Matiur Rasel MatiurRasel

Hi 👋, I'm Matiur Rasel

Senior .NET Engineer · ERP & SaaS Systems · Architecture, Security & Performance

👨‍💻 About Me

I'm a Senior .NET Engineer with extensive experience building, modernizing, and maintaining business-critical ERP, education, and attendance systems.

My primary focus is the Microsoft / .NET ecosystem, with a strong emphasis on backend engineering, SQL Server, API design, enterprise application architecture, security, performance, and legacy system modernization.

I enjoy working on systems where business rules, reliability, and maintainability matter more than simply writing code.

🔭 What I'm Currently Working On

🏫 CloudCampus24 (CC24) — a multi-tenant school management SaaS platform for educational institutions in Bangladesh, built on ASP.NET Core Clean Architecture (Razor MVC frontend + separate backend API, SQL Server 2019+)
💰 CC24's Fees Module — invoice generation, dues tracking, fee schedules, collections, and permission-controlled student portals
🔐 Post-incident application & database security hardening (SQL injection defense, production DB protection)
⚡ Performance optimization and caching across production services
🔄 Legacy .NET 4.8 MVC → .NET 8 modernization, including a legacy Educational Institute Management System (EIMS) serving 200+ institutions across Bangladesh
🌐 REST APIs, microservices, and integration services
🤖 Refining an AI-assisted development workflow (Claude Code, GitHub Copilot) for Clean Architecture .NET projects

🧠 Engineering Interests

Enterprise Software Architecture
Legacy System Modernization
Domain & Business Logic Design
Application Security
SQL Server Performance & Database Engineering
API Architecture
Distributed Systems
Caching & Performance Engineering
SaaS & Multi-Tenant Systems
AI-Assisted Software Engineering

🛠️ Core Technology Stack

Backend

C# · .NET (Framework 4.8 → .NET 8) · ASP.NET MVC · ASP.NET Core · ASP.NET Web Forms · REST APIs · Entity Framework Core · Dapper · Clean Architecture

Frontend

Angular · TypeScript · JavaScript · Razor MVC · HTML5 · CSS3 · Bootstrap · Tailwind CSS

Database & Data

Microsoft SQL Server · T-SQL · Stored Procedures · EF Core · Dapper · MySQL · SQLite · Redis

Infrastructure & Tools

Docker · IIS · Windows Server · Git · GitLab · GitHub · Cloudflare · Load Balancing · CI/CD

Reporting & Documents

Crystal Reports · RDLC · QuestPDF · PDF Generation · Enterprise Reporting

AI-Assisted Engineering

Claude Code · GitHub Copilot / Copilot Pro · Roslyn MCP tooling · Spec-driven AI implementation workflows

🏗️ Areas of Experience

Enterprise ERP
    ├── Education Management Systems
    ├── Attendance & Workforce Systems
    ├── Business Process Automation
    └── Multi-Database / Multi-Tenant SaaS Applications

Backend Engineering
    ├── .NET / ASP.NET (Framework & Core)
    ├── REST APIs
    ├── Microservices
    ├── Background Processing (Hangfire)
    └── Integration Services

Database Engineering
    ├── SQL Server
    ├── T-SQL
    ├── Stored Procedures
    ├── Query Optimization
    └── Database Security

Engineering Quality
    ├── Security
    ├── Performance
    ├── Caching
    ├── Refactoring
    └── Legacy Modernization

📌 Featured Work

Some of the areas I have worked extensively on:

CloudCampus24 (CC24) — multi-tenant school management SaaS, including the Fees Module: invoice generation, dues/collections, fee schedules, recurring extras, remissions, and UBAC-based access control on student portals
Education ERP & EIMS — large-scale education management system serving 200+ institutions, plus broader ERP business workflows
Attendance Platforms — attendance processing, NFC hardware integration R&D (ACR122U), notifications, reporting, and SaaS workflows
Legacy Modernization — refactoring and modernizing long-running .NET 4.8 MVC enterprise applications toward .NET 8
API & Microservices — service-oriented APIs, background job processing, and system integrations
Enterprise Reporting — Crystal Reports, RDLC, and modern PDF/report generation
Application Security — SQL injection prevention and post-incident hardening, authorization, secure data access, and production hardening

🎓 Certifications

Microsoft Certified Professional (MCP)
Microsoft Certified Technology Specialist (MCTS)
Microsoft Certified Professional Developer (MCPD)
Microsoft Certified Solutions Associate (MCSA)

🌱 Currently Exploring

Modern .NET (10) · Cloud Architecture · DevSecOps · Linux for DevOps · Kubernetes · Distributed Systems · Performance Engineering · AI-Assisted Software Engineering

💬 Ask Me About

C# · .NET · ASP.NET MVC/Core · SQL Server · ERP & SaaS Architecture · APIs · Attendance Systems · Legacy Modernization · Application Security · Performance · AI-Assisted Development Workflows

📫 Connect With Me

📧 Email: matiurrasel1002@gmail.com

⚡ Fun Fact

I enjoy turning complex legacy business systems into simpler, maintainable software.

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