CRM – Customer Relationship Management System

🏢 Why This Project?

Every growing business reaches a point where spreadsheets and sticky notes can't keep up with customer relationships. This CRM system was built to solve exactly that — providing a centralized platform for managing contacts, tracking sales pipelines, and automating follow-ups.

I chose ASP.NET Core MVC deliberately — to demonstrate full-stack proficiency beyond the PHP/Laravel ecosystem and prove my ability to architect enterprise-grade applications in the .NET stack.

🎯 Feature Deep-Dive

👤 Contact & Lead Management

• 360° customer profiles — contact details, company info, communication history, deal associations
• Lead scoring system — automatic priority assignment based on engagement signals
• Custom fields — extend contact profiles with business-specific data points
• Import/Export — CSV bulk import with field mapping and duplicate detection
• Activity timeline — chronological log of all interactions per contact

📊 Sales Pipeline

• Kanban board view — drag-and-drop deals across pipeline stages
• Pipeline customization — define custom stages matching your sales process
• Deal value tracking — expected revenue, probability, and weighted forecasting
• Win/loss analysis — understand why deals close or fall through

✅ Task & Activity Management

• Task assignment with due dates, priority levels, and team member associations
• Automated follow-up reminders — never let a lead go cold
• Meeting scheduler with calendar integration
• Email templates for standardized outreach communications

🔐 Role-Based Access Control

• ASP.NET Identity integration with custom roles — Admin, Manager, Sales Rep
• Data isolation — sales reps see only their assigned contacts and deals
• Audit logging — track who changed what and when
• Two-factor authentication support for sensitive data protection

⚡ Architecture & Technical Decisions

• Framework: ASP.NET Core 7 MVC with Clean Architecture principles
• ORM: Entity Framework Core with Code-First migrations and Fluent API
• Database: SQL Server with stored procedures for complex reporting queries
• Authentication: ASP.NET Identity with JWT tokens for API endpoints
• Frontend: Bootstrap 5 + jQuery for rapid UI development with AJAX-powered interactions
• API Layer: RESTful API controllers for future mobile app integration
• Testing: xUnit test suite with in-memory database for integration tests

📊 What This Demonstrates

• 🏗️ Enterprise architecture skills — Clean Architecture, Repository Pattern, Dependency Injection
• 🔒 Security-first mindset — RBAC, audit trails, data encryption at rest
• 📈 Full-stack versatility — equal comfort in C#/.NET as in PHP/Laravel
• 🗄️ Database design expertise — complex relational modeling with 25+ tables
• 📱 API-ready architecture — built for extensibility from day one

🔑 Key Takeaway

Building a CRM from scratch forced me to think like a product architect, not just a developer. Every feature decision had to balance user experience against technical complexity, and every database query had to scale. This project is my proof that I can build production-grade enterprise software, not just CRUD apps.