Systems, taken apart.
Backend systems I've built in production, most recent first. The lead piece is a full teardown; the rest give the shape and the stack.
Pass Gallery migration
A resumable, distributed pipeline that moves 500k+ images per client between gallery platforms in under 24 hours. It preserves folder structure and metadata, and recovers from mid-run failure without restarting the whole job.
Paismo: Nexus API & HRMS backend
A multi-tenant HRMS backend and public workforce API covering payroll, time & attendance, leave, and document generation, with bi-directional accounting sync.
Furniture Clinic data pipelines
Automated ingestion of 30,000+ Amazon orders per month, pulled from Seller Central and the Advertising API into a unified MongoDB store that feeds live Power BI reporting.
European Outdoors
A warehouse-management backend that keeps inventory and orders in sync in real time across Shopify, Amazon Seller Central, and Amazon Vendor Central, normalizing three different data formats into a single stock view.
Pro Seller Tools
A MERN application for Amazon sellers that pulls SP-API and Advertising API data into ad-performance dashboards and automated financial tracking for fees, cost of goods, and net margin.