Lead Software Engineer, Core Platform

About Moon

Moon’s mission is to reinvent the home improvement experience end to end. From AI-driven marketing and in-home 3D design to sales, service, and operations, Moon unifies the entire customer and business journey on a single platform — supercharged by Luna, our proprietary AI engine. Where most operators stitch together disconnected tools that don't understand the homeowner, we're building the unified operating system the industry has never had. We're a rapidly growing team of committed builders, driven to reimagine how this industry sells, designs, and delivers — and to power the next generation of operators, from single-location dealers to national franchise networks.

Moon is an ambitious company reinventing the home improvement experience. We have the unique opportunity to work with market leading customers such as Closet World, Closets by Design, Closet Dimensions, and Brio Water. We build for the home improvement industry from within it.

Role Overview

You will be the technical lead of Moon's core platform: auth and identity, multi-entity tenancy, the entitlements engine, payments and financing APIs, cross-platform communication services, and the databases everything runs on. Every module team builds on the foundation you keep solid.

About the role

• You will join a small, senior platform team as its lead engineer, working with the Senior EM and the Principal Engineer on the contracts, reliability, and data architecture that let small teams ship continuously without colliding.

What you'll do

• Lead the design and build of core services: identity, tenancy, entitlements, payments and financing APIs, messaging buses - and the common shared services every module consumes: email, SMS, voice and communication services, and the client database.
• Own database architecture and performance; uphold demanding reliability commitments.
• Enforce contract-first discipline: versioned APIs, clean deprecation windows, no surprise breaking changes.
• Enforce engineering standards via code review across the application, including proper use of the design system via Storybook.
• Mentor the team's engineers; encode critical business rules as CI-enforced invariants.

Qualifications

• 7+ years of backend engineering with distributed systems in production.
• Deep database and API design experience; payments or fintech integration experience a strong plus.
• Has been the technical lead others calibrate against.
• Pragmatic architecture instincts; ships.