Part-time Senior Full-Stack Engineer (Next.js + MongoDB) ongoing support for an existing app

We run a growing multi-brand wellness and e-commerce business with an in-house web app that handles our CRM, orders, and inventory. It's already built and running on a modern stack. We're looking for an experienced engineer to be our steady senior set of eyes going forward. This is a light, ongoing role, not a heavy weekly grind. Most of the building moves fast with AI tooling on our side. What we need from you is the experienced judgment around it: review changes before they go live, own the deployments, and jump in on the occasional feature or fix. The stack: Next.js + TypeScript MongoDB (Mongoose) on Atlas Vercel hosting Integrations with WooCommerce stores and a few Google services What you'd do: Review code changes before they ship Own and run deployments (staging to production) Build or fix the occasional feature Be reachable when something needs a quick experienced look You're a fit if you: Have shipped and maintained production Next.js + MongoDB apps Are comfortable reviewing and refining AI-assisted code Communicate clearly and reliably Want a long-term, low-volume relationship over a big one-off project The arrangement: roughly 5 to 10 hours a week, flexible, ongoing. Hourly. To apply, please share one example of a Next.js + MongoDB app you've worked on, and a sentence on your experience reviewing or working alongside AI-generated code. A short, specific reply tells us more than a long one.