I will design and build a rest API with java spring boot or csharp dotnet


About this gig
Looking for a reliable REST API for your project?
I design and build REST APIs using Java/Spring or C#/.NET, ready to connect with your existing systems or a new application.
My services include:
Custom REST APIs: CRUD operations, multi-endpoint APIs, authentication (JWT, OAuth).
Integrations: connecting your tools and systems so they work together seamlessly.
Database design: structured, efficient databases behind your API.
Documentation: clear technical docs so your team (or future developers) can pick up the code easily.
Why choose me?
I have spent several years as the long-term technical partner for an industrial group, designing and maintaining critical backend systems used daily by hundreds of users. I bring the same rigor to every Fiverr project: clean architecture, secure endpoints, and clear communication.
Let's discuss your project! Contact me today to get started.
Get to know Damien C
Full stack developer Java and dotnet Angular
- FromFrance
- Member sinceFeb 2021
- Avg. response time1 hour
Languages
French, English
FAQ
What formats do you deliver the API in?
A working REST API with clear endpoint documentation (Postman collection or Swagger/OpenAPI), plus the source code.
Can you integrate with third-party services (payment, email, etc.)?
Yes, I regularly integrate APIs with third-party services such as payment gateways, email providers, or other external systems.
Do you provide authentication and security for the API?
Yes, I implement authentication (JWT or OAuth) and follow security best practices to protect your endpoints
Can you connect this API to my existing application?
Yes, I can build the API to plug directly into your existing frontend or system, or connect it to an application I build for you separately.
