Sr Software Engineer - Full Stack Developer

Lennar•Irving, TX

20h

About The Position

Lennar is seeking a Senior Software Engineer - Full Stack to serve as a technical leader on a domain product team delivering full-stack business applications and ServiceNow solutions. Product teams own their systems end-to-end using self-service capabilities provided by central platform teams, including IDP templates, shared CI/CD, and reusable infrastructure modules. The role drives architecture within its product domain, promotes effective use of platform capabilities, provides feedback to platform teams, and mentors engineers. The engineer leads full-stack development using TypeScript, React, and Go; owns complex ServiceNow initiatives and enterprise integrations; and leads development of agentic and AI capabilities such as AI agents, MCP servers, and LLM-powered features. The role is accountable for production readiness, including observability, reliability, security, and performance, and works with product stakeholders to turn business needs into scalable technical solutions. Lennar describes itself as one of the nation's leading homebuilders and a Fortune 500 company. It emphasizes quality homes, customer service, community involvement, and opportunities for Associate growth.

Requirements

Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
At least 6 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, including driving projects end-to-end, setting standards, and mentoring engineers.
Excellent communication skills with technical and non-technical audiences.

Nice To Haves

Proven ServiceNow development and integration experience; described as highly preferred.
Deep CI/CD expertise, such as GitHub Actions or similar; described as highly preferred.
Strong infrastructure-as-code expertise, such as Terraform or similar; described as highly preferred.
Experience self-serving through internal developer portals such as Backstage, including golden paths, software templates, and service catalogs.
Production experience building agentic/AI systems, including AI agents, MCP servers, and LLM applications; hands-on AWS Bedrock experience is a strong differentiator.

Responsibilities

Lead architecture, design, and implementation of full-stack systems using TypeScript/React and Go.
Own complex ServiceNow development initiatives, including custom applications and enterprise integrations within the domain.
Drive adoption of self-service platform capabilities, including IDP templates such as Backstage, shared CI/CD pipelines, and Terraform modules; establish team standards for their use.
Partner with central platform teams by providing feedback, influencing roadmaps, and contributing improvements to shared templates and modules where appropriate.
Lead development of agentic and AI product capabilities, including AI agents, MCP servers, and LLM-powered features; AWS Bedrock is an indicated platform.
Own production readiness for team services, including 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.