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I will develop rest apis using python fastapi or flask
Wilian R Diaz
About this gig
Professional REST API Development with FastAPI & Flask
Looking for a reliable backend developer to build a secure, scalable, and well-documented REST API?
You're in the right place.
I am a Software & Integration Architect with years of experience developing enterprise-grade backend solutions for medium and large companies. I specialize in designing high-performance APIs following industry best practices.
What I can build
- REST APIs with FastAPI or Flask
- CRUD Applications
- Authentication (JWT, OAuth2)
- Database Integration (MySQL, PostgreSQL, SQL Server)
- API Documentation (Swagger/OpenAPI)
- Dockerized Applications
- Error Handling
- Clean Architecture
- SOLID Principles
- Environment Configuration
- Logging
- API Testing
Why choose me?
- Clean and maintainable code
- Secure API development
- Fast communication
- Professional documentation
- On-time delivery
- Enterprise-level architecture
Whether you need a small API or a complete backend system, I'll deliver a reliable solution tailored to your requirements.
Please contact me before placing an order so we can discuss your project and choose the best package.
Get to know Wilian R Diaz
Wilian R Diaz
Enterprise Integration Architect
- FromColombia
- Member sinceAug 2025
Languages
English, Spanish
I am a Corporate IT Integration Architect and Systems Engineer with extensive experience in designing and implementing enterprise solutions, APIs, and scalable system integrations. I specialize in modern architectures and digital transformation using technologies like .NET, Python, AWS, Azure, and GCP. I have a proven track record in technical leadership, defining integration standards, and driving technological modernization.
Other Software Development Services I Offer
FAQ
1. What do you need before starting?
I need a detailed description of your project, required features, preferred technology stack, database information (if applicable), and any API documentation or references you already have.
2. Do you develop custom APIs?
Yes. Every API is built specifically for your business requirements.
3. Which technologies do you use?
Python, FastAPI, Flask, MySQL, PostgreSQL, SQL Server, Docker, REST APIs, JWT Authentication, Google Cloud, Azure, Redis and more.
4. Will I receive the source code?
Yes. All packages include the complete source code.
5. Do you deploy the application?
Yes. Deployment assistance is available for Google Cloud, Azure, Docker and Linux servers.
6. Can you integrate third-party APIs?
Absolutely. I can integrate payment gateways, CRMs, ERPs, AI services, email providers, and other REST APIs.
7. Do you provide API documentation?
Yes. Every project includes Swagger/OpenAPI documentation when applicable.
8. What if my project is larger than your packages?
No problem. Contact me first, and I'll prepare a custom offer tailored to your project.
