Emir Deniz

Software Developer & IT Specialist

Göze Yapı Malzemeleri A.Ş. • Temps plein

Feb 2026 - Present • 5 mos

Developing web-based applications and e-commerce integrations for Trendyol and Hepsiburada marketplaces. Building REST APIs with ASP.NET Core, managing MSSQL databases, and creating React dashboards for business operations. Currently architecting and developing an internal ERP-to-marketplace integration system that connects Logo Tiger 3 with multiple e-commerce platforms. The system handles real-time stock synchronization, automated order management, product listing updates, and business analytics through a custom dashboard. Backend development with ASP.NET Core Web API, C#, Entity Framework Core, and Microsoft SQL Server. Frontend development with React.js and TypeScript. Designing scalable REST API architecture with clean code principles, SOLID design patterns, and proper error handling. Also responsible for full IT infrastructure management — network configuration, hardware maintenance, user support, and system administration. Ensuring uninterrupted operation of all internal systems and providing L1/L2 level technical support across the organization. Bridging the gap between software development and IT operations — analyzing infrastructure and application layers together to deliver end-to-end solutions.

Full Stack Developer

EmirOtomatCNC • Temps plein

Aug 2024 - Feb 2026 • 1 yr 6 mos

Built a full e-commerce platform from scratch for an industrial CNC machinery company. Designed and developed the backend with ASP.NET Core Web API, frontend with React.js, and database with Microsoft SQL Server. Backend architecture included RESTful Web API design with strongly-typed DTO patterns, custom middleware for authentication, validation and error handling, dependency injection, and repository pattern. Followed SOLID principles throughout to ensure a maintainable and scalable codebase. Frontend built as a Single Page Application using React.js with hooks (useState, useEffect, useContext), custom hooks, Redux state management, React Router DOM, and Axios. Delivered a responsive and performant user experience across all devices. Database layer designed on Microsoft SQL Server with enterprise-level architecture — normalization, stored procedures, indexing strategies, and query optimization improved overall database performance by 40%. Used Entity Framework Core Code-First approach with complex LINQ queries and Fluent API configuration. Security implemented with JWT authentication and ASP.NET Core Identity with role-based authorization. Performance optimized through code splitting, lazy loading, Redis caching, and query optimization — reducing page load times by 35%. Platform features included detailed product catalog, advanced search and filtering, shopping cart, secure payment integration, and a full order management system. Version control with Git, CI/CD pipelines, and automated testing processes were established throughout development.

Full Stack Developer Intern

Wissen Akademie (BAU BRIGHT Program) • Temps plein

Mar 2023 - Aug 2024 • 1 yr 5 mos

Completed the BAU BRIGHT Full Stack Software Development Program by Bahçeşehir University Wissen Akademie — a 1,040-hour intensive training covering enterprise-level software development from ground up. Backend: Advanced C# and OOP concepts, SOLID principles, ASP.NET Core MVC and Web API, RESTful service design, JWT and OAuth 2.0 authentication, middleware, dependency injection, repository pattern. Database: Microsoft SQL Server, T-SQL, stored procedures, triggers, views, indexing strategies, query optimization, Entity Framework Core (Code-First & Database-First), complex LINQ queries. Frontend: HTML5, CSS3, JavaScript ES6+, React.js with hooks (useState, useEffect, useContext, custom hooks), Redux state management, React Router, Axios, Bootstrap, responsive design. Mobile & Backend JS: React Native for cross-platform mobile development, Node.js and Express for server-side JavaScript, RESTful API development with middleware and async patterns. Additional: Git version control, CI/CD basics, Agile/Scrum methodology, Swagger API documentation, automated testing, Windows Forms and WPF desktop development with MVVM pattern.