Available for senior engineering & architecture roles

Hi, I'm Md. Afzal Hossain.
I architect scalable enterprise systems.

Senior Software Engineer · Technical Lead · Solution Architect with 14+ years designing high-performance, cloud-native applications in .NET Core, RabbitMQ, AWS and Kubernetes.

View Featured Project Download CV Get in touch

14+years experience
20K+users in shipped ERPs
99.9%uptime on cloud platforms
40%tech-debt reduction led

01 — About

Senior engineer who turns complex business problems into clean architecture.

I'm a results-driven Senior Developer based in Dhaka, currently leading technical design at WebAlive (Australia). Over the past 14+ years I've designed and shipped enterprise systems for organisations with 15,000+ employees, customer data platforms ingesting any valid JSON, and AI-powered SaaS products on AWS.

My focus is microservices, event-driven design, performance, and developer experience — bridging business goals with technical reality, mentoring teams, and setting standards that survive the next ten releases.

Solution & Application Architecture
Microservices & Cloud-Native
Event-Driven (RabbitMQ, Redis)
API Design & System Integration
Database Design & Optimization
Docker & Kubernetes
CI/CD & DevOps
Technical Leadership & Mentoring

02 — Tech Stack

Tools I reach for, day in and day out.

Backend & Architecture

.NET Core / C# / ASP.NET
Entity Framework, Web API, gRPC
RESTful APIs, GraphQL, SignalR
RabbitMQ & Event-Driven Design
Microservices & Cloud-Native

Databases & Caching

SQL Server, Oracle 11g
PostgreSQL, MySQL
MongoDB (NoSQL)
Redis (caching)
Partitioning, Sharding, Replication

DevOps & Cloud

Docker & Kubernetes
AWS (S3, Cognito, EC2, Lambda)
CI/CD Pipelines
IIS & Nginx
Linux Server Management

Frontend & Tooling

Angular & Vue.js
TypeScript / JavaScript
AngularJS, Kendo UI, jQuery
CSS3, Bootstrap
Agile / Scrum delivery

03 — Featured Project

Umerang — an enterprise Customer Data Platform built to rival Google Analytics.

umerang.exsited.com

Events ingested 4.82M

Active sources 27

p95 latency 112ms

Role: Solution Architect & Lead Developer

A flexible, schema-less Customer Data Platform that ingests any valid JSON, processes events through a high-throughput RabbitMQ pipeline, and exposes a powerful query/filter API for real-time analytics — designed to compete with Google Analytics for enterprise data integration.

Schema-less ingestion — accept any valid JSON payload, mapped and indexed on the fly without rigid schemas.
Advanced query & filter API — composable endpoints supporting complex retrieval patterns over high-volume data.
Event-driven architecture — RabbitMQ-powered pipeline for real-time, asynchronous processing at scale.
High-performance backend — built in .NET Core with MSSQL, optimised for throughput and low p95 latency.
Enterprise integration — designed as a Google Analytics alternative for businesses needing full ownership of their data.

.NET Core C# Web API RabbitMQ MSSQL Event-Driven

Visit live site Discuss this project

04 — Other Projects

A selection of platforms I've architected and led.

Clubeez

Tech Lead · Solution Architect

Microservices platform for club management — digital passes (Google/Apple Wallet), vouchers, email campaigns, workflow automation, and a form builder for external data capture.

.NET Core
Vue.js
RabbitMQ
SignalR2
MSSQL

Chamera

Tech Lead · Solution Architect

AI-powered school photography SaaS on AWS — automated image processing and recognition, Google/Apple wallet integration, and CDN-backed media delivery via S3.

.NET Core
Angular
AWS S3
RabbitMQ
AI/ML

E-Commerce Data Migration & Integration

Tech Lead · Architect

Plugin framework for seamless data migration across Shopify, WooCommerce and BigCommerce. Subscription lifecycle handling, webhook management, and automated B2B FTP integrations.

.NET Core MVC
AWS S3
SignalR2
MSSQL
Web API

Multi-fabs ERP

Sr. Engineer · Architect

End-to-end ERP for a 15,000+ employee enterprise covering HR, Payroll, Inventory, Production and Finance — built on Oracle 11g with advanced partitioning and indexing.

ASP.NET
Oracle 11g
SignalR2
IIS
Web API

Retail POS System

Developer · Softlink Ltd

Windows desktop point-of-sale platform powering daily operations at Manza, Snil and Butter & Oil showrooms — covering stock-in, customer billing, and a flexible daily-sales reporting suite. In continuous production since 2012.

C#
.NET 3.5
MSSQL 2005
WinForms
VS 2010

Membership Plugin

Developer · Bit Mascot

Multi-tier membership SaaS plugin handling the complete subscription lifecycle — purchase, renewal, upgrade and cancellation — across multiple payment gateways, with template-driven dynamic site and content rendering.

ASP.NET Core
MSSQL
Payment Gateways
Multi-template

EB App — Banglalink Field Ops

iOS Developer · TechnoVista

Field-operations iOS app for Banglalink outreach teams — GPS-tracked client visits, on-site support and feedback, offers, gift & inventory follow-up, with map views and line/bar KPI dashboards.

Swift 5
SwiftUI
Xcode 12
iOS

DGDA Drug Admin

Mobile Developer · TechnoVista

Public-interest cross-platform mobile app for the Directorate General of Drug Administration (DGDA) — citizens report counterfeit medicines, over-pricing and complaints; verify products via barcode/QR scan; search by name, generic or manufacturer; and receive responses directly from regulators.

Swift
Android
iOS
Barcode / QR
Native Mobile

05 — Experience

A decade-plus of shipping software that matters.

May 2022 — Present

Senior Software Engineer / Technical Lead

WebAlive · Australia (Remote)
- Led microservices design in .NET Core, RabbitMQ and Kubernetes.
- Architected a scalable CDP (Umerang) handling high-volume JSON ingestion.
- Cloud-native AWS apps (S3, Cognito, Lambda) at 99.9% uptime.
- Set architecture standards that cut technical debt by 40%.
Aug 2016 — Apr 2022

Analyst & Sr. Software Engineer

MultiTech System Limited · Dhaka
- Designed Multi-fabs ERP (15,000+ employees) — HR, Payroll, Inventory, Production, Finance.
- Oracle 11g optimization with partitioning and indexing.
- Real-time sync via SignalR2 and Web API; load-balanced IIS hosting.
Aug 2012 — Jul 2016

Software Engineer

TechnoVista Limited · Dhaka
- Led system design for Mohammadi Group ERP (10,000+ employees).
- Multi-tier scalable architecture with Angular & ASP.NET MVC.
- Authored technical docs and training materials for end-users.