I will build a custom web app using NextJS FastAPI Flask or Streamlit

Need a web app, dashboard or backend API built properly and delivered on time? I build clean, fast and mobile friendly web applications from the first idea to live deployment, with code you can actually maintain.

I choose the tools that fit your project instead of forcing one stack on every job. For polished, user facing websites I use NextJS and React. For fast backends and REST APIs I use FastAPI or Flask. For data apps, internal tools and quick prototypes I use Streamlit. For storage I work with PostgreSQL, Supabase and Firebase.

What you get

A working web app built to your requirements
Responsive design that looks right on phones, tablets and desktops
Backend API and database setup where needed
User login and authentication on higher packages
Live deployment with a shareable link
Clean, commented code and a short setup guide so you or your next developer can continue the work

Experience behind this gig

I have shipped real products, not only practice projects. I built a production NextJS frontend with Firebase authentication, routing and order workflows, deployed on Vercel. I built a campus AI marketplace used by over 2000 students with Streamlit and Supabase, including live availability and a seller dashboard. I also built a wildfire prediction platform with a FastAPI backend, Docker packaging and automated CI and CD deployment that cut release time from 15 minutes to under 2 minutes. If you want AI inside your app, such as a chatbot, document search or model predictions, I can add that too.

How I work

You share your idea, rough sketches, screens or requirements
I confirm the scope, the package and the delivery time before I start, so there are no surprises
I build in stages and show you progress along the way
I deliver the finished app, the source code and the guide
I fix issues and apply the revisions included in your package

Good for

Startups and MVPs, business dashboards, admin panels, booking or listing sites, internal company tools, portfolio websites, data apps and API backends

Why choose me

I reply within 2 hours and I explain technical things in plain language. I only promise what I can deliver on time, and I tell you early if something in the scope needs to change. I also document my work, so you are never stuck depending on me to understand your own project.

Before ordering, send me a message with what you want to build and any websites or apps you like as examples. I will confirm the right package and a clear delivery time. If your project is bigger than the listed packages, tell me and we can agree a custom offer.