I'm Saad, a Computer Science student from Egypt (Class of 2026) and a freelance developer focused on C#, ASP.NET Core, EF Core, and SQL Server. I build backend-led applications with clear layers, practical database design, and business logic that's easier to understand and maintain.

I care about more than making a feature work: I aim to keep the scope clear, handle edge cases, protect data integrity, and leave clients with code they can continue working on.

Best fit: focused .NET tasks, new API features, database-backed workflows, bug fixes, and improvements to existing applications.

• ASP.NET Core development — REST API endpoints, MVC features, CRUD workflows, and service-layer logic.
• SQL Server & EF Core — relational data access, LINQ queries, migrations/scaffolding, and database-backed workflows.
• Bug fixing & maintenance — reproduce issues, trace the cause, implement a focused fix, and validate affected behavior.
• Architecture & refactoring — practical separation of concerns with layered / 3-tier architecture, dependency injection, and SOLID principles where they fit the project.
• Integrations & tooling — work involving authentication, Redis, Stripe, Docker, and API documentation, depending on the requirements.

1. Clarify first: agree on expected behavior, deliverables, constraints, and acceptance criteria before implementation.
2. Keep changes understandable: favor readable code and an architecture proportionate to the size of the task.
3. Validate the important paths: run relevant builds and tests, and check edge cases within the agreed scope.
4. Communicate clearly: share progress, flag blockers early, and include practical setup or handoff notes.

I take on work that matches my current skills and will be transparent about assumptions, risks, and scope.

A full-stack e-commerce learning project with a layered .NET backend and a separate Angular storefront.

• Product catalog queries, filtering, pagination, basket and order workflows.
• Authentication with ASP.NET Core Identity and JWT.
• Stripe payment-intent integration and Redis-backed basket/cache infrastructure.
• Separate Domain, Application, Infrastructure, and API projects.

Stack: C# · .NET · ASP.NET Core Web API · EF Core · SQL Server · Redis · JWT · Stripe · Angular · Docker

An ASP.NET Core MVC application for day-to-day inventory workflows.

• Manages products, categories, suppliers, customers, purchases, sales, and stock movements.
• Uses a 3-tier structure to separate Web, Business Logic, and Data Access.
• Uses EF Core database-first scaffolding, repository abstractions, and Unit of Work.
• Includes low-stock monitoring, reporting, role-based access, and an optional read-only AI assistant.

Stack: C# · ASP.NET Core MVC · EF Core · SQL Server · Docker

A C# rule-based traffic violation processor designed around separate, extensible violation rules.

• Evaluates speeding and seatbelt observations.
• Keeps individual checks separated behind an interface for easier extension.
• Combines detected violations into fine records and tracks counts by rule.

Stack: C# · .NET · OOP · Interfaces · Strategy-style rule separation

An ASP.NET Core MVC project for employee and department management.

• Implements CRUD and employee search workflows.
• Separates presentation, business logic, and data access.
• Uses EF Core, SQL Server, ViewModels, AutoMapper, and repository abstractions.

Stack: C# · ASP.NET Core MVC · EF Core · SQL Server · AutoMapper

I also work in existing codebases, investigate issues, and submit focused fixes with relevant validation.

See my open-source contribution log →

Backend & data

Engineering & tools

Frontend foundations

I use Angular, React, and Tailwind CSS at a foundational level, with my strongest focus on .NET backend development and database-driven features.

I regularly practice Data Structures and Algorithms to strengthen my debugging and problem-solving approach.

• Data Structures and STL
• Binary Search, Two Pointers, and Sliding Window
• Recursion and Backtracking
• Sorting, Range Queries, and related problem-solving patterns

Have a clearly scoped .NET task or need help investigating an existing application?

• Email: saadelnager333@gmail.com
• LinkedIn: Saad Elnager
• GitHub: Saad-elnagar