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Fiverr Pro
English
$
USD
I will build a custom react web app with a fastapi backend
Matthew
About this gig
Need a web app built around your workflow? I can develop a React interface and a Python FastAPI backend for dashboards, internal tools and focused MVP features.
We start by defining the screens, data and user actions your app needs. You receive source code and setup instructions, with the features and testing agreed before development.
Depending on the package, the scope can include:
- Responsive React screens
- FastAPI endpoints and database integration
- Form validation and error handling
- A documented handover
Each package covers a clearly defined feature set. Hosting, paid APIs, third-party subscriptions, complex payment flows and ongoing maintenance are quoted separately. Authentication is included only when explicitly scoped.
Send me your brief, sketches or existing repository before ordering so I can confirm the right scope and delivery time.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Matthew
Matthew
Web Apps, IOS Native Apps, Embedded Firmware, Siemens PLC and 3D CAD
- FromItaly
- Member sinceMay 2026
- Avg. response time1 hour
Languages
English, Spanish
I help turn technical ideas into working software and prototypes. I lead ONIT, a small engineering studio covering React and FastAPI web apps, Arduino and ESP32 firmware, Siemens PLC programming, and Fusion 360 CAD. Our workshop includes 3D printing, CNC and electronics equipment, so hardware validation can be planned when suitable equipment is available. Tell me what you want to build, your current setup and your deadline. We will define the deliverables, testing approach and scope before work begins.
FAQ
Will I own the code?
Yes — full ownership, no licensing strings attached. You get the source code on delivery and instructions to run it yourself.
What if I need changes after delivery?
Each tier includes revisions during the build. After delivery, small fixes are free for 14 days. Bigger changes can be a new order or hourly engagement.
Do you sign NDAs?
Yes, no problem. Send me yours before we discuss the project, or I can use a standard mutual NDA. Communication stays on Fiverr until both parties agree otherwise.
What's the difference between the Standard and Premium tiers?
Standard gives you a working app with backend, frontend, auth and a Docker config — you handle deployment. Premium includes everything plus Stripe payments, full deployment to your hosting with CI/CD, and proper documentation. Premium is the right choice if you're launching to real users.
How fast do you reply?
Within a few hours during EU working hours (8:00–21:00 CET). Outside those hours, within 24h max. If a project is urgent, mention it in your first message.
Is hosting included?
No. Deployment can be scoped separately; hosting and subscriptions are paid by the client.
Can you improve an existing app?
Yes, after reviewing the relevant code and reproducing the requested issue or feature.
What counts as a revision?
An adjustment within the agreed requirements. New screens or features require a scope update.
