Sr Software Engineer

LAM Lennar Associates Mgmt LLC; Town of Florida (NY); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health insurance

401(k) Retirement Plan

Paid parental leave

Education assistance

Adoption assistance

Home purchase discounts

Job summary

Lennar is seeking a Sr Software Engineer to design, develop, and evolve enterprise-grade applications, integrations, and MCP servers. You will lead AI infrastructure on AWS, drive full-stack development with TypeScript/React and Go, and own production readiness with observability, security, and performance.

You will mentor engineers, partner with product stakeholders, and contribute to CI/CD pipelines and IaC templates.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field and 5+ years of software development.
• Expert-level proficiency in TypeScript and React with strong Go backend experience.
• Experience with AWS, DevOps, and infrastructure-as-code.
• Proven leadership, mentoring, and cross-team collaboration.
• Experience with ServiceNow, compliance systems, and CI/CD workflows.

Responsibilities

• Lead architecture, design, and implementation of full-stack systems using TypeScript/React and Go.
• Adopt and enforce CI/CD pipelines and templates; develop Terraform modules.
• Partner with central platform teams to influence roadmaps.
• Lead AI product capabilities, AI agents, MCP servers, and LLM features on AWS Bedrock.
• Ensure production readiness: observability, reliability, security, performance.
• Mentor engineers through design reviews and guidance.
• Collaborate with product stakeholders to translate business needs.
• Deploy infrastructure-as-code with Terraform or CloudFormation.
• Instrument observability with OpenTelemetry and structured logging.
• Conduct design reviews and architecture governance.
• Transfer knowledge to platform team via sessions and documentation.

Skills

TypeScript

Go

React

AWS

Terraform

CI/CD

Backstage

Python

Education

Bachelor's degree in Computer Science or related field

Tools

GitHub Actions

CloudFormation

Backstage templates

Job description

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—including 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.

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.

Work Where Everyone’s Included

We’re committed to building and sustaining an inclusive culture where everyone has a seat at the table, and we’re all on a first-name basis. This inclusive culture influences our hiring practices, the communities we serve and how we build better career experiences for all our Associates. It’s why we created our Everyone’s Included Advisory Council, and we’d love for you to be a part of our shared journey.

Join the fun and follow us on social media to see what's happening at our company, and don't forget to connect with us on Lennar: Overview | LinkedIn for the latest job opportunities.

Lennar is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws.

We’re Always Looking Ahead. Want to work in an innovative environment that empowers you to explore your passions? At Lennar, we promote asking questions and working together to solve complex problems. It’s how we’ve become a leader in the homebuilding industry and why our Associates love working here. If you’re interested in helping people find their future homes and, in doing so, build a better future for themselves, then Lennar is the place for you.

Join Our Talent Network

Welcome to the Lennar Community! We are tickled, delighted and happy that you've decided to join our Talent Community! We look forward to connecting about career opportunities at Lennar.