C#/.NET Backend & API Developer | Cloud Integration & DevOps
Aktualisiert am 02.06.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 15.06.2026
Verfügbar zu: 100%
davon vor Ort: 100%
C# / .NET
REST API Development
SQL
.NET Core
ASP.NET
Backend Development
Web API
Microsoft SQL Server
MySQL
Entity Framework
DevOps
CI/CD
Infrastructure as Code (IaC)
Git
Docker
Cloud Computing
Azure
English
C1? Professional Working Proficiency
German
B1/B2 (B2 course in progress)
Arabic
Muttersprache

Einsatzorte

Einsatzorte

Deutschland
möglich

Projekte

Projekte

2 years 5 months
2024-01 - now

Built and launched a scalable backend platform

Freelance Backend Software Engineer ASP.NET Core PostgreSQL Redis ...
Freelance Backend Software Engineer
  • Built and launched a scalable backend platform for a German cardiology practice? REST APIs, appointment workflows, and database architecture serving ?2,000 patients.
  • Architected a microservices-based e-commerce platform using ASP.NET Core and PostgreSQL, supporting 5,000+ products with response times under 200ms.
  • Designed and implemented workflow orchestration across microservices, enabling dynamic order processing and graceful failure handling.
  • Developed stateful backend services to manage multi-step business processes and adaptive request handling.
  • Built automated CI/CD pipelines with validation and rollback strategies, reducing deployment time from hours to under 15 minutes.
  • Implemented secure authentication and authorization layers using JWT and BCrypt.
ASP.NET Core PostgreSQL Redis RabbitMQ YARP Docker JWT REST APIs
Independent
Berlin, Germany
5 years
2019-01 - 2023-12

Designed and maintained enterprise-grade backend systems

Backend Software Engineer .NET ASP.NET Core C# ...
Backend Software Engineer
  • Designed and maintained enterprise-grade backend systems using .NET / ASP.NET Core for government-scale workloads.
  • Migrated monolithic systems to Docker-based microservices on Azure, reducing infrastructure costs by 30%.
  • Built scalable RESTful APIs handling high-volume government transactions with consistent SLAs.
  • Designed event-driven workflows using Apache Kafka, enabling real-time processing and system automation.
  • Improvedsystem reliability to 99.9% uptime through resilient architecture, observability, and proactive monitoring.
  • Developed automated CI/CD pipelines, shortening release cycles and improving delivery speed.
  • Mentored junior developers on clean code, design patterns, and microservices best practices.
.NET ASP.NET Core C# SQL Server Azure Docker Kafka REST APIs Microservices
National Information Center (NGIC)
Cairo, Egypt
6 years 6 months
2012-07 - 2018-12

Developed backend services

Junior Backend Software Engineer ASP.NET MVC C# SQL Server ...
Junior Backend Software Engineer
  • Developed backend services for large-scale government platforms using ASP.NET MVC and C#.
  • Built HR and payroll systems used by 500,000+ users across multiple government departments.
  • Delivered workflow automation solutions, reducing manual operations by 85%.
  • Optimized SQL Server queries and stored procedures, improving reporting performance by 40%.
  • Led database migration from IBM DB2 to SQL Server with zero-downtime cutover.
  • Integrated Azure Blob Storage for document handling and unstructured data.
ASP.NET MVC C# SQL Server IBM DB2 Azure Blob Storage T-SQL
National Information Center (NGIC)
Cairo, Egypt

Aus- und Weiterbildung

Aus- und Weiterbildung

02/2025

M.Sc. in Computer Science

GISMA University of Applied Sciences


2020

Master of Business Administration (MBA)

ESLSCA Business School


05/2009

B.B.A.? Information Technology Specialization

Helwan University

Kompetenzen

Kompetenzen

Top-Skills

C# / .NET REST API Development SQL .NET Core ASP.NET Backend Development Web API Microsoft SQL Server MySQL Entity Framework DevOps CI/CD Infrastructure as Code (IaC) Git Docker Cloud Computing Azure

Produkte / Standards / Erfahrungen / Methoden

PROFESSIONAL SUMMARY

Backend Software Engineer with extensive experience architecting and delivering scalable, distributed systems in C# and .NET / ASP .NET Core across enterprise, government, and healthcare domains. Specialized in microservices architecture, event-driven systems, REST APIs, and cloud-native development on Microsoft Azure. Proven track record of building reliable platforms with 99.9% uptime, reducing cloud infrastructure costs by 30%, modernizing legacy systems, and mentoring engineering teams. Strong expertise in Docker, Kubernetes, Apache Kafka, RabbitMQ, PostgreSQL, SQL Server, and CI/CD pipelines. M. Sc. in Computer Science from a German university. EU Blue Card eligible, available immediately.


CORE SKILLS

  • Backend Architecture: Microservices, REST APIs, Event-Driven Architecture, Workflow Orchestration, Domain Driven Design, Clean Architecture, CQRS, SOLID Principles
  • API & Gateway: REST APIs, YARP API Gateway, JWT, OAuth, BCrypt, API Versioning, OpenAPI/Swagger
  • Cloud & DevOps: Microsoft Azure, Azure DevOps, Docker, Docker Compose, Kubernetes, CI/CD Pipelines, In frastructure as Code, GitHub Actions
  • Messaging & Caching: Apache Kafka, RabbitMQ, Redis, Event Sourcing, Pub/Sub Patterns
  • Frontend (Familiar): React, Vite, Tailwind CSS, Bootstrap
  • Testing & Tools: xUnit, Moq, Git, Postman, Agile/Scrum, TDD, Observability & Monitoring
  • Professional Skills: Problem Solving, Team Leadership, Mentoring, Stakeholder Communication, Resilience, Continuous Learning


KEY PROJECTS

Abosefen E-Commerce Microservices Platform

End-to-end microservices platform built with ASP .NET Core 10, PostgreSQL 16, Redis 7, RabbitMQ, YARP Gateway, React/Vite frontend. Architecture includes 9 microservices (Identity, Catalog, Inventory, Cart, Orders, Payment, Shipping, Admin) running in 13 Docker containers. Implements Clean Architecture, JWT authentication, BCrypt password hashing, and supports both monolith (SQLite) and microservices deployment modes.


Customer Segmentation ML Pipeline (M. Sc. Thesis)

End-to-end ML pipeline applying K-Means and hierarchical clustering on customer transaction datasets. Demonstrates ability to bridge backend engineering with data-driven business insights.

Programmiersprachen

C#
.NET
ASP.NET Core
ASP.NET MVC
T-SQL
JavaScript
TypeScript
Node.js

Datenbanken

SQL Server
PostgreSQL
MongoDB
IBM DB2
SQLite
Database Design & Optimization
Query Tuning
Stored Procedures

Einsatzorte

Einsatzorte

Deutschland
möglich

Projekte

Projekte

2 years 5 months
2024-01 - now

Built and launched a scalable backend platform

Freelance Backend Software Engineer ASP.NET Core PostgreSQL Redis ...
Freelance Backend Software Engineer
  • Built and launched a scalable backend platform for a German cardiology practice? REST APIs, appointment workflows, and database architecture serving ?2,000 patients.
  • Architected a microservices-based e-commerce platform using ASP.NET Core and PostgreSQL, supporting 5,000+ products with response times under 200ms.
  • Designed and implemented workflow orchestration across microservices, enabling dynamic order processing and graceful failure handling.
  • Developed stateful backend services to manage multi-step business processes and adaptive request handling.
  • Built automated CI/CD pipelines with validation and rollback strategies, reducing deployment time from hours to under 15 minutes.
  • Implemented secure authentication and authorization layers using JWT and BCrypt.
ASP.NET Core PostgreSQL Redis RabbitMQ YARP Docker JWT REST APIs
Independent
Berlin, Germany
5 years
2019-01 - 2023-12

Designed and maintained enterprise-grade backend systems

Backend Software Engineer .NET ASP.NET Core C# ...
Backend Software Engineer
  • Designed and maintained enterprise-grade backend systems using .NET / ASP.NET Core for government-scale workloads.
  • Migrated monolithic systems to Docker-based microservices on Azure, reducing infrastructure costs by 30%.
  • Built scalable RESTful APIs handling high-volume government transactions with consistent SLAs.
  • Designed event-driven workflows using Apache Kafka, enabling real-time processing and system automation.
  • Improvedsystem reliability to 99.9% uptime through resilient architecture, observability, and proactive monitoring.
  • Developed automated CI/CD pipelines, shortening release cycles and improving delivery speed.
  • Mentored junior developers on clean code, design patterns, and microservices best practices.
.NET ASP.NET Core C# SQL Server Azure Docker Kafka REST APIs Microservices
National Information Center (NGIC)
Cairo, Egypt
6 years 6 months
2012-07 - 2018-12

Developed backend services

Junior Backend Software Engineer ASP.NET MVC C# SQL Server ...
Junior Backend Software Engineer
  • Developed backend services for large-scale government platforms using ASP.NET MVC and C#.
  • Built HR and payroll systems used by 500,000+ users across multiple government departments.
  • Delivered workflow automation solutions, reducing manual operations by 85%.
  • Optimized SQL Server queries and stored procedures, improving reporting performance by 40%.
  • Led database migration from IBM DB2 to SQL Server with zero-downtime cutover.
  • Integrated Azure Blob Storage for document handling and unstructured data.
ASP.NET MVC C# SQL Server IBM DB2 Azure Blob Storage T-SQL
National Information Center (NGIC)
Cairo, Egypt

Aus- und Weiterbildung

Aus- und Weiterbildung

02/2025

M.Sc. in Computer Science

GISMA University of Applied Sciences


2020

Master of Business Administration (MBA)

ESLSCA Business School


05/2009

B.B.A.? Information Technology Specialization

Helwan University

Kompetenzen

Kompetenzen

Top-Skills

C# / .NET REST API Development SQL .NET Core ASP.NET Backend Development Web API Microsoft SQL Server MySQL Entity Framework DevOps CI/CD Infrastructure as Code (IaC) Git Docker Cloud Computing Azure

Produkte / Standards / Erfahrungen / Methoden

PROFESSIONAL SUMMARY

Backend Software Engineer with extensive experience architecting and delivering scalable, distributed systems in C# and .NET / ASP .NET Core across enterprise, government, and healthcare domains. Specialized in microservices architecture, event-driven systems, REST APIs, and cloud-native development on Microsoft Azure. Proven track record of building reliable platforms with 99.9% uptime, reducing cloud infrastructure costs by 30%, modernizing legacy systems, and mentoring engineering teams. Strong expertise in Docker, Kubernetes, Apache Kafka, RabbitMQ, PostgreSQL, SQL Server, and CI/CD pipelines. M. Sc. in Computer Science from a German university. EU Blue Card eligible, available immediately.


CORE SKILLS

  • Backend Architecture: Microservices, REST APIs, Event-Driven Architecture, Workflow Orchestration, Domain Driven Design, Clean Architecture, CQRS, SOLID Principles
  • API & Gateway: REST APIs, YARP API Gateway, JWT, OAuth, BCrypt, API Versioning, OpenAPI/Swagger
  • Cloud & DevOps: Microsoft Azure, Azure DevOps, Docker, Docker Compose, Kubernetes, CI/CD Pipelines, In frastructure as Code, GitHub Actions
  • Messaging & Caching: Apache Kafka, RabbitMQ, Redis, Event Sourcing, Pub/Sub Patterns
  • Frontend (Familiar): React, Vite, Tailwind CSS, Bootstrap
  • Testing & Tools: xUnit, Moq, Git, Postman, Agile/Scrum, TDD, Observability & Monitoring
  • Professional Skills: Problem Solving, Team Leadership, Mentoring, Stakeholder Communication, Resilience, Continuous Learning


KEY PROJECTS

Abosefen E-Commerce Microservices Platform

End-to-end microservices platform built with ASP .NET Core 10, PostgreSQL 16, Redis 7, RabbitMQ, YARP Gateway, React/Vite frontend. Architecture includes 9 microservices (Identity, Catalog, Inventory, Cart, Orders, Payment, Shipping, Admin) running in 13 Docker containers. Implements Clean Architecture, JWT authentication, BCrypt password hashing, and supports both monolith (SQLite) and microservices deployment modes.


Customer Segmentation ML Pipeline (M. Sc. Thesis)

End-to-end ML pipeline applying K-Means and hierarchical clustering on customer transaction datasets. Demonstrates ability to bridge backend engineering with data-driven business insights.

Programmiersprachen

C#
.NET
ASP.NET Core
ASP.NET MVC
T-SQL
JavaScript
TypeScript
Node.js

Datenbanken

SQL Server
PostgreSQL
MongoDB
IBM DB2
SQLite
Database Design & Optimization
Query Tuning
Stored Procedures

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