capabilities - IDP templates (e.g., Backstage), shared CI/CD pipelines, and Terraform modules - and establish team standards on top of them.
• Partner with central platform teams: provide feedback, influence roadmaps, and contribute improvements to shared templates and modules where appropriate.
• Lead the development of agentic and AI product capabilities - AI agents, MCP servers, and LLM-powered features - ideally leveraging AWS Bedrock, Claude, and OpenAI.
• Own production readiness for your team's services: observability, reliability, security, and performance.
• Mentor and develop engineers through design reviews, pairing, and technical guidance.
• Partner with product stakeholders to translate business needs into scalable technical solutions.
• Deploy infrastructure-as-code using Terraform or CloudFormation.
• Instrument observability using OpenTelemetry tracing and structured JSON logging.
• Conduct technical design reviews and architecture governance.
• Transfer knowledge to the platform team through live sessions and documentation.

Requirements

• Bachelor's degree in Computer Science, Engineering, or related field, or equivalent practical experience.
• 5+ years of professional software development experience, including ownership of production systems at scale.
• Expert-level proficiency in TypeScript and React, and strong backend experience with Go.
• Deep understanding of system design, API architecture, security, and performance optimization.
• Proven success operating in a DevOps/self-service environment where product teams own their infrastructure and delivery pipelines.
• Demonstrated technical leadership: driving projects end-to-end, setting standards, and mentoring engineers.
• Excellent communication skills with both technical and non-technical audiences.
• Experience with ServiceNow, Legal, Compliance and Procurement systems/applications
• Deep CI/CD expertise (GitHub Actions or similar) - highly preferred.
• Strong infrastructure-as-code expertise (Terraform or similar) - highly preferred.
• Experience self-serving through internal developer portals such as Backstage (golden paths, software templates, service catalogs).
• Production experience building agentic/AI systems (AI agents, MCP servers, LLM applications); hands-on AWS Bedrock experience is a strong differentiator.
• Python Mastery: 5+ years of production Python using async frameworks like FastAPI or Starlette.
• TypeScript/React and Go
• AWS Infrastructure: Deep knowledge of IAM role chaining, Secrets Manager, ECR, and VPC networking.

• AI & Agentic Systems: Hands-on experience with Model Context Protocol (MCP) and AWS Bedrock AgentCore.

• Identity & Security: Advanced OAuth 2.0/OIDC execution, including On-Behalf-Of flows and JWT validation.

• Platform Engineering: Experience authoring Spotify Backstage templates and GitHub Actions CI/CD pipelines.

• Enterprise Integration: Proven history of integrating complex REST APIs such as Workday, Salesforce, or ServiceNow.

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.