Hello, I'm Hany Sweidan, a Full Stack Developer specializing in NestJS, Next.js, and PostgreSQL, building scalable Web systems, APIs, and microservices with a focus on performance, maintainability, and clean architecture.
I’m a Software Engineer who enjoys building reliable software systems that power modern applications. I specialize in NestJS, Next.js, and PostgreSQL, developing scalable APIs, microservices, and web applications.
Currently, I work in the retail technology sector, contributing to the development of production-grade systems that support complex business operations, My daily work involves designing and building RESTful APIs, Grpc APIs, Modeling and optimizing PostgreSQL databases, implementing complex business logic, and ensuring clean, modular, and maintainable code across the stack.
I enjoy working on challenging backend problems, designing clean architectures, and building software that aligns closely with real business needs and integrating this with the an interesting frontend UI/UX experience.
- Playing an active role in the development and enhancement of a large-scale Backoffice system within the retail domain, supporting core operational workflows.
- Working across multiple system areas including invoicing, reporting, dashboards, system analytics, user & role management, and pricing-related modules.
- Participated in the design and implementation of business-critical features such as Loyalty Programs and Promotions.
- Developing scalable RESTful APIs within a microservices architecture using NestJS and API Gateway.
- Designing and optimizing PostgreSQL data models to support complex business requirements.
- Implementing and maintaining complex business logic related to pricing, discounts, rewards, and transactional flows.
- Collaborating in an Agile environment with cross-functional teams to deliver production-ready features.
- Gained a deeper understanding of web development fundamentals and best practices through mentorship from senior developers.
- Acquired hands-on experience with React.js, NestJS, and PostgreSQL while exploring real production systems.
- -Developed a full-featured E-commerce mobile application.
- -Implemented authentication, cart management, and real-time order tracking.
- -Integrated backend services and firebase services.
- -Designed scalable app architecture.
- -Implemented secure authentication and RESTful APIs.
- -Designed relational database schema.
- -Full-stack architecture implementation.
- -Designed and developed a multi-level 3D game using Unity and C#.
- -Implemented gameplay mechanics, physics interactions, and player ability systems.
- -Designed structured game logic and reusable components following OOP principles.
- -Built three uniquely designed levels with increasing complexity.
- -Focused on performance optimization and smooth user experience.
- -Designed and developed multiple independent versions of my personal portfolio website using different frontend and backend technologies, each featuring distinct designs, structures, and architectural approaches.
- -Built a fully responsive portfolio using plain HTML, CSS, and JavaScript, focusing on UI fundamentals and responsive layout techniques.
- -Developed a React-based portfolio with a component-driven architecture and dynamic content rendering.
- -Engineered a full-stack portfolio using Next.js and NestJS, implementing server-side rendering, RESTful APIs, and backend-driven functionality, and integrated an AI-powered chatbot model in the portfolio to experiment with AI-enhanced user interaction.
- -Applied clean architecture principles, modular design, and reusable components across implementations.
Want to talk tech, collaborate on a project, or just say hi? Feel free to reach out anytime.