Reef App
Full-scale ERP with advanced task management, role-based access control, and real-time reporting across multiple business units.
Hi, I'm
Diaa Alzuhiri
.NET Developer
.NET backend developer, 5+ years building ERP and CRM systems for real companies in Egypt, Saudi Arabia, and now Lebanon. I focus on clean architecture and code that lasts.
5+Years Experience
12+Projects Delivered
4Companies
∞Clean Code
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About Me
I started out as one of the first developers on a small team at Pestella, and the team just stayed small as the work kept growing. That meant taking on more than writing code pretty fast — architecture decisions, code reviews, eventually running the department by the time I was two years in. We built POS systems, booking platforms, and restaurant apps from scratch.
After that I moved into enterprise ERP and CRM work, first at PEG in Egypt, then ALMANZOOR ALSHAMEL in Saudi Arabia. These days I'm with SoftFlow, a company based in Lebanon, working remotely from Damascus on large-scale projects. I build in .NET, but most of the job is figuring out what the business actually needs and putting together something that still holds up once real users and real data start hitting it. I stick to clean architecture and SOLID mostly because I've seen what happens to a codebase without them once a project grows past its first few months.
Architecture First
Clean, Onion & Modular Monolith patterns
Performance Focused
EF Core optimization, caching with Redis
Delivery Oriented
From requirements to production, on time
Developer.cs
public class Developer
{
public string Name => "Diaa Alzuhiri";
public string Role => ".NET Developer";
public int Years => 5;
public string[] Core => [
"C#", "ASP.NET Core",
"EF Core", "SQL Server"
];
public string[] Values => [
"Clean Architecture",
"SOLID Principles",
"Readable Code"
];
public bool IsAvailable => true;
}Skills & Technologies
What I work with daily — and what I reach for when needed
Core — Daily Use
C#
Core language, LINQ, async/await, OOP, Design Patterns
ASP.NET Core
Web API, MVC, Minimal APIs, Middleware, Dependency Injection
Entity Framework Core
ORM, Migrations, Query optimization, Code-First approach
SQL Server
Schema design, Stored procedures, Query tuning, Indexing
Architecture
Clean, Onion, Modular Monolith, SOLID, DDD fundamentals
REST APIs
API design, versioning, JWT auth, rate limiting, Swagger
Secondary — Working Knowledge
Redis
Caching, session storage
SignalR
Real-time communication, WebSockets, live updates
Docker
Containerization, Docker Compose, deployment
Azure
App Service, Azure SQL, Blob Storage, CI/CD
Git & CI/CD
Git workflows, GitHub Actions, automated pipelines
AI-Assisted Development
Using AI tools day-to-day for coding, debugging, and code review to move faster without sacrificing quality
Frontend — Working Knowledge
React
Components, hooks, state management, REST integration
Next.js
SSR, routing, React-based frontends
TypeScript
Typed JavaScript for safer frontend code
JavaScript
DOM manipulation, ES6+, async/await
jQuery
DOM manipulation, AJAX, legacy integrations
HTML
Semantic markup, accessibility basics
CSS
Responsive layouts, Flexbox, Grid
Bootstrap
Responsive UI components, grid system
Work Experience
Companies & roles that shaped my career
Key Responsibilities & Achievements
- Working remotely with a Lebanon-based team on large-scale software projects
- Contributing across the full development lifecycle, from design through implementation and delivery
- Applying Clean Architecture and modern .NET practices to build scalable backend systems
- Increasingly using AI-assisted development workflows to speed up delivery without cutting corners on code quality
C#ASP.NET CoreEF CoreSQL ServerClean ArchitectureREST API
Key Responsibilities & Achievements
- Led development of multiple ERP systems covering procurement, HR, inventory, and financial modules for Saudi-based clients
- Built and delivered CRM platforms with lead management, client lifecycle tracking, and automated reporting pipelines
- Developed lightweight business applications tailored to specific operational workflows, improving team productivity
- Collaborated remotely with stakeholders across time zones to gather requirements and deliver on schedule
C#ASP.NET CoreEF CoreSQL ServerClean ArchitectureREST APIDocker
Key Responsibilities & Achievements
- Designed and developed enterprise-grade ERP systems handling complex business logic across sales, operations, and finance domains
- Built scalable RESTful APIs consumed by web and mobile clients, applying Clean Architecture and SOLID principles throughout
- Optimized EF Core queries and database schemas, significantly reducing response times on high-traffic endpoints
- Collaborated with cross-functional teams in an agile environment to deliver features within tight release cycles
C#ASP.NET CoreEF CoreSQL ServerClean ArchitectureREST APISOLID
Key Responsibilities & Achievements
- Owned the entire development department — architecture decisions, code reviews, delivery timelines, and team coordination
- Built restaurant management and POS systems with real-time order processing, table management, and kitchen display modules
- Delivered a multi-domain online booking platform for hotel reservations, event halls, and Hajj & Umrah trip packages
- Integrated third-party payment gateways and notification services, adapting each solution to its specific business vertical
C#ASP.NET MVCSQL ServerjQueryREST APIPayment Gateway
Featured Projects
A curated selection of enterprise systems and personal projects built with .NET
Fas App
Comprehensive ERP handling inventory, HR, and finance modules with multi-tenant architecture and custom reporting engine.
Alkharj ERP
End-to-end ERP covering procurement, sales, and warehouse operations with dynamic dashboards and audit trails.
Masar CRM
CRM platform with lead tracking, pipeline management, automated follow-up workflows, and client analytics dashboard.
Enterprise
Rainwater Harvesting Platform
Specialized ERP for managing rainwater projects, field data tracking, contractor assignments, and environmental reporting.
Magic Protection
ERP for a security services company with contract management, guard scheduling, incident reporting, and billing modules.
MyKanban
Kanban board with drag-and-drop task management, team collaboration, and real-time updates. Containerized with Docker.
MyWallet
Personal finance app with expense tracking, budget planning, transaction categorization, and monthly spending analytics.
Daily Tasks Manager
Productivity app with task prioritization, recurring tasks, deadline notifications, and progress reports via REST API.
POS Application
Point-of-sale system with barcode scanning, inventory sync, receipt generation, and end-of-day sales summary reporting.
Client Management
Client lifecycle system with onboarding workflows, contract storage, communication history, and performance metrics.
ECommerce Platform
Full-featured e-commerce backend with product catalog, cart, order processing, payment integration, and admin API.
Let's Build Something
Open to new opportunities, freelance projects, and interesting collaborations. Whether you need a backend system built right or an existing one fixed — let's talk.