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I will build your nextjs website or web app
Umit K.
About this gig
Looking for a developer who actually ships? I build production-ready websites and web apps using Next.js, React, and TypeScript not
templates, real custom code.
What I can build for you:
- Business websites and landing pages
- Booking and reservation systems
- AI-powered features and chatbots
- Marketplaces and listing platforms
- User authentication and dashboards
- Payment integration (Stripe, PayPal)
- REST APIs and backend systems
All projects are built with Next.js and TypeScript, mobile responsive, fast, SEO optimized, and deployed ready to use.
Check my portfolio I shipped a Canadian AI car marketplace, an AI government Q&A platform, and a full booking system for a real
business.
Note: Hosting and third-party API costs (OpenAI, Anthropic, etc.) are not included. Clients provide their own accounts.
Message me before ordering if you have a custom project.
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 Umit K.
Umit K.
Full Stack Developer Nextjs and AI Web Apps
- FromCanada
- Member sinceSep 2019
- Avg. response time1 hour
Languages
English, Turkish
From landing pages to full-stack platforms — I handle
design, development, and deployment end to end.
Stack: Next.js, React, TypeScript, Node.js, PostgreSQL, Docker, Kubernetes
You bring the idea. I ship the product.
My Portfolio
FAQ
Do you work with any tech stack or only Next.js?
I specialize in Next.js and React but can work with any stack. Message me with your requirements and I'll confirm before you order.
Are hosting and API costs included?
No. Hosting (Vercel, Railway, etc.) and third-party API costs (OpenAI, Stripe, etc.) are not included. You'll need your own accounts. I handle setup and deployment.
How do revisions work?
Each package includes a set number of revisions. A revision means changes to existing features — not new features. Scope changes are quoted separately.
How do we communicate during the project?
Through Fiverr messages. I provide updates at each major milestone and respond within 24 hours.
Can you work with an existing codebase?
Yes. I can add features, fix bugs, or refactor existing projects. Share your repo details before ordering so I can review scope.
What do you need from me to start?
Clear description of what you want, any design references or Figma files, and access to any existing accounts (domain, hosting, APIs) if applicable.
Do you provide the source code?
Yes. Full source code is delivered via GitHub or zip file. You own everything built for you.
How long does a project take?
Starter websites: 7 days. Business websites: 14 days. Full web apps: 21 days. Complex projects are discussed before ordering.
Can you build AI-powered features?
Yes. I've built AI chat assistants, natural language search, and RAG pipelines using OpenAI and Anthropic APIs. You provide your own API keys.
Can you design the UI or do I need to provide designs?
I can design and build. If you have Figma files I'll follow them exactly. If not, I'll create a clean modern design based on your requirements.
