Omar Sabbagh
Hanover
Summary
Professional software developer equipped for this role with strong expertise in.NET technologies, object-oriented programming, and software architecture. Known for effective team collaboration and adaptability, contributing to successful project outcomes and maintaining high standards. Demonstrates proficiency in C#, ASP.NET, and SQL, with focus on delivering robust, scalable solutions. Reliable and results-driven, consistently aligning with evolving project requirements.
Overview
7
7
years of professional experience
Work History
.NET Developer
Mediffox DAN GmbH
11.2023 - Current
- Contributed to the development of a collaboration module built from the ground up, gaining full-cycle experience from architecture and design to deployment.
- Developed microservice-based backend components using ASP.NET Core, applying clean architecture, Specification Pattern, and Dependency Injection for modular and testable code.
- Integrated AWS services, including S3 buckets for file upload and storage functionality.
- Worked with PostgreSQL for relational data management and wrote comprehensive tests using NUnit for unit testing and Gherkin for behavior-driven testing.
- Ensured high code quality and architectural compliance using tools like ArchUnitNET (C# equivalent of ArchUnit) and Stryker.NET for mutation testing.
Full Stack Developer
InTime Express Logistik GmbH
08.2018 - 10.2023
- Developed logistics software using C++/MFC and built mobile apps with Xamarin.Android.
- Supported Business Intelligence efforts by creating dashboards and reports.
- Worked with Oracle Database, optimizing queries and procedures.
- Collaborated with product and QA teams to deliver stable, maintainable solutions.
Education
Apprenticeship - Apprenticeship As Software Development
InTime Express Logistik GmbH
Hanover, Germany05-2021
High School Diploma -
El-Andalus School
Damascus, Syria05-2014
Skills
- Entity framework
- Unit testing
- Dependency injection
- Swagger documentation
- Docker containers
- NUnit framework
- Xamarin mobile development
- RESTful services
- Continuous deployment
- Continuous integration
- C# programming
- NET development
- Microsoft ASPNET
- Amazon web services
Projects
Designing and developing SwiftOrder, a full-stack restaurant management platform with modular architecture and scalable domain modeling. The system covers customer operations (menu browsing, ordering, reservations), an admin panel, and dedicated views for kitchen and front-desk operations.
- Built with ASP.NET Core and Entity Framework Core, applying Clean Architecture and Domain-Driven Design (DDD) principles.
- Implemented many-to-many relationships, Specification Pattern, AutoMapper, JWT-based authentication, and role-based authorization.
- Applied FluentValidation for input validation and Bogus for structured data seeding within a dedicated seeding project.
- Developed frontend using Angular and NgRx for state management, with NSwag for API client generation.
- Integrated GPT-based AI assistant to provide restaurant administrators with automated business reports and actionable improvement suggestions.
Timeline
.NET Developer
Mediffox DAN GmbH
11.2023 - Current
Full Stack Developer
InTime Express Logistik GmbH
08.2018 - 10.2023
Apprenticeship - Apprenticeship As Software Development
InTime Express Logistik GmbH
High School Diploma -
El-Andalus School
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