Projects

A 13-part engineering series on treating loading, responsiveness, and stability as product features—and protecting user-perceived performance under marketplace scale and AI workloads.

Start the 13-part performance series

From Kayra Export

Capture is easy; finalization is hard

Distributed Payment Engine

How I closed the gap between capture and complete in a checkout payment engine with outbox, inbox, reconciliation, and effectively-once defenses.

Read the 22-part technical case study

From Kayra Export

When a shared CRUD model breaks under growth

CQRS (Command Query Responsibility Segregation) — Anatomy of Decisions

Command/query separation, outbox, and production recovery when orders, stock, and reporting can no longer share one model.

Start the CQRS series

From ABC Logistics

One panel does not scale; independent deploys do

Logistics Micro Frontend Platform (Module Federation)

How I split a logistics ops surface with Module Federation into a shell, auth remote, and feature remotes to shrink blast radius.

Read the 10-part MFE (Module Federation) case study

From ABC Logistics

Is the vehicle waiting — or is the record?

Fleet Wait Geofence

How I built waiting truth on the map from a telematics feed and configurable circle geofences (km_metric).

Read the 8-part geofence case study

From ABC Logistics

Partner capacity is not CRUD (Create, Read, Update, Delete)

Partner Ferry Booking Desk

How I built a ferry booking desk with ticket lifecycles, discount workflows, and a booking remote that embeds in a shell and runs standalone.

Read the 8-part booking case study

From ABC Logistics

Map, CMS (Content Management System), and notifications share one ops truth

Logistics Ops Control Plane

How I kept map-first expeditions, CMS-like content, push admin, and an ERP edge on a deliberate control plane beside the MFE (Module Federation) estate.

Read the 8-part control plane case study

From ABC Logistics

ERP (Enterprise Resource Planning) MySQL is not an analytics store

Logistics Polyglot Data Platform

How I cleansed internal-ERP MySQL into PostGIS, used MongoDB for telemetry and Elasticsearch for ops search across multi-node clusters, and served clean reads to frontends.

Read the 10-part data platform case study

From ABC Logistics

Recommended route ≠ driver preference

Fleet Route Intelligence ML (Machine Learning)

How I used EDA (Exploratory Data Analysis), scikit-learn/PyTorch, OSRM (Open Source Routing Machine), and foundation-model APIs to measure wait hotspots, km extension, fuel waste, and delay — then served them to the map UI.

Read the 10-part route intelligence case study

From ABC Logistics

A notebook is not an API; pipelines need security

Logistics Django API (Application Programming Interface) & Delivery

How I bound a Django analysis API to MFE (Module Federation)/control-plane contracts, shipped via self-hosted GitLab CE → EC2, and embedded continuous ProjectDiscovery-style scanning in delivery.

Read the 8-part API & delivery case study

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