Engineering Notes
Deep dives on ERP architecture, microservices, Next.js, FastAPI, and shipping production software.
True Landed Cost in Import ERP — One File From PO to Warehouse
Why import teams need purchase, shipping, customs, duty, and warehouse receipt on the same record — and how Customer Flow calculates landed cost in one audit trail.
Telecom User Provisioning — Ordered Steps With Clean Rollback
API-driven UC account creation that runs LDAP, company, extension, and phone profile steps in order — and rolls back cleanly when one step fails.
Translation API at Scale — 100k+ Keys Without Redeploys
Designing a translation hub with Laravel, PostgreSQL, Redis, and a public JSON export API so mobile and web apps fetch language bundles without shipping new builds.
FastAPI + Celery — Background Jobs for Cloud ERP
Using Redis and Celery with FastAPI to run PDF generation, email notifications, and heavy imports without blocking API responses in Customer Flow.
Stripe Checkout in a Microservices Suite — The GSM Pattern
How GSM delivers a focused Next.js payment UI with Stripe Elements, Redis caching, and the Accounts API as the billing source of truth.
WebSockets and Redis Queues — Async UI Without Blocking the API
Building an event gateway with Socket.IO and Redis so long-running reports and bulk jobs notify users in real time instead of timing out the browser.
Prime Alley Microservices — One Product, Four Deployable Services
How we split billing, accounts, payments, and live updates into separate services while keeping a single login and navigation shell for end users.
Production Node.js on Kubernetes — Lessons from Cluster Node
Building a portfolio-grade Node.js e-commerce API with JWT auth, idempotency, circuit breakers, OpenAPI docs, and real Docker/Kubernetes/Terraform deployment.
Next.js BFF Pattern — Fixing Cross-Domain Laravel API Calls
Why we built Billings as a Next.js backend-for-frontend that proxies to Laravel — eliminating CORS, CSRF, and broken session cookies in the browser.
Building Customer Flow — A Multi-Tenant Cloud ERP
How we architected Customer Flow as a multi-tenant ERP for import/export, manufacturing, and enterprise operations with Next.js, FastAPI, PostgreSQL, and Redis.