Browse categories
Explore
Fiverr Pro
English
$
USD
I will migrate any other backend framework into asp net
Mazen A
About this gig
Are you looking to bridge the gap between your backend data and a stunning user experience? You are in the right place!
Many developers can build a frontend, and many can build an API.but making them communicate seamlessly, securely, and efficiently requires a specialist. Whether you have a newly developed API that needs a UI, or an existing custom frontend that needs to fetch live data, I will handle the integration with clean, industry-standard code.
As a Full-Stack Software Engineer specializing in modern web ecosystems, I ensure your application is fast, scalable, and fully synchronized.
️ What This Gig Covers:
- Complete API Integration: Connecting RESTful APIs to your custom frontend (React, Next.js, HTML/JS, or MVC views).
- Secure Authentication Flows: Implementing JWT handling, HTTP-only cookies, social logins, and role-based access.
- State Management & Data Fetching: Optimized data fetching (Axios, Fetch API, or React Query) to avoid unnecessary re-renders.
- Dynamic UI Binding: Mapping complex JSON responses perfectly to your UI components, tables, dashboards, and charts.
- Form Handling & Validation: Connecting frontend forms to your API endpoints with robust error handling and c
Get to know Mazen A
Mazen A
- FromEgypt
- Member sinceAug 2023
Languages
English, Arabic, Japanese
I'm a Full Stack Developer specializing in ASP.NET Core, C#, React, and SQL Server. As a Computer Science graduate, I've built web applications through internships, freelance work, and university projects, including e-commerce, booking, restaurant, and business management systems. I focus on developing secure, scalable, and responsive applications with clean, maintainable code. I'm committed to delivering high-quality solutions, clear communication, and on-time results for every client.
My Portfolio
FAQ
What do I need to provide to get started?
To start immediately, I will need access to your frontend codebase (GitHub repository, zip file, etc.) and your API documentation (such as a Swagger UI link, a Postman collection, or a clear markdown/text document detailing the endpoints, request bodies, and responses).
What if I don't have API documentation?
No worries! If you don't have formal documentation but your API is functional, we can hop on a quick chat or you can send me a list of endpoints alongside sample JSON responses. If the backend code is available, I can also review the source controllers directly to understand how the endpoints operat
Can you fix CORS errors or API connection bugs?
Absolutely. Cross-Origin Resource Sharing (CORS) errors are incredibly common when connecting a frontend (like React running on port 3000) to a backend (like ASP.NET Core running on port 5000). I can configure the proper headers on your backend or set up a proxy on your frontend to fix this instantl
Do you integrate third-party APIs (like Stripe, Google Maps, or Firebase)?
Yes, I integrate both custom-built APIs (like your own ASP.NET Core or Node.js backends) and major third-party developer APIs. If it has a RESTful endpoint or an SDK, I can connect it to your custom interface.
How do you handle secure data like API keys and JWT tokens?
Security is a priority. I never hardcode sensitive keys or credentials into the frontend source code. I configure environment variables (.env files) for API base URLs and public keys, and I set up robust token management (such as secure storage or handling HTTP-only cookies) for user authentication
Can you build the API or design the frontend if I’m missing parts of it?
This specific gig is purely for integrating existing frontends and backends. However, because I am a Full-Stack Software Engineer, I am fully equipped to build things from scratch or extend your backend! Please send me a direct message so I can give you a custom quote for full-stack development.
