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I will build next js react js web app, saas, custom website full stack
johann M
About this gig
I will build a Next JS / React JS full stack web app or SaaS MVP that is fast, scalable, and ready to get real users. Whether you need a startup web application, SaaS platform, or custom business website, Ill turn your idea into a clean, production-grade Next JS project with a smooth UI and solid backend.
What I will build for you
- Next JS / React JS SaaS MVP or startup web app
- Custom business website or high-converting landing page
- Responsive UI with Tailwind CSS
- Auth, dashboard, API and database integration
- Performance + SEO optimization for better ranking
Tech stack & expertise
Next JS, React JS, TypeScript, Tailwind CSS, REST APIs, Supabase (or similar), full stack JavaScript.
How the process works;
- You share your idea and features
- I plan the pages and architecture
- I build, test, and deploy your app
Who this is for
SaaS founders, startups, and agencies needing a reliable Next JS / React JS full stack developer.
Send me a message now about your SaaS MVP or web app, and Ill tell you the best way we can ship it fast.
Get to know johann M
johann M
Full Stack Next JS, React JS Web Application Developer
- FromGermany
- Member sinceApr 2026
- Avg. response time1 hour
Languages
English, German, French, Italian, Arabic, Spanish
I’m a full‑stack web developer helping businesses turn ideas into fast, secure, and scalable web applications. I build responsive frontends, robust backends, and clean REST APIs using modern technologies, integrate relational and NoSQL databases, and connect third‑party services like payment gateways and email providers. I focus on performance, security, and SEO‑friendly structure, follow clean code standards, and use Git for version control. You’ll get reliable communication, clear documentation, and on‑time delivery tailored to your goals.
My Portfolio
FAQ
What can you build for me with Next JS and React JS?
I can build full stack web applications, SaaS MVPs, custom business websites, dashboards, and landing pages using Next JS and React JS. This includes frontend UI, basic backend logic, and API/database integration where needed.
Do you work on existing projects or only new builds?
Both. I can start a brand‑new Next JS / React JS project or join an existing codebase to add new features, refactor poor code, improve performance, or fix bugs while keeping your current structure intact.
What do you need from me to get started?
I need a clear description of your idea, required pages or features, any designs or references (Figma, examples, brand assets), and your preferred tech choices if you have them. The clearer the requirements, the faster we can move.
How do revisions work?
Revisions are used to refine what we already built, not to add new features. Each package includes a set number of revision rounds where we adjust UI, copy, and minor logic so the final result matches your expectations.
Will my app or website be responsive and mobile‑friendly?
Yes. All packages include responsive design so your SaaS, dashboard, or website works well on desktop, tablet, and mobile devices, with layouts and components adjusted for smaller screens.
Do you handle deployment and hosting setup?
Yes. I can deploy your Next JS app to Vercel (recommended) or set it up on your chosen hosting platform. I’ll also configure basic environment variables and give you instructions so you can manage it afterward.
Can you integrate APIs, payments, or third‑party tools?
Yes. I can integrate REST APIs, authentication providers, email services, analytics, and payment gateways like Stripe, as long as they provide proper documentation and are included in the agreed scope.
How long will my project take to deliver?
Delivery time depends on the package and complexity. Simple landing pages are faster, while SaaS MVPs or multi‑page web apps take longer. I’ll confirm a realistic timeline after reviewing your requirements before you place an order.
Will I get clean, maintainable code?
Yes. I follow modern best practices with clear folder structure, reusable components, and meaningful naming, so your team (or another developer later) can easily understand and extend the project.
Can we discuss my idea before I order?
Absolutely. You should contact me before ordering so we can confirm scope, pricing, and delivery time. This ensures there are no surprises and that you choose the right package for your SaaS or web app.
