Nada AssemSoftware Engineer | Back End Developer (.NET)
SUMMARY

Back End Developer (.NET) with 2+ years of experience building scalable, production-grade solutions in the .NET ecosystem. Skilled in Clean Architecture, Microservices, and SOLID principles, with a proven track record of optimizing SQL Server performance by up to 40% and integrating cloud services and third-party APIs. Focused on writing clean, testable code that solves complex business problems.

Professional Experience
Apr 2026 – Present
Software Engineer | Backend Developer, Nawa Intelligent Systems⁠
  • •Design and develop scalable server-side applications and RESTful Web APIs using C# and .NET Core.
  • •Apply Clean Architecture, SOLID principles, and design patterns to deliver modular, maintainable codebases.
  • •Optimize database performance and application scalability to ensure high reliability under production load.
  • •Integrate third-party APIs and external systems to extend platform functionality.
  • •Review code and troubleshoot production issues alongside the team to maintain delivery quality.
  • •Manage CI/CD pipelines and version control, handling build and deployment workflows.
    • Sep 2024 – Mar 2026

    A technology company specializing in enterprise software solutions.

  • •Built and maintained scalable APIs and microservices using .NET, C#, and Entity Framework Core, supporting POS and CRM systems for 10,000+ active users.
  • •Optimized SQL Server queries and stored procedures, cutting response times by up to 40%.
  • •Integrated AWS SQS and Oracle Simphony to ensure reliable, real-time synchronization between distributed systems.
  • •Designed clean, modular architectures (Clean/Onion Architecture) that improved maintainability and reduced onboarding time for new features.
  • •Delivered testable, maintainable code following SOLID principles, with CI/CD pipelines for automated builds and deployments.
    • Dec 2024 – Dec 2025
    CS Instructor, Almentor⁠
  • •Taught programming and AI fundamentals to 100+ students as part of the Digital Cubs of Egypt Initiative in collaboration with the Ministry of Communications and IT.
    • Jun 2024 – Dec 2024
    Coding Instructor, iSchool⁠

    Teaching the basics of programming and artificial intelligence to 150+ students as part of the Digital Buds of Egypt Initiative (DEMI) in cooperation with the Ministry of Communications and Information Technology, Egypt.

    Nov 2023 – Apr 2024
    Full Stack Developer (.NET), Information Technology Institute (ITI)
  • •Interned as a Full Stack Developer using .NET technology at ITI
  • •Worked on integrating multiple functionalities and enhancing backend services
    • Projects
    Ettijah (Saudi Capital-Market Data & Analytics Platform), A centralized data platform for the Saudi stock market (Tadawul) that automates the collection, validation, and publishing of financial and market data for listed companies. Independently designed, developed, and deployed the entire backend.

    Key Contributions & Features:

  • •Architecture: Built the entire backend single-handedly using a layered, service-oriented architecture and SOLID principles.
  • •Automated Data Pipelines: Developed scheduled background jobs (Hangfire) and browser automation (Playwright) that pull daily prices, indicators, and disclosures from external market-data providers, with retries and duplicate-safe re-runs.
  • •Market-Data Integration: Integrated a third-party provider API to sync corporate actions, dividends, and shareholder data, with automatic company matching, price adjustment, and cross-source deduplication.
  • •Excel Import/Export Engine: Built a bulk Excel/CSV engine (ClosedXML) with multi-level validation and normalization, plus merge rules that protect analyst-entered figures during re-imports.
  • •Document Automation: Automated the download, validation, and archiving of company financial reports to cloud storage (Google Drive, AWS S3), with a summary email after every run.
  • •Research & Collaboration: Delivered shared workspaces with file management, company document libraries, and analyst notes on financial statements, backed by real-time alerts (WebSockets, push, SMS, email) when new data is published.
  • •Performance: Cut response times on multi-year datasets pulled from the legacy database through optimized LINQ/SQL queries, projections, no-tracking reads, and server-side paging and filtering.
  • •Security & Access Control: Implemented JWT authentication, BCrypt hashing, and role-based access control down to module and screen level, with full Arabic/English support.
  • •Deployment: Deployed and maintained the system on AWS EC2 (Windows Server + SQL Server) with Serilog structured logging and Swagger API documentation.

    • Technologies: .NET 10, C#, Entity Framework Core, SQL Server, Hangfire, Playwright, WebSockets, Protobuf, AWS (EC2, S3, SES), Google Drive API, JWT, ClosedXML, Serilog, Layered Architecture, SOLID.

    VOLTSports Hub (Management & Booking System)

    A comprehensive multi-tenant ecosystem designed for managing sports hubs and schools, featuring a centralized Admin Portal, Vendor/Sponsor interfaces, and a Consumer Mobile App. The system streamlines asset rentals, sports academy enrollments, and F&B operations with an integrated digital wallet and loyalty program.

    Key Contributions & Features:

  • •Architecture: Developed a scalable backend using Clean Architecture and SOLID principles for high maintainability.
  • •Core Logic: Built complex booking and scheduling engines with dynamic pricing and multi-parameter validation.
  • •Financial Features: Implemented a Shared Payment system with automated split-bill logic and real-time wallet transactions.
  • •Digital Wallet: Integrated a secure Wallet & Loyalty system for digital payments, top-ups, and automated reward processing.
  • •Data Access: Optimized database performance using EF Core, LINQ, and Repository/Unit of Work patterns for robust transaction management.
  • •Management Portal: Developed a centralized Admin Portal with real-time analytics and role-based access control (RBAC).

    • Technologies: .NET 10, C#, Clean Architecture, Azure, SQL Server, Entity Framework Core, LINQ, Unit of Work, Repository Pattern.

    Sonata (Self Ordering APP)

    A high-performance self-service ordering ecosystem that enables restaurant customers to browse menus, place orders, complete online payments, and track preparation in real-time. The system reduces wait times and automates the end-to-end workflow between the customer and the kitchen.

    Key Contributions & Features:

  • •Self-Service Engine: Developed the core logic for a customer-facing ordering system with support for complex item customizations and modifiers.
  • •Integrated Digital Payments: Implemented secure online payment gateways to facilitate seamless checkout, digital receipts, and instant transaction verification.
  • •Real-time Order Tracking: Built a real-time status update system to synchronize order stages (Pending, Preparing, Ready) between the Kitchen Display System (KDS) and the user.
  • •Menu Synchronization: Engineered an automated synchronization layer to ensure real-time updates for menu availability, pricing, and stock levels from the central database.
  • •Architecture & Performance: Leveraged Clean Architecture to maintain a decoupled system, utilizing EF Core and LINQ for high-speed data retrieval and transaction integrity.

    • Technologies: .NET 8, C#, Microservices, AWS, SQL Server, Entity Framework Core, LINQ, Web API.

    Sonata Dashboard

    A new module has been developed within the Sonata system to enable viewing and exporting of various analytical reports.

  • •Developed high-performance backend APIs using .NET 8, C#, and Entity Framework Core to power data visualization and export functionalities.
  • •Created advanced analytical reports to track sales performance, order trends, and customer engagement insights.
  • •Optimized complex SQL queries and stored procedures, significantly improving system speed and data accuracy.
  • •Implemented role-based access control and dynamic data filtering to ensure secure and personalized user access.
  • •Maintained clean, scalable, and maintainable code architecture, following best practices and development standards throughout the project lifecycle.
    • ACT QR

    ACT QR is a secure online system for managing employee check-in on company buses and monitoring cleaning staff activities using QR codes. It integrates employee data from the Maestro HR system and supports web and mobile app interaction via APIs.

  • •Backend system based on Onion Architecture for modularity and maintainability.
  • •Integrates with Maestro HR system to synchronize employee data accurately and in real-time.
  • •Manages company bus operations by tracking routes and monitoring employee presence via QR code scanning.
  • •Includes a module for cleaning staff to record cleaning tasks through QR scans at designated company locations.
  • •Provides RESTful APIs consumed by web and mobile applications for seamless interaction.
  • •Implements strong authentication and data encryption to ensure security of sensitive information.
  • •Enhances operational efficiency and workforce management with reliable and secure data processing.

    • Sonata (Call Center )

    A new module has been built into the Sonata system to automate and optimize the flow of customer orders from call center agents to restaurant branches through POS integration.

  • •Allows call center agents to receive customer orders and automatically forward them to the restaurant’s point-of-sale (POS) system.
  • •Enables real-time order tracking and status updates to ensure timely delivery and customer satisfaction.
    • Sonata (POS System)

    The Sonata (ACT POS) project is a comprehensive system for managing customer relationships and point-of-sale operations.

  • •Microservices Architecture: Decoupled, modular services that ensure scalability, flexibility, and efficient resource management.
  • •Data Management: Centralized management of all components and functionalities.
  • •Data Migration from the Cloud: Seamless data transfer from cloud systems to local environments.
  • •Data Synchronization with Oracle Simphony: Ensuring consistent integration and syncing with Oracle Simphony for hospitality and restaurant management.
  • •AWS SQS (Simple Queue Service): Reliable message queuing for smooth communication and synchronization between microservices.

    • This project provides a fully managed, integrated solution to streamline POS and CRM operations efficiently.

    Talabat⁠, Online Food Delivery API
  • •Designed and implemented an API using .NET Core, structured with Onion Architecture to ensure separation of concerns and scalability.
  • •Developed features for product management, order processing, and user authentication using JWT.
  • •Leveraged AutoMapper for data mapping, Entity Framework Core with SQL Server for data access, and integrated Swagger for API documentation.
    • Dubaiphone E-commerce, Online Shopping (ITI Graduation Project)
  • •GitHub: Back-end⁠ | Front-end⁠

    • Backend (ASP.NET Web API): Manages core system functions such as user authentication, product catalog, order processing, and secure payments.

    Frontend (Angular): Powers the seamless shopping experience, offering features like language switching and integrated payment systems.

    Admin Dashboard (MVC .NET):

  • •Provides administrators with comprehensive control over user roles, product management, and order tracking.
  • •Flexible role management ensures proper access control and security.
  • •Streamlined interfaces for efficient catalog management and centralized order tracking and modification capabilities ensure customer satisfaction.

    • Tools and Technologies:

    Front-End: HTML | CSS | JS | Bootstrap | TypeScript | Angular

    Back-End: ASP.NET MVC Core | ASP.NET Web API | Entity Framework | JWT for security

    Methodologies: Onion Architecture | Unit of Work | Specification Pattern

    Education
    Sep 2019 – Jun 2023
    Bachelor of Computer Science, Faculty of Computers and Information - Luxor University
    Skills

    Back-End Development

    • •C#, OOP, .NET Core
    • •SQL Server, LINQ, Entity Framework Core
    • •MVC, ADO, Windows Forms, WPF
    • •Background Jobs & Scheduling (Hangfire), Real-Time Communication (WebSockets), Protobuf

    Cloud & Integration

    • •AWS (SQS, EC2, S3, SES)
    • •Google Cloud Storage & Google Drive API
    • • Oracle Simphony Integration.
    • •Payment Gateway Integration
    • •RESTful APIs Design, Cloud Data Synchronization.
    • •CI/CD Basics.

    Front-End & Mobile (Basics)

    • •HTML5, CSS3, TypeScript, JavaScript, Bootstrap.
    • •Dart, Flutter, Firebase.

    Architectures & Design Patterns

    • •Clean Architecture
    • •N-Tier Architecture
    • •Microservices Architecture
    • •Design Patterns (Repository, Unit of Work, Singleton)
    • •SOLID Principles

    Tools & Other Languages

    • •Git & GitHub, TFS
    • •Agile, Scrum Methodologies
    • •Linux
    • •C++, C, and Basic Python.
    • •Data Structures & Algorithms, Problem Solving
    Activities and Volunteering
    Mar 2020 – Oct 2022
    ICPC Luxor Community, TECHNICAL

    ICPC Luxor is one of the ICPC communities in Africa and the Arabia Region. An international non-profit

  • •Participant in ICPC Luxor from March 2020 to October 2022.
  • •Engaged in organizing awareness sessions and mentoring students.
  • •Volunteered for ACPC in Luxor in November 2021.
  • •Assistant coach for a university team in ECPC (Egyptian Collegiate Programming Contest) in August 2022.
  • •Head of the HR Team from Jan 2022 - Oct 2022
    • Languages
    Arabic (Native)
    English