[Remote] Lead Software Engineer, AI Platform (Remote)

Note: The job is a remote job and is open to candidates in USA. 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. The Lead Software Engineer will lead the design, development, and evolution of enterprise-grade AI solutions and MCP servers, focusing on delivering scalable and secure AI infrastructure on AWS.ResponsibilitiesLead the adoption of ServiceNow and AWS-native AI capabilitiesIdentify opportunities where AI reduces manual effort and improves service outcomesDesign a repeatable, domain-aligned pattern as a Spotify Backstage Software TemplateArchitect production-ready MCP servers with integrated authentication and RBACDevelop reference Python MCP servers for enterprise domains like WorkdayImplement shared authentication libraries for Entra ID and OAuth flowsBuild a tool-accuracy eval harness to validate LLM tool behavior in CIAutomate registration with AWS Bedrock AgentCore GatewayManage container deployment on AWS ECS Fargate using read-only filesystemsDeploy infrastructure-as-code using Terraform or CloudFormationInstrument observability using OpenTelemetry tracing and structured JSON loggingConduct technical design reviews and architecture governanceTransfer knowledge to the platform team through live sessions and documentationSkillsPython Mastery: 7+ years of production Python using async frameworks like FastAPI or StarletteAWS Infrastructure: Deep knowledge of IAM role chaining, Secrets Manager, ECR, and VPC networkingAI & Agentic Systems: Hands-on experience with Model Context Protocol (MCP) and AWS Bedrock AgentCoreIdentity & Security: Advanced OAuth 2.0/OIDC execution, including On-Behalf-Of flows and JWT validationPlatform Engineering: Experience authoring Spotify Backstage templates and GitHub Actions CI/CD pipelinesEnterprise Integration: Proven history of integrating complex REST APIs such as Workday, Salesforce, or ServiceNowExperience: 8+ years of overall IT experienceSpecialization: 6+ years of hands-on architecture and development experienceLeadership: Demonstrated ability to lead complex, enterprise-scale implementationsCommunication: Excellent technical writing skills for runbooks and architecture docsBenefitsRobust health insurance plans, including Medical, Dental, and Vision coverage401(k) Retirement Plan, complete with a $1 for $1 Company Match up to 5%Paid Parental LeaveAssociate Assistance PlanEducation Assistance ProgramUp to $30,000 in Adoption AssistanceUp to three weeks of vacation annuallyGenerous Holiday, Sick Leave, and Personal Day policiesNew Hire Referral Bonus ProgramSignificant Home Purchase DiscountsEveryone’s Included DayCompany OverviewFor more than 70 years, Lennar has been in the business of making homeownership more attainable for more people. It was founded in 1954, and is headquartered in Miami, Florida, USA, with a workforce of 10001+ employees. Its website is http://lennar.com.Company H1B SponsorshipLennar has a track record of offering H1B sponsorships, with 3 in 2026, 23 in 2025, 16 in 2024, 8 in 2023, 6 in 2022, 2 in 2021, 7 in 2020. Please note that this does not guarantee sponsorship for this specific role.