Browse categories
Explore
Fiverr Pro
English
$
USD
I will full custom backend development
Carlos Jr
5.0
5.0
About this gig
Full Gig Description:
Are you looking for a professional backend developer to build a clean, efficient, and scalable system for your application?
I will create a fully custom backend using Node.js, Express, C#, and PostgreSQL, designed for performance, security, and easy integration. Whether you need a small API, automation scripts, or a full backend system Ive got you covered.
What youll get:
RESTful API endpoints
Secure authentication (JWT, bcrypt)
PostgreSQL database integration
Task automation (cron jobs, scripts)
Detailed installation & test documentation
Clean, modular code with best practices
Lets bring your idea to life with a solid backend foundation.
Get to know Carlos Jr
Carlos Jr
Back end developer turning logic into real world solutions
- FromBrazil
- Member sinceSep 2025
- Avg. response time25 days
- Last delivery4 months
Languages
English
I'm a Back-End developer passionate about creating efficient, secure, and scalable systems. Currently, I'm focused on improving my skills with Node.js, Express, C#, and PostgreSQL. I constantly seek real-world projects that challenge me to grow and deliver professional-level results.
FAQ
What technologies do you use for backend development?
I mainly work with Node.js, Express, C#, and PostgreSQL. Depending on your project, I can also integrate other tools or databases like MongoDB or MySQL if needed.
Do you provide front-end development too?
My main focus is backend development, but I can create basic front-end integrations (API connections, testing interfaces). For full front-end design, I recommend working with a dedicated front-end developer.
Will you deploy the backend to a server or hosting platform?
Yes, deployment support is included in the Premium Package. I can help you deploy your backend on services like Render, Vercel, AWS, or Railway.
Can you integrate external APIs or services (e.g., payment, email, etc.)?
Absolutely! External integrations are available from the Standard Package and fully included in the Premium Package.
How will I test the API after delivery?
I will provide Postman collections or test scripts so you can easily test all routes and verify everything is working perfectly.
Can I request new features after delivery?
Of course! You can request additional features or improvements through Gig Extras or by ordering a custom offer. I’ll be happy to extend your project.
Do you write documentation for the backend?
Yes, I include clear installation and usage documentation in every package so you can easily understand and manage your backend system.
Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
R 
redevv_
Brazil
It was a pleasure working with him, he's very talented and could solve my problem very quickly! He's gently and honest, i highly recommend this guy if you're trying to find someone expertise at their area!
Up to $50
Price
1 day
Duration
Helpful?
Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
R redevv_
Brazil
It was a pleasure working with him, he's very talented and could solve my problem very quickly! He's gently and honest, i highly recommend this guy if you're trying to find someone expertise at their area!
Up to $50
Price
1 day
Duration
Helpful?
