Available for senior engineering roles & consulting

Raihan Uddin

Tech Team Lead — Senior Software Engineer — System Architect

8+ years engineering enterprise systems used by real businesses — from pharmaceutical supply chains and ERP platforms to AI-driven inventory forecasting engines. Based in Dhaka, Bangladesh. Building for scale.

View My Systems Get in Touch GitHub
8+
Years Experience
7
Enterprise Systems
5+
Industries Served
1M+
Lines of code written
Scroll
About

Building systems,
not just code

I'm a Tech Team Lead and Senior Software Engineer with over 8 years of experience building enterprise-grade platforms across pharmaceutical, healthcare, hospitality, and logistics industries.

My work sits at the intersection of engineering and product — I don't just write code, I design systems that solve real business problems at scale. From leading cross-functional development teams to architecting distributed ERP platforms, I build things that matter.

🏗️
System Architecture Designing scalable, maintainable architectures for complex business domains
👥
Engineering Leadership Leading teams, setting technical direction, and driving delivery excellence
🤖
AI-Driven Systems Applying forecasting models and ML to real-world supply chain problems
📦
Domain Expertise Pharmaceutical, healthcare, retail POS, cinema, parking & automotive ERP
8+
Years of production engineering
7
Enterprise platforms shipped
5+
Industries served end-to-end
☕
Coffees consumed building all this
8
Engineers led in current team
AI
Forecasting engine built from scratch
Systems I've Built

Real platforms.
Real businesses. Real impact.

Every system here is in active production — not a side project or a demo. These handle real transactions, real inventory, and real business operations daily.

💊
Live in Production

MedBox

B2B pharmaceutical supply chain platform connecting distributors, wholesalers, and retail pharmacies. Features multi-tier ordering, real-time inventory tracking, credit management, route-based delivery optimization, and automated reorder triggers. Handles thousands of SKUs and daily transactions across the pharmaceutical distribution network.

Laravel PHP MySQL REST API Nginx Linux Cloudflare
📈 Current role: Lead architect & team lead — designing the full platform, managing development team, and driving product roadmap.
🏪
Live

Medipos

Retail POS system purpose-built for pharmacies. Manages medicines with expiry tracking, batch management, barcode scanning, multi-store sync, and insurance claims processing. Deeply integrated with supplier ordering workflows.

Laravel MySQL JavaScript Barcode API
🏥 Deployed at retail pharmacy chains
🏭
Live

Pharmaceutical ERP

Full-stack ERP covering procurement, inventory management, CRM, supply chain tracking, accounts receivable, and multi-warehouse operations. Custom-built for pharmaceutical distributors with regulatory compliance features.

Laravel Yii MySQL Linux
📦 Manages 10,000+ SKU catalog with full audit trail
🛒
Live

MediCart

Healthcare e-commerce platform for medicine ordering, prescription management, and home delivery logistics. Consumer-facing with pharmacy backend integration, stock visibility, and real-time order tracking.

Laravel MySQL JavaScript Payment API
🚚 Consumer health e-commerce with delivery logistics
🎬
Live

Lion Cinemas

Cinema ticketing and management platform. Real-time seat selection, show scheduling, online & kiosk ticketing, concession POS, and reporting dashboard. Built for multi-screen complexes with high-concurrency seat locking.

PHP Laravel MySQL Real-time
🎟️ Handles concurrent seat booking under peak load
🅿️
Live

Lion Parking

Parking automation platform with barrier gate integration, vehicle entry/exit tracking, automated billing, monthly pass management, and real-time occupancy monitoring. Hardware-integrated for physical barrier control.

PHP MySQL Hardware API IoT
🚗 Physical hardware integration with barrier gate control
🔧
Live

Workshop ERP

Vehicle inventory and workshop management system for automotive service centers. Covers job card management, spare parts inventory with auto-replenishment, service scheduling, technician assignment, customer vehicle history, and integrated billing. Reduces parts downtime through predictive restocking based on service patterns.

Laravel MySQL JavaScript SMS API Linux
⚙️ Full vehicle lifecycle management from check-in to delivery — with spare parts forecasting reducing dead stock.
Engineering Approach

How I think about building software

Good engineering is not just about writing code that works — it's about building systems that last, teams that ship, and products that scale.

01

Design for Scale First

Every system I build is designed to handle 10x the current load. Database schemas, API contracts, and service boundaries are chosen with growth in mind — not retrofitted later.

02

Solve the Business Problem

Technology is a tool. I invest time understanding the actual business domain before writing a line of code. The best technical solution serves the business outcome.

03

Obsess Over Performance

Query optimization, indexing strategies, caching layers, and efficient data structures. I treat slow systems as bugs. Every millisecond at scale has business cost.

04

Automate the Repetitive

Manual processes are failure points. I identify repetitive workflows and automate them — inventory alerts, reorder triggers, report generation, deployment pipelines.

05

Make the Invisible Visible

Dashboards, analytics, and reporting transforms raw data into business insight. I build systems where operators always know what's happening and why.

06

Build for Reliability

Enterprise systems cannot go down. I design for fault tolerance, implement proper error handling, and build monitoring in from day one — not as an afterthought.

07

Lead Through Clarity

As a team lead, I communicate technical decisions in plain language, break down ambiguous requirements, and create systems that other engineers enjoy working in.

08

Own the Full Stack

From Linux server configuration and Nginx setup to database design, API architecture, and frontend integration — I understand every layer and can work at any level.

AI & Forecasting Engine

Predicting medicine demand
before it happens

One of my most impactful engineering challenges: building an AI-driven inventory forecasting system for pharmaceutical distribution. Traditional reorder systems react to stockouts. Mine predicts them — using historical sales data, seasonal patterns, and demand signals to recommend optimal stock levels weeks in advance.

SARIMA time-series forecasting models trained on medicine sales history
Seasonal demand signal detection (disease patterns, weather, festivals)
Per-SKU and per-territory demand planning at scale
Automated reorder recommendation engine integrated into ERP
Dead stock and overstock prevention through predictive alerts

Forecasting Pipeline

📊
Sales History Ingestion
Collect 12–24 months of per-SKU, per-territory transactional sales data from ERP
🔍
Signal Detection
Identify seasonal patterns, demand spikes, and external signals (disease cycles, market trends)
🤖
SARIMA Model Inference
Seasonal ARIMA models compute 4–12 week forward demand forecast per SKU
⚖️
Safety Stock Calculation
Compute optimal reorder quantities accounting for lead time, variability, and service-level targets
📦
Purchase Order Recommendations
Automated PO suggestions surfaced in ERP dashboard — human-reviewed and one-click approved

Result

Significant reduction in stockouts and dead stock. Procurement teams now plan proactively instead of reacting to shortages.

Technology Stack

Tools I build with

Technologies chosen for production reliability, not just trends.

Backend
🐘
PHP
L
Laravel
🧩
Yii Framework
🔌
REST APIs
📬
Queue Systems
📋
Webhooks
Database & Storage
🗄️
MySQL
⚡
Query Optimization
📇
Indexing Strategies
💾
Redis Cache
🔄
Database Replication
Infrastructure & DevOps
🐧
Linux (Ubuntu/CentOS)
⚙️
Nginx
🛡️
Cloudflare
🐳
Docker
🔒
SSL / Security Hardening
📊
Server Monitoring
Frontend
🌐
JavaScript (ES6+)
💡
jQuery
🎨
Admin Dashboards
📱
Responsive UI
📈
Data Visualization
AI & Data Science
🧠
SARIMA Forecasting
📉
Time Series Analysis
🔮
Demand Forecasting
📦
Inventory Optimization
🐍
Python / Pandas
Experience

Career Timeline

A track record of growing through increasingly complex engineering challenges — from individual contributor to technical leader.

PulseTech Ltd.
Senior Software Engineer / Tech Team Lead
2020 — Present

Leading the design and development of the MedBox B2B pharmaceutical supply chain platform. Managing the engineering team, defining technical architecture, and driving product roadmap execution. Built and shipped multiple enterprise systems serving real businesses across Dhaka and beyond. Introduced AI-powered inventory forecasting to reduce stockouts in pharmaceutical distribution.

Team Lead System Architecture Laravel AI Forecasting B2B Platform DevOps
Multibrand Infotech
Senior Programmer
2017 — 2020

Developed and maintained complex web applications and ERP systems for enterprise clients. Took ownership of full project lifecycles from requirements gathering through delivery. Built Lion Cinemas ticketing platform and Lion Parking automation system. Grew into a senior role with responsibility for junior developer mentorship.

PHP / Laravel ERP Systems Ticketing Platform MySQL Mentoring
SBIT Institute
PHP Trainer & Developer
2016 — 2017

Trained aspiring developers in PHP, MySQL, and web application development. Designed curriculum, conducted hands-on workshops, and mentored students through their first professional projects. Building strong teaching foundations deepened my own engineering fundamentals.

PHP MySQL Training Curriculum Design Mentoring

@raihan-uddin

Building in public. Open to collaboration on interesting engineering problems.

GitHub contribution chart for raihan-uddin
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What I'm Building Next

The next chapter

I'm actively exploring the intersection of AI, automation, and enterprise systems. These are the problems I'm most excited to work on.

AI-Driven Supply Chain Intelligence

Taking the SARIMA forecasting work further — building a full intelligent supply chain layer that combines multiple ML models, external demand signals, and real-time market data to create truly autonomous procurement recommendations.

AI / ML

Business Process Automation Platform

Building a no-code/low-code workflow automation layer on top of ERP systems — allowing business users to define automated rules, approvals, and alerts without writing code. Reducing manual processes by 80%.

Automation

Intelligent ERP for SMEs

Most enterprise ERP platforms are built for corporations. I want to build a modern, affordable, AI-assisted ERP for small and medium businesses in South Asia — starting with pharmaceutical and healthcare distribution.

Product

Real-Time Inventory Intelligence

IoT-enabled warehouse management where physical inventory is automatically synchronized with digital records in real time — using RFID, barcode scanning, and edge computing to eliminate manual stock counts.

IoT / Real-time

Multi-Tenant SaaS ERP

Evolving MedBox from a single-tenant platform to a multi-tenant SaaS model — allowing pharmaceutical distributors across the region to onboard rapidly with isolated data, configurable workflows, and shared infrastructure.

SaaS / Architecture

Engineering Culture & Team Building

Scaling my experience mentoring developers into a formal engineering culture initiative — code standards, architecture decision records, onboarding systems, and technical growth frameworks for engineering teams.

Leadership

Let's build something
that matters.

I'm open to senior engineering leadership roles, complex system design challenges, and consulting on enterprise platform architecture.

Send me an email GitHub Profile

📍 Dhaka, Bangladesh  ·  Open to remote & relocation  ·  UTC+6